- Inkscape Devel - Inkscape Mailman

Doxygen Documentation
by Arshdeep Singh 10 Jul '13

10 Jul '13

Hello devs, I've built my local copy of Inkscape's doxygen documentation. My documentation does not have class diagrams. Is this consistent with other people that build it for the 0.49 development branch ? I found the 'unofficial' doxygen documentation for the Inkscape-0.48. http://fossies.org/dox/inkscape-0.48.4/structSPDesktop.html You can clearly see the class diagram in the link. My local copy doesn't build those. Any thing I am missing ? -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Inkscape Window Size won't stick
by michael grosberg 09 Jul '13

09 Jul '13

Recently (I'm using an updated development version) I noticed that Inkscape doesn't seem to be able to remember the last window geometry. Well, it does, initially, when I open a document - but a second later the window size changes to a size of 1920X768. Why that size? I don't know, but I have a two monitor setup, both 1280X1024, so it might be 75% of desktop size. I am using the latest dev build on Window 7 64bit. I am not seeing the problem with the stable version. Does anyone have some insight on what might cause this?

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On Canvas Align: Video Demo
by Martin Owens 08 Jul '13

08 Jul '13

Hey Devs, I've got a new feature (uncommitted) to show: http://blip.tv/martin-owens/on-canvas-alignment-feature-for-inkscape-6613286 I'd like to know what you think and your feedback could be key to deciding where my new handles would fit with people's workflows. Excited, Martin Owens

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[Recolor] Week #2 Progress
by Arshdeep Singh 07 Jul '13

07 Jul '13

Hello, There hasn't been any coding this week. It has been mostly a brainstorming session where I have been looking at ways to achieve the purpose of the tool without interfering with other tools' functioning. The approach of enabling the paint-selector object to color 'active' objects from the selection will spiral into disaster as pointed out by Krzysztof. Now, I plan to directly access the SPDesktop object (again suggested by Krzysztof) and be working with Inkscape :: Selection . There are a few design issues that promptly come to mind which will be discussed shortly. + Firstly, as a followup to my previous question: "How to extract the fill information using the getStyleProperty ( ... ) function" - Is there any other method I can extract the style information ? I see recurring code of the form where a css object is created and the particular property is set using *sp_desktop_get_style(). *Will this be of any use ? I need to fetch the 'fill' property of the style of the object. + Problem of how to know from which objects I can access SPDekstop and related functions. And for the matter, Inkscape::Selection and realted functions too. + I intend to add a structure definition in gimpcolorwheel.c going as: struct WheelColorMarker { gchar id[6]; //the id is always 6 characters long (is thsi correct ?) gchar fill[7]; //#rrggbb in hex } I will use a dynamic array of this to fetch the id and color of the objects selected on the canvas and paint the color wheel with their respective markers. I will need access to functions which can create color into rgb triad of gdouble from the hex code of fill. +Last and the most nerve wracking question: Where do I add the functions that actually will change the colors ? in paint-selector.cpp ? If yes, how do I get access to the selected objects from that class ? Also, I remember discussing this on the mailing list, that if I change the attribute in the XML editor, it automatically gets reflected on the canvas ? Just want to confirm that if I use XML to change the solid colors of the objects then will they reflect on the canvas or not ? Thanks, --- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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[Units] Refactoring Progress
by Matthew Petroff 07 Jul '13

07 Jul '13

In the past week, I decided against using Boost Units, began porting code to "util/units.cpp", and fixed a minor, long-standing bug in the page size selector dialog. http://www.mpetroff.net/archives/2013/07/07/refactoring-progress/ -Matthew

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Which container used for path nodes?
by Shriramana Sharma 06 Jul '13

06 Jul '13

I'm not sure where in the source tree to look for this, so I'll ask this here. What container does Inkscape use to store the nodes of its paths? I mean, a drawing program would often use (in STL terminology) push_back, pop_back, insert and erase. (I don't think push_front would often be needed.) The contained value type would probably contain a few flags in addition to the x,y coordinates. So I'm curious what container you people chose to cater to these requirements. Thanks. -- Shriramana Sharma ஶ்ரீரமணஶர்மா श्रीरमणशर्मा

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[Recolor] GSoc 2013: Week 2 Brickwall
by Arshdeep Singh 06 Jul '13

06 Jul '13

Hello, As a follow-up to my first week, I have been digging into numerous source files to get a hold to the functionality that handles coloring objects selected on the canvas ( desktop ) . The file paint-selector.cpp is a generic file which handles the different color selectors like the color-wheel selector( sp-color-wheel-selector.cpp ) which is our attention right now. Now, the FillNStroke class (fill-style.cpp) puts the Paint Selector in the appropriate mode. The Paint Selector then passes control to the color selector which repaints the object on the canvas which is selected. There is just one problem with respect to the demands of my project : The color selector will apply changes to ALL objects currently in the SELECTION list. What I need is that a group of objects are selected, with the ONLY ONE object selected or atleast the color selector thinks so ? Any ideas on how I actually create such pseudo-selection criteria ? I have an approach in mind that goes like this: I can include an extra Paint Selector mode by the name of MODE_RECOLOR and in that mode the desktop handles the selection differently that it maintains a list of background selections and an ACTIVE selection. The ACTIVE selection is what the color selector sees. When I toggle the selection, the appropriate object becomes the ACTIVE SELECTION. There must be many experienced developers here who know the in and outs of the coloring mechanism. Can you guys suggest a better solution/ go-ahead whether my proposed way is possible/ an easier method ? Waiting eagerly for a reply. -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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[Tracing] Weekly report #4
by Vinícius dos Santos Oliveira 06 Jul '13

06 Jul '13

Hi all, No progress this week. I've being at FISL all day for the last days and I've been enjoying a lot. My talk will be tomorrow and the slides are ready, but I still want to finish the example application. Next week (or two, if necessary), I won't leave my home till I make some impressive progress to compensate this delay. I'm attaching a picture of the event (me and Richard Stallman). There is so much thing that I could tell about the event. Free software ftw. =) -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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Extension Organisation Was: [Merge] lp716676
by Martin Owens 05 Jul '13

05 Jul '13

Thanks suv, I've CC'd devel with the below thoughts. > On Fri, 2013-07-05 at 20:02 +0200, su_v wrote: > to get an idea whether others agree with shipping this extension with > inkscape or not I feel extension inclusion is a packaging and code administration question and I think about it like this: a) Should Free Software extensions be linked to the inkscape project? I emphatically say yes, because the more disassociated extensions are, the worse their code and the more duplication happens. We want to encourage extension writers to be members of our project family. Who knows, they might get comfortable and start doing C++ ;-) b) Should all extensions be packaged into the same deb file? Without a policy on which extensions and how a package of non-core extensions might work. It's worth considering because it allows c). c) Should extensions be committed to trunk. This is code layout. Extensions don't need to be compiled but are packaged and might be better splitting out if we could benefit from smarter reviews from python programmers who might be intimidated by the inkscape codebase at the moment. Testing for inkscape can be done in situ, but testing extensions involves extra steps which could be handled with tools in such a specialised branch. It would be possible for instance to have extensions live in an inkscape-extensions project or branch and for packages to be curated. Like 'ink-generator' but with a "Get More Extensions..." link at the bottom of the Extensions menu that either links to a website page with the packages for non-package-managed platforms, or loaded the right os package list for managed platforms. The additional benefit would be the separation of versions. Extension packages could be fixed, released and integrated at a different speed to the glacial inkscape release process. I'd be interested in hearing from other developers about their thoughts since I can understand that having thousands of highly specialised extensions in trunk might not be desirable but splitting them out might be heretical. Best Regards, Martin Owens

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Could I get a log-in for the wiki?
by William Adams 05 Jul '13

05 Jul '13

Apparently I'm supposed to ask here? ( http://wiki.inkscape.org/wiki/index.php?title=Special:UserLogin&returnto=In… ) I'm a graphic designer who's gotten quite disgusted w/ Adobe and want to help out w/ any opensource alternatives in any way that I can. William -- William Adams senior graphic designer Fry Communications Sphinx of black quartz, judge my vow.

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Fwd: [Templates] Report
by Jan Darowski 05 Jul '13

05 Jul '13

There are no major ui changes since last published mockup. I still need to decide which part of the dialog will be scrolled (and how to do it) and how to retrieve templates info from the svg file. You can also see an empty entry in the templates list. That's something disturbing as origins of this empty entry are completely unknown. 2013/7/5 John Smith <john.smith7545@...36...> > Hello Jan, > > > >> Real Inkscape templates are loaded by the dialog. > >> Using the dialog actually creates new document from the given template . > >> Dialog has been added as a menu item to the file menu > > Great work !! > Looking forward to seeing the UI ... do you have a screenshot ? > > John. > > >

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[Templates] Report
by Jan Darowski 04 Jul '13

04 Jul '13

Hi! What has been done? Real Inkscape templates are loaded by the dialog. Using the dialog actually creates new document from the given template . Dialog has been added as a menu item to the file menu. Some compiling problems, which appeared after adding the dialog to the project, have been solved What's coming? Retrieving data from the templates file and showing them in the widget. Searching logic. When? According to the proposals timeline it should be ready on Monday. It's very possible that I will do it in time. So, the first big part (static templates) is quiet quickly coming to the end (of course there are few things left to be done). If anyone of you, have some additional suggestions / expectations to the next part (procedural templates), please, write about them as soon as possible so I could take them into account while designing details. Jan Darowski, Slagvi

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Automating an Inkscape workflow
by Eric Greveson 04 Jul '13

04 Jul '13

Hi all, This is my first post to the Inkscape developer list, so - hello! I've been using Inkscape for various server-side operations as part of a project I'm currently working on, and I believe I've run into the limits of the existing scripting / extensions capability. However, I'll describe my requirements, problem, current solution, and proposed improvements, and see what you think. The requirements: I wish to perform "deep subtraction" of one pre-defined path (let's call it P) from an SVG - that is, to perform a Boolean difference operation against each path within the SVG (let's call them S1, S2, ... Sn) such that a 'hole' (in the shape of my path) is punched through all of the SVG layers. The problem: Inkscape Boolean difference operations operate on pairs of paths, such that the uppermost of the two paths is subtracted from the lower path. The operation may only be performed on selections of two paths (i.e. you can't select 10 paths and have the uppermost path be subtracted from all of the lower 9 simultaneously). My current solution: The obvious approach is to simply perform the Boolean operation once for each path in the SVG, cloning the path P to allow it to be subtracted again each time. That is: Create P Perform S1 - P Create P Perform S2 - P ... Create P Perform Sn - P This results in every path in the SVG having P subtracted, which is exactly what I want. To implement the "Create P" operation, I've written a Python extension that inserts a <path> element into the document (i.e. I can create P by simply executing this extension script within Inkscape). To perform a difference operation, I can use the (somewhat maligned?) command line interface with --select <id of S1> --select <id of P> --verb SelectionDiff and I can automatically call my "create P" extension with --verb <my.extension.name.noprefs>. I therefore just have to ensure all paths in the source SVG have IDs, extract these IDs, and then chain a big long command line together to perform all the creation, selection, and Boolean subtractions. I accomplish the ID extraction with my own Python script (running independently from Inkscape, simply using normal XML parsing code) and get that script to concoct a long string of command-line arguments. The obvious problem here is that for files with more than a few IDs, I run into the command-line argument length limit. I have hacked around this by editing Inkscape's main.cpp file and allowing it to take --select / --verb arguments from a text file instead (note that --shell does not do the same thing - it still requires all commands to be on one shell-line, and the line length has a limit). Clearly this is not particularly clever, although it does work - it means I have my own special build of Inkscape and it uses an extremely clunky "scripting" mechanism. The proposed improvements: I have looked at alternative solutions and have come up with the following: - I could edit the C++ code for Boolean operations such that the difference operation works on more than one path. However this is very specific to my problem, and it's likely that I'll want to perform other Inkscape automation tasks in future that don't use the Boolean ops. - There appeared to be some DBus API at one point but it seems to have fizzled out ( http://comments.gmane.org/gmane.comp.graphics.inkscape.devel/40384 was a useful discussion) - and DBus isn't really ideal for this kind of scripting anyway. - Allow further scripting of Inkscape through a Python API - this is my preferred solution, and also, it seems, several other peoples'. The major drawback is that this is likely to be more coding work. However, I have a suggestion that will solve my immediate problem and potentially be useful to others. If I wrote a Python API that allowed Inkscape extension scripts to execute Inkscape verbs and selections, then I could perform all of the necessary operations inside a single Python extension. I could then run the extension from the command line in the usual way (--verb my.extension.name.noprefs). Initially this might take the form of an extra couple of functions on the Python inkex.Effect object: - do_verb(verb_name) - select_ids(id_list) Then any Inkscape Effect extensions can execute verbs and modify selections as they see fit. Does this sound like a good plan? Any other input? I'm happy to write the code for this if you think it would be generally useful, it seems a bit limiting at the moment that effects essentially have to modify the raw XML document themselves to get any useful work done. If the "do_verb" function was modified to take an argument list (along with the appropriate C++ functions), then it would allow for even richer GUI-free interaction (e.g. automation of "Save As" operations and so on). Thanks for reading such a long message, Eric

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[Tracing] Weekly status report #3
by Vinícius dos Santos Oliveira 02 Jul '13

02 Jul '13

Well, I'm late (at least in my mind) and I'm sorry about that. In this week's update, libdepixelize is able to generate the generalized voronoi diagrams. As every week's update, I'm attaching some samples for fast tracking of the project. The next steps are: - Extract the spline curves from the graph (it should be this week, but I'll have to delay) - Optimize the curve I'll do a presentation about my "hobby project" on FISL and I'll need this week to prepare the surprise examples, the slides and so on. Then, I'm taking a week off, but I'll try to not delay anything. See ya! -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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[Units] Length Class and Refactoring
by Matthew Petroff 02 Jul '13

02 Jul '13

Since my last update, I have implemented a "Length" class to store a length with its unit and perform unit conversions and have begun porting code to the new class. http://www.mpetroff.net/archives/2013/06/29/length-class-and-refactoring/ -Matthew

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GSoC 2013: Implement a new raster-to-vector algorithm...
by Vinícius dos Santos Oliveira 02 Jul '13

02 Jul '13

I'll be coding for this project very soon and I created a repository for it at https://github.com/vinipsmaker/kopf2011 . When we decide where is the best place to keep the project during the WIP phase, I'll move it. I'll be using the namespace *Kopf2011* for this library. If you don't like the namespace, let me know and I can change that. I'll publish updates of the project at my personal blog at http://vinipsmaker.wordpress.com/category/computacao/gsoc2013-inkscape/ . Let me know if you need anything else. -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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Review Request: Selection Transform Refactor
by Martin Owens 02 Jul '13

02 Jul '13

Hey Inkscape Devs, I need some reviews of my new branch available here: lp:~doctormo/inkscape/seltrans-refactor It's a refactoring of the selection transformation code. Not a complete rewrite, but a considerable change. The aims of these changes are: * To merge center exceptions, making them more natural * Reduce line count by 80 lines, 244 lines removed 164 lines added * Reduce class to non-class to class calling * Identifiable handle type, remove assumptive code that uses other properties to guess what kind of handle it is. I have a feature I'm planning to add in and this refactoring will help with that. If you can review this code, I'd be most grateful to know if I've done anything wrong or if you can see other ways to improve the factoring. Best Regards, Martin OWens

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LPE: Scaling Skeletons
by Martin Owens 01 Jul '13

01 Jul '13

While investigating bug 616198, I'm showing a weird crash at live_effects/lpe-bendpath.cpp:108 the uskeleton.cuts variable is either not set or not setup correctly and borks. I couldn't work out exactly what to do since it's not anything I can see. I'd love to know what's going wrong with this bug to improve my understanding of C++. Any help would be greatly appreciated. Martin, https://bugs.launchpad.net/inkscape/+bug/616198

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Object-oriented extension development with play-SVG
by Cosmo Guffa 01 Jul '13

01 Jul '13

Hello developers, I'm writing to announce the recent re-release of play-svg, a set of python libraries aimed at generative and geometry-based coding for creating SVG files: https://github.com/cosmo-guffa/play-svg, with some minimal documention here: http://cosmo-guffa.github.io/play-svg/ . It includes some Inkscape extensions for plotting various geometric objects as well as many more scripts demonstrating its use. Currently the extensions are undocumented, though most of them are pretty self-explanatory in live preview mode. My project went defunct in 2009 when the pyxml libraries got canned. I recently decided to dust the project off and get it back up and running. I noticed the Inkscape community implemented the use of lxml and so I decided to do so as well. I'm realizing that having to install the libraries before using the extensions is an impediment to their use. However, I think that they could serve as a valuable resource for extension developers who want to strip out a lot of the lower-level coding that goes on. Particularly, I've implemented object-oriented creation of paths with some useful helper functions and created an object-oriented interface to creating all svg elements. What I'm wondering is, would it benefit the project to include play-svg and its extensions in Inkscape ? If so, how could they best integrate ? I would like to preserve the ability to import the libraries in stand-alone scripts for those who have already installed Inkscape. What could I do for the project to make it as high-calibre as the Inkscape software itself ? Your feedback would be greatly appreciated :) Sincerely, ~Cosmo

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Tentative patch for downscaling in Cairo
by Krzysztof Kosiński 30 Jun '13

30 Jun '13

Hello I had a look at how complex would it be to add correct downscaling to Cairo now that Pixman supports convolution filters. It turns out it this is rather easy. Here is an initial, minimal attempt. It uses convolution filters only if the image is being downscaled by more than half a pixel in at least one dimension. Some discussion: 1. The sampling and reconstruction kernels are picked in a way that gives comparable quality when upscaling and downscaling. I paired box sampling with bilinear reconstruction and impulse (point) sampling with box reconstruction. This gives the expected result for NEAREST filter. BEST filter uses Lanczos3 for both kernels. 2. Subsampling bits are always set to 1, since this doesn't seem to affect quality at all. 3. I am not sure whether this code works correctly for matrices with a skew component. It should be OK for any combination of scale, rotation and translation. 4. This patch causes new failures in the test suite: - recording-surface*: possibly an effect of improved quality. - surface-pattern-scale-down*, surface-pattern-big-scale-down: the reference images should be updated. - pthread-same-source: I have no idea why this is failing, since this test shouldn't even trigger the new code. - large-source-roi: this test attempts to downscale an image which is 30000 pixels wide down to 7 pixels. The filter parameters seem to be created correctly, but they might trigger an overflow somewhere in the convolution code; the output rectangle is white instead of red, as if nothing was drawn. - device-offset-scale: there are subtle differences which look like convolution-related smoothing; I'm not sure whether this is OK or not. Note that master currently fails many more tests, I only listed new failures cause by this patch. Regards, Krzysztof Kosiński

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Workflow with bazaar and the append-only trunk (used to git)
by Christoffer Holmstedt 30 Jun '13

30 Jun '13

So hopefully I will have access to trunk in a couple of days and before committing directly to trunk I want to confirm that I've understood the workflow with bazaar correctly so I don't mess anything up and make it as easy as possible for me to develop. I use Ubuntu and work from the terminal. I've read the http://wiki.inkscape.org/wiki/index.php/Working_with_Bazaarpage a couple of times trying to figure out exactly what workflow would suit me. The SVN style goes away directly (I want to do everything locally first and push only when I say so). The git-style branches with bazaar seems somehow forced into bazaar and not very appealing to me. I'm left with the branching and pushing...and I can live with the little longer time it takes to branch the big codebase. My questions: 1) The big "gotcha" is that I shouldn't merge trunk into my feature branch and then push back to trunk, is this correct? 2) If I develop a new feature in a separate branch is the following workflow a correct way to get it into trunk? cd trunk bzr pull (get the most reason trunk first) bzr merge ../myproject bzr commit -m "Added myproject" bzr push Regards -- Christoffer Holmstedt

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[Recolor] Weekly Progress #1
by Arshdeep Singh 30 Jun '13

30 Jun '13

Hello devs, I spent the first week researching requisite stuff (more or less) so I am not counting that as the first week. [Making 24th June as the start point]. As planned in the Timeline, I have successfully rewritten the colorwheel code and modified it to a new GUI very similar to that of Adobe Kuler's Editing GUI. Here's a snapshot. What it looked like earlier: [image: Inline image 2] What it looks like now: [image: Inline image 3] Notice the following changes: 1. ) The saturation is now handled by the distance of the node (the hollow circle on the wheel) from the centre. As we move closer to the centre, we get less saturation. 2.) The brightness value is handled by a slider below the Alpha Slider. It automatically paints the Alpha bar accordingly. 3.) Clicking on a new spot on the wheel, moves the node there and repaints the selected object accordingly. The next stage through this week will be adding functionality that if more than one objects on the canvas are selected, the wheel is painted with its respective nodes in the correct color areas. What shall ensue will be adding a inner class/data members of nodes to the color wheel with their appropriate events (dragging, selection, deselction, main_node etc). Your feedback is welcome. :) My development branch can be found at: lp:~moduli16/inkscape/recolor/ -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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[Inskcape-devel][ Recolor ]
by Arshdeep Singh 30 Jun '13

30 Jun '13

I am currently working on retrieving the objects selected on the canvas. Can someone help me with information on how to use getStyleProperty(gchar const *key, gchar const *def) {...} ? I basically need to check if the style is solid fill and then retrieve the color. I tried these variants: 1.) getStyleProperty("fill","1") = gibes me entire style field in XML editor except the 'fill' keyword written. 2) getStyleProperty("color",NULL) : (null) is returned. Thanks. -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Native GUI on OSX
by Aaron Spike 26 Jun '13

26 Jun '13

Hello friends, What is the state of the art regarding a native Inkscape GUI on OSX? Aaron Spike

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[GSOC] Official start of coding
by Tavmjong Bah 25 Jun '13

25 Jun '13

Hi, Today marks the "official" start of GSOC coding. (Of course, there already has been quite a bit of coding taking place on at least one of the projects!) Students: Please check the details on Inkscape's GSOC 2013 page[1] and correct any errors. Also, if you haven't announced where your code repository will be, please do so and fill in the details on this page. From now on, we'll be expecting at least weekly updates on the developer's mailing list. Tav [1] http://wiki.inkscape.org/wiki/index.php?title=Google_Summer_of_Code_2013

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Simple Sketch
by Jabiertxo Arraiza Cenoz 25 Jun '13

25 Jun '13

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My second patch and a general question about inkscape development
by Christoffer Holmstedt 25 Jun '13

25 Jun '13

My second bug fix is available now at https://bugs.launchpad.net/inkscape/+bug/180912 it builds and works just fine but I have one question. I had to include "event-context.h" in "verbs.cpp" and I'm not sure if this coupling is wise to do. Any comments on that? I didn't want to move the special toggling feature for the dropper tool to verbs.cpp mainly due to the space toggling to "select tool" and back would still be in event-context.cpp. During compilation there are a few "unused variable" warnings and other kinds of warnings as well. Within the Inkscape project do you usually file a bug report against this (for keeping track of stuff) and then fix the warning(s) or just fix it? Regards -- Christoffer Holmstedt

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[Templates] Report
by Jan Darowski 25 Jun '13

25 Jun '13

Hi So after the first week of official coding, I've designed and implemented the static templates interface, created the base for the procedural templates interface. This week I'll start working on integrating this dialog into Inkscape and collecting static templates data from files, so next I could integrate real templates with the dialog. Slagvi, Jan Darowski

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Docked Panel heights
by michael grosberg 24 Jun '13

24 Jun '13

I have a recurring problem, which I don't know if I should classify as a bug. Perhaps I'm just missing something. I tend to work with several layers. Usually three, four or five. I also tend to work with several open docked panels - fill&stroke, object properties, align. My recurring problem is that the layers panel tends to compress to a size in which only two layers are visible. If I close or minimize a dock it will always cause the fill&stroke panel to expand unnecessarily - while the layers panel remains too small. Actually any other panel will expand at the expense of the layers panel. If there are more dock than vertical space, and the scrollbar appears, there's still no way of expanding the panel. So, is this something that's it's possible to fix? is it window-manager dependant? (I'm on Windows). Perhaps there's some settings file I can change manually to force it to stay just a little bit larger?

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Help needed with ofset
by Jabiertxo Arraiza Cenoz 23 Jun '13

23 Jun '13

Hi to all, im writina a live-effect that need paralel lines to a SPCurve. I have it working with livarot/path-outline but it give me holes i dont want. In this file there is a coment: /* * the "outliner" * takes a sequence of path commands and produces a set of commands that approximates the offset * result is stored in dest (that paremeter is handed to all the subfunctions) * not that the result is in general not mathematically correct; you can end up with unwanted holes in your * beautiful offset. a better way is to do path->polyline->polygon->offset of polygon->polyline(=contours of the polygon)->path * but computing offsets of the path is faster... */ But im not sure how to do it, i search in sp-polygon.cpp but for now couldent undertand how to do. Thanks in advance, Jabier.

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[Templates]
by Jan Darowski 22 Jun '13

22 Jun '13

Hi! Here is my first progress report. I've been mostly working on understanding gtk and designing some more details about my project. Here is my code branch: https://code.launchpad.net/~slagvi/inkscape/templates I also attach a gui project I made. In fact most of the code responsible for displaying data is already written but if something is not like it should be, please tell me as soon as it's possible. And here is some explanation. I decided to use tags/keywords instead of categories, as it has been suggested by some of you. But there aren't to many keywords or templates, so all the keywords will be displayed in a list. Clicking on one of them makes appropriate templates to be displayed. Of course one template can be tagged by many keywords. Some of you were talking about previous mockups ( http://wiki.inkscape.org/wiki/index.php/NewFromTemplateSpec) flaws. So I tried to make the interface as simple as possible. All the additional data (like long description, translations, used keywords, license etc) are hidden, as most of users won't need them in the everyday use. It will be displayed after "more info" clicking. What is not in this image, is a short description of the template and its preview. I'm still not sure if preview is a good idea. In most cases it will be just a blank, white page of different sizes... Short description will be added. Procedural templates will have the two first columns the same, the third will be completely different but i will start thinking about it after static templates are ready. Please, tell me if its correct, so I could make it work on real templates. I would also like to ask for a wiki account, as it would be better to update all the templates specification via wiki page, so they would be visible for everybody, all the time. Jan Darowski, Slagvi

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extension parameter type
by Robert Petersen 22 Jun '13

22 Jun '13

I've looked around be can't find a definitive answer to this question. Is there a parameter type for inkscape extensions that would present the user with a multi-line input. The type "string" presents a single line that doesn't respond to pressing "enter" to generate a newline. Thanks, Robert

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Is Inkscape the wrong tool for what I am trying to do?
by Paul Beard 21 Jun '13

21 Jun '13

Maybe sounds like more of a philosophical question that related to development but there are some things Inkscape does that I either don't understand or that work in ways that are counter to what I want. I seem to have recurring problems with object dimensions changing. This is a problem as I am doing what might charitably be described as mechanical drawings, parts that need to fit together with some precision once they're made into physical objects. I can create an object of some specified dimension (100mm by 100mm) and come back later to find that it's 100.107mm or something. I'm going to see if I can find out what it takes to repro this and file a bug against it if I can make it happen. I also don't get why the stroke and dimensions are summed in the toolbar that specifies the size of an object. I generally work in outline view with stroke turned off because I don't like that adding a stroke value to an object also changes it's dimension. I'm slowing coming to rethink this as the stroke being the cutter width or kerf, which is useful but if I then have to contend with shifting dimensions, it gets frustrating. Is there a way to break apart the dimensions of the an object from it's stroke values? Or maybe a toggle that displays the true dimensions and display the stroke and fill for visual reference/clarity? It would useful to work in Normal view and have the colors there but the dimensions then become a problem. If I specify a 3mm opening and 3mm component to go in it, I want those numbers to display while I work. Maybe Inkscape is the wrong choice for me. I like the ease of use/low barrier to entry and getting things done, and the price is definitely right. But maybe I'm making work for myself. -- Paul Beard This space intentionally left blank.

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[CAD] Status report
by Sebastian Götte 21 Jun '13

21 Jun '13

Hi, On 06/20/2013 09:41 AM, Tavmjong Bah wrote: > Can you give us a status report? It doesn't have to be long. Also, have > you created a repository for your code? I'm sorry for the late reply. Here's the current state: * I dug throuh pretty much all the code around connectors. I will not re-write anything as I think Martin proposed at some point, but instead build upon the existing code. * Doug Schepers told me he wants to get another draft of the SVG Connectors spec out this week * I created a new class (SPConnector) representing a Connector object. * I am currently trying to separate the currently hard-coded glue between Inkscape and Libavoid into a small number of subclasses of SPConnector, one for each connector routing type. I created a branch on Launchpad at https://code.launchpad.net/~h-e-6/inkscape/connector-wip . There is not anything up yet since I am still coding, but I will push my changes as soon as they have assumed a distantly coherent shape. Regards, Sebastian

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[Units] Existing Unit Support
by Matthew Petroff 21 Jun '13

21 Jun '13

Over the past two weeks, I have looked at Inkscape's code, outlined existing unit support, and planned my approach to refactoring it. http://www.mpetroff.net/archives/2013/06/17/current-state-of-units/ -Matthew

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Ungrouping SVG
by Martin Owens 20 Jun '13

20 Jun '13

Hey Lauris, I'm fixing https://bugs.launchpad.net/inkscape/+bug/166327 and I have to commit code which goes directly against your comment in the code: 787 /* We do not allow ungrouping <svg> etc. (lauris) */ 788 if (strcmp(group->getRepr()->name(), "svg:g") && strcmp(group->getRepr()->name(), "svg:switch")) { Since I'm enabling the ungrouping of svg elements, I have to ask why we may not want to be able to upgroup svg elements. Should we check for element->parent != NULL here to make sure we don't ungroup the top-level element by mistake? Martin,

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[inkscape-devel][Recolor]Colorwheel Alpha Bar
by Arshdeep Singh 20 Jun '13

20 Jun '13

Hello devs, I have succesfully reached a considerable milestone in modifying the current colorwheel in my branch. It now looks like this: [image: Inline image 1] I need to add a 'Lightness' value bar similar to the Alpha bar in the wheel GUI. I am having trouble finding the code that does that ! Been stuck on it for a day, can't afford to lose more time on this. Can anyone help ? - Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Shortcut for Object > Clip > Set
by Javier Garcia 18 Jun '13

18 Jun '13

Hi, Could you add a shorcut for that? Regards Javi

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Q: How to Generate a Rotated linearGradient whose angle will stick?
by Shlomi Fish 17 Jun '13

17 Jun '13

Hi all, I am resending this to the *-devel list due to getting now answers on the user list and someone suggesting on the list that I send it here. --------------------------------------------------- Q: in my extension I have this: class StyleEffect(GenericAddPathEffect): def effect(self): self.xpathSingle(u'svg:defs').insert(0, inkex.etree.XML('''<svg:linearGradient xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" id="bk2hp_grad"> <stop style="stop-color:#0000ff;stop-opacity:1" offset="0" id="b2h_0" /> <stop style="stop-color:#00deff;stop-opacity:1" offset="0.4" id="b2h_1" /> <stop style="stop-color:#00deff;stop-opacity:1" offset="0.6" id="b2h_2" /> <stop style="stop-color:#0000ff;stop-opacity:1" offset="1" id="b2h_3" /> </svg:linearGradient>''') ) self.xpathSingle(u'svg:defs').insert(1, inkex.etree.XML('''<svg:linearGradient xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="bk2hp_grad_rot" gradientTransform="rotate(90)" xlink:href="#bk2hp_grad" />''') ) self.xpathSingle(u'//*[@id="' + main_path_id() + '"]').set( 'style', simplestyle.formatStyle({ 'stroke': '#888888', 'stroke-width': '1pt', 'fill': 'url(#bk2hp_grad_rot)', } )) Which generates a linearGradient and a rotated version of it. However, when I move the path filled with the rotation, it reverts to the non-rotated version. I'm attaching it here. Why is Inkscape doing it? Is it a bug? You can find the extension in question here: https://github.com/shlomif/Shlomi-Fish-Back-to-my-Homepage-Logo/blob/master… Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ NSA Factoids - http://www.shlomifish.org/humour/bits/facts/NSA/ If the mountain will not come to Muhammad, then Muhammad will go to the mountain. — Francis Bacon Please reply to list if it's a mailing list post - http://shlom.in/reply .

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Markers, a note about Rev 12363
by Martin Owens 16 Jun '13

16 Jun '13

Dear Devs, I've just pushed revision 12363, it includes a simple but user-facing change to the markers in the stroke-dialog which puts them all on one line and removes the drop down label. Now looks like this: http://imagebin.org/261038 I decided to keep the label row data for MarkerCombo for posterity, but remove the display function. I also used the hbox which cut down dramatically on lines since hbox use is the same between gtk2 and 3. I didn't compile with gtk3, but I expect it to work. Please let me know if there are any problems you have with the change. I decided to implement to favored design change after reviewing the feedback on a group of design changes for the stroke dialog. Other designs didn't make the grade so I've left those out. Best Regards, Martin Owens

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Selection and Symbols
by Martin Owens 16 Jun '13

16 Jun '13

Dear Devs, I'm still working on this UI update for symbols. It's mostly working now, with the exception of the UNSYMBOL verb which as originally implemented required a use element be selection which referenced the right symbol. To fix this weirdness, I wanted to try out an idea. What if selecting a symbol in the TreeView on the right changed the currentDesktop->selection too. Then the verb could act on the selected item directly and as an added bonus, there's a conceptual way to select defs and maybe act on them in the future functionality or plugins (imagine a plugin that acted on a symbol, cool). Only problem is, it also creates a bounding box on the canvas of where the group used to be, with transform handles and everything (which was fun to poke to see what would happen). Before I go down a rabbit hole, I wanted to check in with the team about what the best way to select items would be and if defs should or should not ever be selected in this manner (I'm looking at you xml-tree-editor). Thanks for the advice, Best Regards, Martin Owens

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[Tracing] First steps/progress and some images
by Vinícius dos Santos Oliveira 16 Jun '13

16 Jun '13

Hello ppl, I just finished the task for week 2 from my proposed timeline<http://www.google-melange.com/gsoc/project/google/gsoc2013/vinipsmaker/48002>. This task was related to create a graph from an input image. This graph will be used by later steps in the Kopf/Lischinski algorithm. I'm attaching a zip file containing 4 input images and a set of output images representing the intermediate steps of the graph generation. There is a README.txt file inside this zip with further information. The next step of the algorithm is to improve this graph further more with three heuristics. I'll try to implement this step during the next two weeks. If you have any question, just ask and I'll be happy to answer your question. -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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[Recolor] Re-painting the 'gimpcolorwheel'
by Arshdeep Singh 15 Jun '13

15 Jun '13

Hello devs, My current state of the wheel looks like this: [image: Inline image 1] I want a white center that blends into the respective colors towards the circumference. Here's a snippet from gimpcolorwheel.c *Function :* static void paint_ring (GimpColorWheel *wheel, cairo_t *cr) { ...} Snippet: *for (yy = 0; yy < height; yy++)* * {* * p = buf + yy * width;* * dy = -(yy - center_y);* * * * for (xx = 0; xx < width; xx++)* * {* * dx = xx - center_x;* * * * dist = dx * dx + dy * dy;* * if (dist < ((inner-1) * (inner-1)) || dist > ((outer+1) * (outer+1)))* * {* * *p++ = 0;* * continue;* * }* * * * angle = atan2 (dy, dx);* * if (angle < 0.0)* * angle += 2.0 * G_PI;* * * * hue = angle / (2.0 * G_PI);* * * * r = hue;* * g = 1.0;* * b = 1.0;* * hsv_to_rgb (&r, &g, &b);* * * * *p++ = (((int)floor (r * 255 + 0.5) << 16) |* * ((int)floor (g * 255 + 0.5) << 8) |* * (int)floor (b * 255 + 0.5));* * }* * }* * * this paints the colors of the wheel. Because we need to paint the center white, we have two options: ( I suppose ? ) One is to include a distance from the center that shall be the faintest white from the center We can choose this distance to be 20% of the radius allocated. This white coloration can be accommodated into the above snippet but what I fail to solve is how to add the transparency ? Should I calculate a separate 'buf' that is then OR-ed (overlaid) with the 'p' buffer to create that effect ? OR I can create a smaller circular arc and use radial gradient (white at center and transparent at circumference , radius again 20% ) and overlay onto the same surface used to draw the initial color wheel as shown in the picture above. I personally feel, the second option is easier because the first option would require to know how rgb changes when a certain degree of white is added to it. Your views are looked forward to. Thanks. -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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[Recolor]
by Arshdeep Singh 15 Jun '13

15 Jun '13

Hello, This email is to declare my public branch for my Recolor Artwork Tool Project in GSoC 2013: https://code.launchpad.net/~moduli16/inkscape/recolor I am working on collecting the requisite information before finally diving into the coding. :) The first task is to build upon the current colorwheel used by inkscape (gimpcolorwheel.c) for extended utility functions for the purpose of my project. :) Thanks. -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Ubuntu installation error
by Susan Spencer 14 Jun '13

14 Jun '13

Today's Inkscape update resulted in an error on my laptop with Ubuntu 12.04. If no one else can corroborate problems with today's Ubuntu Software Center Inkscape update then I won't post it on Launchpad. It's entirely possible that it's my specific installation of Inkscape, given the recent problem with outsets/insets after installing nightly build/uninstalling/reinstalling from Ubuntu ppa. (That problem went away sometime during the past week.) So, anybody else get this on Ubuntu 12.04 (or other Ubuntu version) during today's Software Center package update? *installArchives() failed: (Reading database ... * *(Reading database ... 5%%* *(Reading database ... 10%%* *(Reading database ... 15%%* *(Reading database ... 20%%* *(Reading database ... 25%%* *(Reading database ... 30%%* *(Reading database ... 35%%* *(Reading database ... 40%%* *(Reading database ... 45%%* *(Reading database ... 50%%* *(Reading database ... 55%%* *(Reading database ... 60%%* *(Reading database ... 65%%* *(Reading database ... 70%%* *(Reading database ... 75%%* *(Reading database ... 80%%* *(Reading database ... 85%%* *(Reading database ... 90%%* *(Reading database ... 95%%* *(Reading database ... 100%%* *(Reading database ... 877256 files and directories currently installed.)* *Preparing to replace inkscape 0.49~devel+12362+11~precise1 (using .../inkscape_0.49~devel+12370+11~precise1_i386.deb) ...* *Unpacking replacement inkscape ...* *Preparing to replace telepathy-gabble 0.16.0-0ubuntu3 (using .../telepathy-gabble_0.16.0-0ubuntu3.1_i386.deb) ...* *Unpacking replacement telepathy-gabble ...* *Processing triggers for man-db ...* *Processing triggers for hicolor-icon-theme ...* *Processing triggers for bamfdaemon ...* *Rebuilding /usr/share/applications/bamf.index...* *Processing triggers for desktop-file-utils ...* *Processing triggers for gnome-menus ...* *Setting up knotter (0.9.3-2) ...* */var/lib/dpkg/info/knotter.postinst: 3: /var/lib/dpkg/info/knotter.postinst: update-menus: not found* *dpkg: error processing knotter (--configure):* * subprocess installed post-installation script returned error exit status 127* *Setting up inkscape (0.49~devel+12370+11~precise1) ...* *No apport report written because MaxReports is reached already* *Setting up telepathy-gabble (0.16.0-0ubuntu3.1) ...* *Processing triggers for libc-bin ...* *ldconfig deferred processing now taking place* *Errors were encountered while processing:* * knotter* *Error in function: * *Setting up knotter (0.9.3-2) ...* */var/lib/dpkg/info/knotter.postinst: 3: /var/lib/dpkg/info/knotter.postinst: update-menus: not found* *dpkg: error processing knotter (--configure):* * subprocess installed post-installation script returned error exit status 127* * * - Susan

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Adding MIME data and type to images in cairo-renderer
by François Bianco 13 Jun '13

13 Jun '13

Hello, I started to work on a patch for Inkscape to be able to export embedded or linked image in SVG to be exported in PDF with their correct MIME type and original raw data. Current code is exporting JPG file to bitmap file by storing the gdk pixbuf data, which results in heavy PDF files. I am still struggling with the cairo-renderer code to fully understand it. Two bugs related to the issue, I mentionned: https://bugs.launchpad.net/inkscape/+bug/168708 https://bugzilla.mozilla.org/show_bug.cgi?id=612844 Please find attached my patch for a first step toward this new feature. Note, currently it is only written for JPG file. I'll add later a way to correctly work out the MIME type of images. I am now able to add the original MIME data on the cairo_image_surface with 'cairo_surface_set_mime_data'. But apparently the rest of the exporter code is redrawing the surface which causes the original data to be dropped, and the JPG images are still stored as bitmaps in the final PDF. According to Cairo doc on MIME data : "Caution: the associated MIME data will be discarded if you draw on the surface afterwards." I do not find which part of the renderer code is redrawing the image surface. Could one of you help me with this issue which would fix an annoying bug ? Related to that. I wrote/modified a minimal test example with cairo which works nicely to export JPG file in PDF, see related discussion on Cairo: http://lists.cairographics.org/archives/cairo/2013-June/024372.html Thanks for your help, François Bianco

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[Recolor]
by Arshdeep Singh 12 Jun '13

12 Jun '13

Hello all, I already have a working copy of Inkscape. How do I link my launchpad account to it ? Will I need to 'checkout lp:inkscape' again ? Basically, I have little information on how to announce a public branch for my project. Can anyone advise something ? -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Re: [Inkscape-devel] Regarding Bug 357043
by Martin Owens 12 Jun '13

12 Jun '13

Thanks Gerald and SOIX developers, Headers changed, Bug fixed. Bed Time. Martin, On Tue, 2013-06-11 at 23:39 -0400, Gerald Friedland wrote: > This is in response to a discussion on bug #357043. > > The developers of the Java version of SIOX are in the FROM: or in the > CC: of this email and, as discussed below, we are giving developers > the option to either apply Apache License to the code or GNU GPL. > > If the Inkscape version were derived from the GIMP implementation > (which I am not sure about), which is co-authored with developers of > the GIMP community then the license would have to be GPL (and not > Apache). > > In any case, GNU GPL is fine.

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Re: [Inkscape-devel] Inkscape-devel Digest, Vol 85, Issue 8
by Jelle Mulder 11 Jun '13

11 Jun '13

Hello Vincius, While reading this I came to this thought. How far fetched would it be to instead of square pixels, enable it to turn them into arbitrary shapes? I am thinking of diamonds, stars, circles etc. And when following this line of thought, how feasible would it be to create 4 (or more) layers of color like the old fashioned color separation rasters. No doubt it would be heavy on the machine handling loads of objects, but it would enable us designers to play around with moire and color separation layers. It would certainly be worth the wait of generating this kind of stuff and bring it to a printer. Weighting the pixels colours and resizing the object to that weight should be fairly straightforward. Set these object as <use> clones with the weight of the colour and drop the result in 4 layers with a slight offset (thinking of CMYK simulation here). I don't want to keep you from your task with this fantasy, but it would be way cool and something that would make your pixelation scan really useful to me and probably others. So first set yourself to the task at hand, but maybe if you have some time left and are still inspired you could play around with this idea. In any case thanks for the effort you put into this wonderful application and making it even better. That goes for all people involved in this project b.t.w. I thoroughly enjoy working with Inkscape which can match itself in many respects with commercial applications and in quite a few surpasses them. Cheers, Jelle Mulder > 2. Re: [Tracing] First steps/progress and some images > (Jabiertxo Arraiza Cenoz) Message: 2 Date: Mon, 10 Jun 2013 14:38:59 +0200 From: Jabiertxo Arraiza Cenoz <jabier.arraiza@...2893...> Subject: Re: [Inkscape-devel] [Tracing] First steps/progress and some images To: inkscape-devel(a)lists.sourceforge.net Message-ID: <1370867939.22535.8.camel@...2894...> Content-Type: text/plain; charset="UTF-8" Impresionant work, but it make some unhappy. love the pixels circular, rouded, with some margin to make crayzy effect y love... but the work is the work. El vie, 07-06-2013 a las 20:45 -0300, Vin?cius dos Santos Oliveira escribi?: > Hello ppl, > I just finished the task for week 2 from my proposed timeline. This > task was related to create a graph from an input image. This graph > will be used by later steps in the Kopf/Lischinski algorithm. > I'm attaching a zip file containing 4 input images and a set of output > images representing the intermediate steps of the graph generation. > There is a README.txt file inside this zip with further information. > The next step of the algorithm is to improve this graph further more > with three heuristics. I'll try to implement this step during the next > two weeks. > If you have any question, just ask and I'll be happy to answer your > question. > --Vin?cius dos Santos Oliveira > https://about.me/vinipsmaker > > ------------------------------------------------------------------------------ > How ServiceNow helps IT people transform IT departments: > 1. A cloud service to automate IT design, transition and operations > 2. Dashboards that offer high-level views of enterprise services > 3. A single system of record for all IT processes > http://p.sf.net/sfu/servicenow-d2d-j > _______________________________________________ Inkscape-devel mailing > list Inkscape-devel(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/inkscape-devel

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Warnings During CMake/ninja Compilation of inkscape-trunk
by Shlomi Fish 11 Jun '13

11 Jun '13

Hi all, After I ran CMake using: <<< #!/bin/bash cmake -G Ninja -DCMAKE_INSTALL_PREFIX="$HOME/apps/graphics/inkscape-trunk" -DENABLE_LCMS=OFF -DCMAKE_CXX_FLAGS="-fpermissive" -DENABLE_POPPLER=OFF -DENABLE_POPPLER_CAIRO=OFF ../inkscape/ >>> "ninja" emits the attached output with many warnings. I was told to write about that to the list. I'm on Mageia Linux 3/x86-64 . Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ http://www.shlomifish.org/humour/bits/Can-I-SCO-Now/ - "Can I SCO Now?" Officer: Captain, there’s a new star system a few thousands of lightyears away, and its sun has an irregular shape. — http://www.shlomifish.org/humour/Star-Trek/We-the-Living-Dead/ Please reply to list if it's a mailing list post - http://shlom.in/reply .

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Safely mixing C/C++ bindings for GNOME libraries
by Alex Valavanis 07 Jun '13

07 Jun '13

Hi All, Just a quick note about a common source of build failures (e.g., bug #112274) [1]. Basically, we disable the use of deprecated GNOME library symbols wherever possible so that we can avoid big API migration projects in future. A common problem, however, is that some of the C++ bindings (e.g., glibmm and gtkmm) use some of those deprecated symbols! In other words: Inkscape ----> glibmm ----> deprecated stuff in glib \---> glib \---> gtkmm ----> deprecated stuff in gtk+ \---> gtk+ So, even though we don't use deprecated stuff ourselves, we still need to take a little care with this! The solution is to ** Ensure that high-level dependencies are included in our source before low-level dependencies ** For example, the Glib::Thread API in glibmm depends on deprecated GThread stuff in glib. We will get a build failure if we do the following... #include <glib.h> #include <glibmm/threads.h> This is because the deprecated GThread stuff in <glib.h> will be hidden by the C++ preprocessor. When <glibmm/threads.h> is subsequently included, GThread stuff will therefore appear to be undeclared and we get an error like this: /usr/include/glibmm-2.4/threads.h:142:11: error: field ‘gobject_’ has incomplete type /usr/include/glibmm-2.4/glibmm/threads.h: In member function ‘GThread* Glib::Threads::Thread::gobj()’: The solution is to do the inclusions in this order: #include <glibmm/threads.h> #include <glib.h> This now compiles correctly because when <glibmm/threads.h> itself includes <glib.h>, it temporarily re-enables the deprecated stuff, uses it, and then disables it again. A couple of additional notes: 1. There's actually no need to #include <glib.h> after one of the <glibmm/*.h> headers... it is already pulled into our source by the glibmm header! 2. Remember that you have to avoid *any* inclusion on <glib.h> before using a <glibmm/*.h> header. As such, it's safest to just put the C++ headers at the top of any source file: i.e., // Gtkmm/Glibmm headers first... #include <gtkmm/aaa.h> #include <gtkmm/bbb.h> #include <glibmm/ccc.h> #include <glibmm/ddd.h> // Now include Inkscape stuff... #include "ui/dialog/wibble.h" #include "ui/dialog/wobble.h" 3. Ultimately, we can probably get rid of all direct usage of <glib.h> and Gtk+ headers and replace them with their respective C++ binding headers. Cheers, AV [1] https://bugs.launchpad.net/inkscape/+bug/1122774

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Outset/Inset problems - bug or not?
by Susan Spencer 07 Jun '13

07 Jun '13

I have Ubuntu 12.04 and Inkscape 0.48+devel r12347 Two weeks ago I installed the nightly build from Inkscape, then decided against it and uninstalled/reinstalled Inkscape from Ubuntu software center. Since then the outset/inset function has generated incorrect results for some shapes. Here's a link to a file which demonstrates this problem: https://docs.google.com/file/d/0BxsnjDIHW4yvRGRhYkVEa0E2UVk/edit?usp=sharing Is this a bug or has my current installation gone awry? Thanks for any feedback on this issue! - Susan

1 0

dealing with broken external functions
by Paul Beard 06 Jun '13

06 Jun '13

After being told that the changes to a bug report aren't valid*, I decided to look into how hard it is to simply take broken functions off the menu, from the user perspective. > To remove the plt conversion as an option, I found that simply moving the Contents/Resources/extensions/plt* files to a subdirectory took them off the menu in the save dialog. For whatever reason, the HPGL and SK1 conversions work and I assume they draw on the same libraries. > > That seems to be the simplest solution to the frustration of seeing features you can't use. No changes to executables or removal of dependencies, just making a broken option invisible. If it gets fixed at a later date, an update script or a new point release could be made available. > I'm sure this seems like a trivial issue for most, but if broken dependencies/features illuminate why the OS X releases are out of sync with Windows and linux, it seems relevant. I don't see why an external function should add to any delay in getting a release out the door, if references to it can be easily removed and restored. I thank the developer(s) who persevered and built these Inkscape RCs, not only as updates but making it into a full OS X app, getting away from X-Windows. * https://bugs.launchpad.net/inkscape/+bug/1187197 -- Paul Beard Are you trying to win an argument or solve a problem?

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Re: [Inkscape-devel] [cairo] Tentative patch for downscaling in Cairo
by Krzysztof Kosiński 06 Jun '13

06 Jun '13

2013/6/4 Chris Wilson <chris@...2923...>: > On Sun, Mar 31, 2013 at 05:03:36AM +0200, Krzysztof Kosiński wrote: >> Hello >> >> I had a look at how complex would it be to add correct downscaling to >> Cairo now that Pixman supports convolution filters. It turns out it >> this is rather easy. Here is an initial, minimal attempt. It uses >> convolution filters only if the image is being downscaled by more than >> half a pixel in at least one dimension. > > Looks very nice. My plan at the moment is to finish a bugfix 1.12 > release, then start on 1.14 to add some new API. This improvement would > be better in a major release, so I'll add it then. Great! Having proper downscaling in Cairo would really make our life easier :) >> Some discussion: >> >> 1. The sampling and reconstruction kernels are picked in a way that >> gives comparable quality when upscaling and downscaling. I paired box >> sampling with bilinear reconstruction and impulse (point) sampling >> with box reconstruction. This gives the expected result for NEAREST >> filter. BEST filter uses Lanczos3 for both kernels. > > Do we need to use a reconstruction filter for NEAREST at all? Or maybe > differentiate between NEAREST and FAST in that case? If impulse (point) sampling is used, there must be some reconstruction filter, otherwise no image is produced. That's because the sampling grid does not match the data grid, and since there is no reconstruction filter, values between data points are undefined. The alternative is to use box sampling + no reconstruction. Regards, Krzysztof

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[Units] Unit Refactor
by Matthew Petroff 05 Jun '13

05 Jun '13

I am going to working on refactoring and then improving Inkscape's unit handling this summer for Google Summer of Code. I plan on posting regular progress updates on my blog [1] and summaries of the updates here. I have branched the repository for the first phase of my project [2] and will merge the changes back into the trunk once it is done and create a new branch for the second phase. I look forward to working with the Inkscape community this summer. -Matthew [1] http://www.mpetroff.net/archives/category/programming/gsoc/ [2] https://code.launchpad.net/~matthewpetroff/inkscape/gsoc-2013-unit-refactor

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SVG vs. EMF+
by mathog 05 Jun '13

05 Jun '13

Hi all, I'm having a look through EMF+, which is the metafile type corresponding to GDI+, to see what is in it that would add SVG features not currently representable in EMF (vanilla GDI). So far... These would be worth having: 1. Objects with colors that are RGB + Alpha. GDI uses only RGB and mixing operators to emulate opacity, the mixing operators are complex and I did not implement 99% of that in the present EMF input/output code. 2. Gradients. EMF has gradients, but the rectangular gradient record is apparently toxic - I have yet to find an application, including from Microsoft that can accept one. The majority of programs that write EMF files work around this by writing scads of tiny rectangles to emulate the gradient. (By majority I mean no programs, other than the ones I wrote, generate EMF gradient records.) Possibly the EMF+ gradients are not toxic so input/output of SVG gradients can stay as gradients and not have to be emulated. 3. Expanded hatch patterns (up from 7 in GDI [essentially] to 52). 4. Custom line caps. It is not clear to me how many of the other features in GDI+ have SVG equivalents. For instance: 5. Compound lines. GDI+ can draw a line with what is essentially a row of pens of various widths. Define a pen with a narrow stroke, space, wide stroke, space, narrow stroke, and draw a rectangle, and the result is a set of 3 nested rectangles, with a fat central stroke and thinner strokes inside and outside of it. Can SVG do this? I'm thinking one would have to import this in a loop, and create the rectangles one by one with the appropriate "sub" pen. 6. Clipping regions can be combined with XOR, UNION, INTERSECT and so forth. However, I do not recall in the present EMF output that clipping information is passed into the driver. Rather I vaguely recall that it was applied many levels above and the clipped shape is what is sent to the output driver. Other than for clipping there does not seem to be a way to create compound regions using these operators. I don't think SVG has these operators for general shapes either. Inkscape performs these operations on paths, but just puts the combined path in the SVG. 7. Graphics containers. Apparently the point of these is to provide a way to segregate high cost operations (like antialiasing) from low cost ones (a normal draw). So on one screen set up different containers and the quality sensitive ones are sent into the high cost container, while everything else goes into the lost container. For a Metafile this makes no sense, we are not interested in real time performance, and all objects should remain high quality. 8. Gradient curves. GDI+ does this by specifying an array of points (the curve) and a corresponding array of colors, and then some rules about how to interpolate colors. (Fill is another story, that uses a brush with a defined gradient.) I could not find an example of SVG stroking a gradient curve like this, other than by breaking it down into a series of separate line segments of slowly varying color. One thing that is definitely not a step in the right direction EMF to EMF+, at least in terms of dealing with the resulting metafile: 9. Remarkably few EMF+ objects and records have a fixed size. There are so many "optional" and "variable" fields that most objects and records cannot be represented with a struct. There were some complex EMF records, as for image storage, that were like this, but most EMF records had a fixed memory layout, so one could map a pointer in memory to a struct, and then just reference the values in that record by field names. That rarely works for EMF+ records. Regards, David Mathog mathog@...1176... Manager, Sequence Analysis Facility, Biology Division, Caltech

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[ReColor] GSoc 2013
by Arshdeep Singh 04 Jun '13

04 Jun '13

Hello all, I am very excited to be on board. Sorry for the late reply, I had some formalities to complete at my University post my end semester exams. I shall begin my requisite research for the project in one-two days. -- Arshdeep Singh (demicoder) Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

1 0

Additional pdf type for export.
by john Culleton 03 Jun '13

03 Jun '13

It would help if Inkscape could produce a pdf file in the PDF X-3 format. That gets around the CMYK problem insofar as many printers have new printer and prepress software (e.g., LSI, Brandt-Doubleday) that will handle the conversion automatically from RGB to CMYK. I can always import into Scribus and then export in PDF X-3 but that is an extra step. -- John Culleton Wexford Press Free list of books for self-publishers: http://wexfordpress.net/shortlist.html PDF e-book: "Create Book Covers with Scribus" available at http://www.booklocker.com/books/4055.html

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Re: [Inkscape-devel] GSoC 2013: Implement a new raster-to-vector algorithm...
by Vinícius dos Santos Oliveira 31 May '13

31 May '13

2013/5/31 Martin Sucha <martin.sucha-inkscape@...2313...> > What about something like libdepixelize? Although the name does not > exactly mention pixel art, it seems it does not yield any hits in google > yet. My concern was about the name of the symbols/variables/classes/..., not the library per se. The library could implement (as you stated) other algorithms in future and should use a generic name. The potrace tool ( http://potrace.sourceforge.net/ ) uses the name tracing to refer to this technique. I like both names (libtracer, libdepixelize) and other names also (libvectorizer) and whatever you guys choose is fine to me. -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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Re: [Inkscape-devel] New Inkscape Website (Staging)
by Martin Owens 31 May '13

31 May '13

Nicolas, Thanks for getting back to me with some fantastic questions. I've pushed the conversation to the inkscape developer mailing list so others can stay up to date and offer their ideas. ... On Fri, 2013-05-31 at 14:34 +0100, Nicolas Dufour wrote: > I've started to work on translating pages and parts of the UI. > Django-CMS is a bit complex and its website documentation somewhat > cryptic, but it looks very interesting, and quite convenient for a > translator. It can take one like that. The template formula for including blocks of CMSable widgets is something that may require refinement as we go forwards. Especially for the front page. For now, we're using the most basic formulations. > I've just added a bug report about translated menus that are split in > two lines and cause some issues > (https://bugs.launchpad.net/inkscape-web/+bug/1186235). It's a very > annoying problem, but I'm sure it won't be too difficult to solve. I > also have some questions: I saw the problem with the french menu and have already contacted the designer and some other people to help solve the issue. There has been no response as of yet, partly because of classes/exams. If anyone else wishes to help solve the bug, please see the developers link below. > * Regarding static content, we currently have some pages (tutorials > and keys and mouse references) that are generated externally (see > https://launchpad.net/inkscape-docs). How should we handle them? Note > that the keys and mouse references are linked directly in the > application and thus should be accessible from exactly the same > localized URL (for French: http://inkscape.org/doc/keys048.fr.html). I didn't know about the generative content, that's quite interesting. We could either insert the generated content into the right cms widget items, or do something else. It depends if we want the content committed to bzr or just in the database with other content. > * How will the news be managed? I see nothing about it on the website, > but I guess that's something that won't be abandoned. The news module is operational, but it has two big caveats: 1. English only, 2. No on-site editing. Thus as the technical lead, I intend to replace the news module with a newly written one which has both multi-language and onsite editing. > * The French menu is exactly as defined in > http://staging.inkscape.org/fr/admin/cms/page/, but it's not the case > with the other languages. Is the menu order language-dependent? The CMS seems to order the menu according to how much has been translated and which menu was edited last. It is not idea, but a fix would require patching upstream. > * Apparently, the website is synchronized to the LP code manually > (I've ported images for the books page, but they are not on-line yet). > Do you plan to give update access to someone else, or do you prefer > that we ask you every time we something is committed. The cron jobs are not complete, there is a bug report assigned to me. Images should actually be uploaded via the CMS unless they are non-content images for use in the style/theme of the website. I may have to reverse your commit for now. If you get stuck adding images, let me know and we'll figure it out together. > Apart from it, I'd like to run a local version of the website for > testing purposes. SQLite, Django, Django CMS and the dependencies are > installed on my computer, but I still have difficulties with the CMS > modules (Error: No module named cmsplugin_news, or Error: No module > named cms.plugins.twitter if I comment the cmsplugin_news line). Do > you have some documentation on how to run it (the README file didn't > help)? I'm new to Django CMS, and not very experienced with Django and > I've probably missed something obvious... If not, I'll try to search > the web, there should be some tips somewhere. Absolutely, at the bottom of the website there's a link "Website development guide:" to this wiki page: http://wiki.inkscape.org/wiki/index.php/WebSite and by following this guide we hope, the website should work locally for development. This also includes bringing in the data from the staging website, since the cms would be empty otherwise. Please continue to report bugs and press the website further :-) Best Regards, Martin Owens

1 0

I have a faster, SIMD IIR filter implementation, but have accuracy problems
by Yale Zhang 29 May '13

29 May '13

All, I have ported the IIR filter implementation to use SSE intrinsics and have achieved a 2.5x speedup so far. But I'm having accuracy problems for large blurs due to using single precision instead of double. I've attached examples outputs that blurs a box with several sizes. For sigma=120, the annoying mach bands start getting noticeable. At sigma=200, it looks very bad, and at 350, you might as well use it as a sharpen filter :) This is the first graphics application I've seen where single precision isn't enough. Is the reason due to the recursive behavior of IIR (more accumulation of error) ? Basically, for large blurs (stdev > 100), 24 bits of precision isn't sufficient and you end up getting very annoying mach bands. For sigma = 100, the filter coefficients are: b[0] = 0.00000387430191040 b[1] = 2.96391582489013672 b[2] = -2.92843437194824219 b[3] = 0.96451467275619507 If I add b[0] to the other terms last (b[1] + b[2] + b[3]) + b[0], (earlier, when I added the b[0] term to b[1], the accuracy was even worse as expected), the alignment of the operands in binary is approximately: 1.00000000000000000000000 0.00000000000000000100000 meaning the addition loses a lot of the b[0] term's precision. Can anyone suggest how to proceed next and how useful you think this speedup is? (for me it's a moderate improvement because in my comic, I use marble and brick textures for the walls and floors - I also vectorized the turbulence generator). I would like to avoid using double precision since SSE supports only 2 doubles per operation instead of 4 floats. The things I thought about of trying next are: 1. Use int32 arithmetic (that would add 9 extra bits of precision) 2. Use 4 taps instead of 3. Would this really help? I don't know much about IIR filter design. Can someone give me the coefficient formula for 4 taps? Thanks for helping, Yale

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[CAD] Connectors and Symbols
by Martin Owens 29 May '13

29 May '13

Dear Sebastian Götte and Tavmjong Bah, I'm working on these two items most keenly too, I would like to participate in code review as well as design review for the blueprints etc. The codebases for both items are not super big so I'd like to make sure we don't start committing over each other since the GSoC projects are nominally forked. I have a UI change for symbols which is waiting merge. I'm also interested in the design of the connectors since I know we all have different ideas about how it should be done (elements vs attributes, children vs groups). I'm not sure of the scope yet of the CAD work for 2013, can someone link me to the blueprint? Best Regards, Martin Owens

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Reports with patches pending code review (two-patch-rule / GSoC 2013)
by ~suv 29 May '13

29 May '13

Reports with patches pending code review (two-patch-rule / GSoC 2013) Status 2013-04-30 19:00 +0100: ============================== - Bug #181493: Locked layers not completely locked https://bugs.launchpad.net/inkscape/+bug/181493 - Bug #388684: auto-name duplicate objects https://bugs.launchpad.net/inkscape/+bug/388684 (no patch yet) - Bug #525508: Rotation step 22.5 https://bugs.launchpad.net/inkscape/+bug/525508 (committed) - Bug #830663: default window size too small https://bugs.launchpad.net/inkscape/+bug/830663 - Bug #448728: default preferences window size too small https://bugs.launchpad.net/inkscape/+bug/448728 - Bug #587729: Missing tweak tool cursor symbols https://bugs.launchpad.net/inkscape/+bug/587729 - Bug #180912: Dropper tool overrides keyboard shortcut https://bugs.launchpad.net/inkscape/+bug/180912 - Bug #773288: Document Properties > Page Border https://bugs.launchpad.net/inkscape/+bug/773288 (committed) - Bug #448872: Update selection based on bounding box https://bugs.launchpad.net/inkscape/+bug/448872 (merge proposal) - Bug #669748: Add a command-line switch to specify EPS Export level https://bugs.launchpad.net/inkscape/+bug/669748 - Bug #1173776: (E)PS export crashes when running from command-line https://bugs.launchpad.net/inkscape/+bug/1173776 (merge proposal) - updates the incredibly old Doxyfile file to use newer config values https://code.launchpad.net/~vinipsmaker/inkscape/doxygen - Bug #503712: Personal default template not used https://bugs.launchpad.net/inkscape/+bug/503712 (committed) - Bug #1023797: Scrollbars in Swatches dialog https://bugs.launchpad.net/inkscape/+bug/1023797 (committed) - Bug #257223: 'Object to path' for connectors https://bugs.launchpad.net/inkscape/+bug/257223 - Bug #629081: Spiro and path operations fails https://bugs.launchpad.net/inkscape/+bug/629081 Help for the bug team with getting code-related questions answered, patches reviewed, tested and committed in a timely manner would be appreciated.

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[GSoC -Templates]
by Jan Darowski 29 May '13

29 May '13

Hi! Thanks for accepting my proposal, I hope to be up to your expectations. First of all, I would like to know few technical details: Do you guys prefer mailing most of my questions to this list or directly to the mentor? If the second option, which address? What do you expect me to do during this period before official coding start? I mean except google formal requirements and preparing everything for the fast start. Thanks, Jan Darowski, Slagvi

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[GSOC] Welcome to the 2013 GSOC students
by Tavmjong Bah 29 May '13

29 May '13

We have five successful GSOC proposals! Let me first congratulate the students and wish them success this summer. The five GSOC projects are: 1) An interactive tool for recoloring artwork. Arshdeep Singh (demicoder), mentored by Ted Gould.[1] 2) Improved units support and consolidating units handling to one place. Matthew Petroff, mentored by Johan Engelen.[2] 3) Electronics CAD support, focusing on improving connectors and symbols. Sebastian Götte (jaseg), mentored by Tavmjong Bah.[3] 4) A new dialog to create documents from templates. Jan Darowski (Slagvi), mentored by Krzysztof Kosiński.[4] 5) A new raster-to-vector algorithm focusing on small images. Vinícius dos Santos Oliveira (vinipsmaker), mentored by Nathan Hurst.[5] At this time I would like to remind the students to: 1. Keep discussions on inkscape-devel (or #inkscape on freenode for quick questions). This has several advantages: You can receive help and advice from others; your mentor may not always be available and may not even know the answer to your question (nobody knows all of the Inkscape code). Others can learn from your work. The project administrators will be kept up-to-date. And it will keep the Inkscape community informed (and excited) about your project. To facilitate keeping track of the projects please put at the start of the subject line an appropriate tag for your project. I suggest the following: [Recolor] [Units] [CAD] [Templates] [Tracing] The subject line will then become, for example: [Inkscape-devel][Recolor] ... 2. Set up a public bzr branch for your work. Announce it on inscape-devel. See: http://wiki.inkscape.org/wiki/index.php/Working_with_Bazaar 3. Give weekly status reports. Also, I would like to remind you, that for the final pass, we expect that your code be merged or ready to be merge into Inkscape trunk. Good Luck! Tav [1]https://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/arshd… [2]https://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/mpetr… [3]https://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/jaseg… [4]https://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/slagv… [5]https://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/vinip…

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Discussion on the GSoC proposal - Attribution of work/metadata/license changes
by Christoffer Holmstedt 29 May '13

29 May '13

My project proposal didn't make it in to GSoC but I may be able to work on this anyway during the summer, though no "assigned" mentor for it. I'm now curious about the comments I got on my proposal [1] and would like some elaboration on them. The proposal is mainly about feedback in the statusbar but after reading John Engelen's comment [1] and thinking about it for the last weeks I'm leaning more towards the idea of actually collecting all the relevant metadata and presenting it in the document metadata settings tab. What do you think about this? I read on the Inkscape wiki about "Eliminate limitations" [2] when creating new features, if I understood it correctly it relates to Nathan Hurst's comment [1] about trying to take my idea further. The functionality of tracking metadata/attribution/license information is very specific but a good place to start and eventually how to generalise it will become obvious in the future. Is there anyone that has any idea how it can be generalised? [1] http://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/cholmste… [2] http://wiki.inkscape.org/wiki/index.php/Developer_manual#Implementing_User_… Regards -- Christoffer Holmstedt

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a login to th wiki
by Žroutík 28 May '13

28 May '13

Dear developers, I would like to receive a login to the wiki site, if possible. What steps are required as next, please? I understand, that it is a kind of pain to read such a request in the mailing list, but that is the only way I found out: The wiki login page ( http://wiki.inkscape.org/wiki/index.php?title=Special:UserLogin&returnto=In…) states "please email the developer list", but there is no further link or info. So, I searched around, and the only dev-list I found is the one on the Inkscape site (this list). Kind regards, M

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trivia: website news no more
by Alexandre Prokoudine 28 May '13

28 May '13

Hi, Apparently SourceForge moved everyone to a fancy new platform and relocated our SVN repository, including the one with the current website. Relocating it didn't work for me, nor does checking out a new copy work. This simply means there will be no news on the website until we move to the new website. Alexandre Prokoudine http://libregraphicsworld.org

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Fwd: Inkscape code hosted on GitHub
by Samuel Chase 24 May '13

24 May '13

---------- Forwarded message ---------- From: Samuel Chase <samebchase@...400...> Date: Fri, May 24, 2013 at 11:15 PM Subject: Re: [Inkscape-devel] Inkscape code hosted on GitHub To: Alexandre Prokoudine <alexandre.prokoudine@...400...> On Fri, May 24, 2013 at 10:49 PM, Alexandre Prokoudine <alexandre.prokoudine@...400...> wrote: > On Fri, May 24, 2013 at 4:23 PM, Samuel Chase wrote: > > It kinda defeats the point of having a Github repo, no? :) > Because the point of Github as social development. Yes. There would be a small advantage having a read-only Github repo, but certainly, there are much greater gains in focussing what energy we have into improving Inkscape itself.

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Inkscape code hosted on GitHub
by Samuel Chase 24 May '13

24 May '13

Hello Inkscape Developers, I was able to convert the bzr repo into a git repository yesterday using https://github.com/git/git/blob/master/contrib/remote-helpers/git-remote-bzr What I'm suggesting we do is to create an "Inkscape" orgranisation e.g. (https://github.com/wikimedia) on Github and put up a read-only git-mirror of Inkscape's sources (which will be updated periodically, say once a week). I think this will surely increase the "visibility" of Inkscape's sources and the Inkscape organisation, in general, and we may be able to get new contributors. A lot of other projects seem to do this, even though actual development happens elsewhere. IIRC, cloning a git repository is a lot faster, so, this might help people submit patches quicker. Regular development can continue in Launchpad, as usual. Is this a reasonable idea? Samuel

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Website Local
by Martin Owens 23 May '13

23 May '13

Hey guys, I need help, I've not had anyone yet test my instructions for setting up the new website locally and I could do with a test or two. http://wiki.inkscape.org/wiki/index.php/WebSite (see development section) I want to make sure the instructions are clear and correct enough for _anyone_ to do some development, even if they have only html or English language skills. I've just updated the instructions with the resetcms script which downloads the cms from staging and installs it locally. This is a good test of our backup and restore process for all the content we're making on the staging website. Please do keep up the good work on the staging website, we need more people to get on and add a page or two, or look over what we have so far. Translations for cms content is open right now, so if you do translations you should be over there translating things! Translations for news and any remaining core text will come later. http://staging.inkscape.org/ Thanks for all your help, together we can make the new website rock. Best Regards, Martin Owens

2 2

New Inkscape Website (Staging)
by Martin Owens 20 May '13

20 May '13

Hey Inkscapers, We've finally got the new django-cms-website onto the staging host and it's ready for some testing. I want testers to be gentle as it's her first time out in public, but I'm trying to get the new website into a release-early/often setting so we can start getting this thing ready for inkscape.org[1]. If you're interested in migrating content from the inkscape.org website over to the new django-cms website, go here: Yay! http://staging.inkscape.org create a new account or log in using google etc, then message me privately and I'll enable you as an admin. This will allow you to edit pages in the cms. When you find problems adding content, because the cms doesn't really support it. File a bug in the inkscape-web project on launchpad: https://bugs.launchpad.net/inkscape-web likewise if you hit a 500 or other kind of error. Missing content isn't a bug though, that's an activity! Thanks for all your help guys. Best Regards, Martin Owens [1] I want the website done before the 0.49 release :-P

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Misfeature: 1px black line / geom. figures, sugg. solution 'pixelsnap' don't work
by Julius Voigt 20 May '13

20 May '13

Hi, I found inkscape the best open gfx app. All the more gelastic it was that it's not possible to draw the popular black line of 1px width in true plain black color without having to load an extension (pixelsnap) which did not function in my poor case. Could we have both the smoothness (?anti-aliasing or underlying between-pixels grid?) and the crispyness optionally available. I guess, in general this preperfect-feature comprises all cases in which thin-lined crisp geometric figures are wanted. Cheers, Julius

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Re: [Inkscape-devel] Inkscape-devel Digest, Vol 84, Issue 16
by Jelle Mulder 19 May '13

19 May '13

Hello Martin, I'm interested in porting parts of the old website to the new one. Have to agree with Shlomi though. fontsize is a tad smallish, especially on my 1920x1200 screen. Maybe this is something that could be made adjustable by the user (settings) and have a bit higher default. Less is more... doesn't apply to fontsize but on content per page ;-) Cheers, > Message: 2 > Date: Fri, 17 May 2013 22:16:51 -0400 > From: Martin Owens <doctormo@...400...> > Subject: [Inkscape-devel] New Inkscape Website (Staging) > To: Inkscape Devel List <inkscape-devel(a)lists.sourceforge.net> > Cc: inkscape-users(a)lists.sourceforge.net > Message-ID: <1368843411.21310.145.camel@...2056...> > Content-Type: text/plain; charset="UTF-8" > > Hey Inkscapers, > > We've finally got the new django-cms-website onto the staging host and > it's ready for some testing. I want testers to be gentle as it's her > first time out in public, but I'm trying to get the new website into a > release-early/often setting so we can start getting this thing ready for > inkscape.org[1]. > > If you're interested in migrating content from the inkscape.org website > over to the new django-cms website, go here: Yay! > http://staging.inkscape.org create a new account or log in using google > etc, then message me privately and I'll enable you as an admin. This > will allow you to edit pages in the cms. > > When you find problems adding content, because the cms doesn't really > support it. File a bug in the inkscape-web project on launchpad: > https://bugs.launchpad.net/inkscape-web likewise if you hit a 500 or > other kind of error. Missing content isn't a bug though, that's an > activity! > > Thanks for all your help guys. > > Best Regards, Martin Owens > > [1] I want the website done before the 0.49 release :-P > > > > > ------------------------------ > > Message: 3 > Date: Sun, 19 May 2013 10:51:31 +0300 > From: Shlomi Fish <shlomif@...2985...> > Subject: Re: [Inkscape-devel] New Inkscape Website (Staging) > Cc: Inkscape Devel List <inkscape-devel(a)lists.sourceforge.net>, > inkscape-users(a)lists.sourceforge.net > Message-ID: <20130519105131.07db998b@...2986...> > Content-Type: text/plain; charset=UTF-8 > > Hi Martin, > > On Fri, 17 May 2013 22:16:51 -0400 > Martin Owens <doctormo@...400...> wrote: > >> Hey Inkscapers, >> >> We've finally got the new django-cms-website onto the staging host and >> it's ready for some testing. I want testers to be gentle as it's her >> first time out in public, but I'm trying to get the new website into a >> release-early/often setting so we can start getting this thing ready for >> inkscape.org[1]. >> >> If you're interested in migrating content from the inkscape.org website >> over to the new django-cms website, go here: Yay! >> http://staging.inkscape.org create a new account or log in using google >> etc, then message me privately and I'll enable you as an admin. This >> will allow you to edit pages in the cms. > > Thanks for your work. > > Some comments: > > 1. It says that "Latest stable release: 0.49.2", but 0.49 was not > released yet. > > 2. The font under Users, Developers, Recent News, and in the 4 > Overview/Features/Gallery/Learning Resources tabs, is smaller than the > default font, which makes it unpleasant to read. > > Regards, > > Shlomi Fish > >> >> When you find problems adding content, because the cms doesn't really >> support it. File a bug in the inkscape-web project on launchpad: >> https://bugs.launchpad.net/inkscape-web likewise if you hit a 500 or >> other kind of error. Missing content isn't a bug though, that's an >> activity! >> >> Thanks for all your help guys. >> >> Best Regards, Martin Owens >> >> [1] I want the website done before the 0.49 release :-P

1 0

[SVG WG] Variable width strokes
by Tavmjong Bah 17 May '13

17 May '13

Hi Johan and others, The SVG Working Group discussed variable width strokes last night. A number of questions came about how it should be implemented in SVG. As we have this implemented via the Power Stroke (PS) LPE it would be interesting to get some feedback from Johan and others about these topics: 1. How should the position of the points where the widths are defined be described along the path? PS uses a real number where the integer part gives the node (numbered from the start of the path) and the fractional part the fractional distance between that node and the next node. The WG seems to favor defining the position using a property via the distance along the path defined either as a percentage of the total length or in absolute units. The argument is that then the same property could be assigned using CSS to multiple paths (e.g. a large number of lines that represent hair). On the other hand, having node based positioning would allow a use as shown in: https://people.mozilla.com/~bbirtles/variable-width-stroke/variable-width-s… 2. How should the widths be defined? PS uses absolute user units. The WG seems to favor using a percentage of the stroke width. This would allow quick adjustment of the whole path thickness. 3. Should the widths be symmetric or asymmetric about the path? PS uses symmetric widths. The WG wants to eventually allow asymmetric strokes but maybe not at the time. 4. Should negative numbers be allowed? PS allows negative numbers. The WG seems to favor allowing negative strokes if asymmetric strokes are allowed. 5. How should smoothing be done? PS provides four different algorithms. The WG seems to favor for the moment one smoothing algorithm (Catmull-Rom?) with maybe a linear smoothing. There was some discussion of allowing the algorithm to change along the path. 6. Questions about end-cap and line-join: PS has discontinuities with the various end-caps. Illustrator has continuous edges (at least with round end-caps). Tav Discussion on www-svg: http://lists.w3.org/Archives/Public/www-svg/2013May/0002.html Minutes of last nights meeting: http://www.w3.org/2013/05/09-svg-minutes.html Illustrator end-caps: http://lists.w3.org/Archives/Public/public-svg-wg/2013AprJun/0101.html

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manage
by Martin Owens 16 May '13

16 May '13

What is the difference between manage and Gtk::manage ? ui/dialog/document-properties.cpp:290 Gtk::HBox *space = manage (new Gtk::HBox); ui/dialog/document-properties.cpp:95 _page_page(Gtk::manage(new UI::Widget::NotebookPage(1, 1, true, true))), Use of manage in my own code produces ‘manage’ was not declared in this scope even when every head has been included from the dp code. very odd. I'm also having trouble with ButtonBox: error: no matching function for call to ‘Gtk::ButtonBox::ButtonBox()’ even with include gtkmm/buttonbox.h What is going on? Martin

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Requesting an account for http://wiki.inkscape.org/wiki/index.php/Inkscape
by Shlomi Fish 15 May '13

15 May '13

Hi all, I would like to request an account for the Inkscape wiki: http://wiki.inkscape.org/wiki/index.php/Inkscape I want the username of "Shlomif" like in http://en.wikipedia.org/wiki/User:Shlomif . Some stuff about me: * http://www.shlomifish.org/ - home page. * http://www.shlomifish.org/open-source/ - contributions to open source software. * http://www.shlomifish.org/art/ - some art I created in Inkscape and other programs. ---- The reason why I'd like the account is to fix typos as I run into them like in: [IRC] <rindolf> Hi all. <rindolf> Typo: http://wiki.inkscape.org/wiki/index.php/Python_modules_for_extensions#cubic… - "looses" here should be "loses". <rindolf> Hi all. How do I register? http://wiki.inkscape.org/wiki/index.php?title=Special:UserLogin&returnto=Py… ? <christoffer> rindolf thanks I have fixed the typo <rindolf> christoffer: thanks, and you're welcome. [/IRC] Thanks and regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ "Star Trek: We, the Living Dead" - http://shlom.in/st-wtld There is no IGLU cabal! The former cabalists are trying to prove the correctness of a program that proves the correctness of proofs of other programs. Please reply to list if it's a mailing list post - http://shlom.in/reply .

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sp-color-icc-selector.cpp
by Arshdeep Singh 14 May '13

14 May '13

Hello devs, I want to divert your attention to the function void getThings( cmsUInt32Number space, gchar const**& namers, gchar const**& tippies, guint const*& scalies ) { {_("Cyan"), _("Magenta"), _("Yellow"), _("Black"), "", ""}, -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Re: [Inkscape-devel] Inkscape-devel Digest, Vol 84, Issue 10
by Carlos Lopez Gonzalez 13 May '13

13 May '13

Hi! Maybe you find interesting how Synfig implements the variable width along a path. Initially Synfig tied the width controls to the stroke points so you can vary the width from control point to control point of the stroke. This is useful in many cases but produces problems for those cases where the stroke has many points and the wanted width variation is smooth from the start of the stroke to the end. Also, when the number of control points is small and you want to have many control widths you become forced to add more unwanted control points to add variable width there. So we came in with the Advanced Outline: http://wiki.synfig.org/wiki/Advanced_Outline_Layer The advanced outline responds to those questions this way: 1. How should the position of the points where the widths are defined be described along the path? It has two options. a) Homogeneous: position of the width control is total length stroke based. b) Non Homogeneous: position of the width control is based on the number of beziers and inside each bezier it is length based. So for three beziers (4 points if the stroke is open) a position of 0.5 means the middle length of the second bezier. But for four beziers (5 points if the stroke is open) a position of 0.5 means coincidence with the third control point of the stroke (regardless the length of each bezier) 2. How should the widths be defined? We use a multiplier of the global width of the stroke. A value of 1.0 (neutral multiplier) will use the global width of the stroke. Negative values are allowed. 3. Should the widths be symmetric or asymmetric about the path? We use symmetric. It is easy to extend to asymmetric. 4. Should negative numbers be allowed? Yes 5. How should smoothing be done? We use a 5th degree spline smooth function in linear combination with a linear interpolation. An extra parameter (smoothness) allows to change between full smooth to linear. Details here: https://github.com/synfig/synfig/blob/master/synfig-core/src/synfig/valueno… 6. Questions about end-cap and line-join We have discontinuities in the tangent depending on the interpolation smoothness value. When interpolation is full smooth its tangent is continuous. When interpolation is linear, tangent is not continuous. One latest addition non mentioned in the wiki yet, is the inclusion of a internal parameter of the width control: lower and upper boundaries. Those values (default lower=0.0 and default upper=1.0) defines how is the width control placed along the stroke. This solution was applied when we found that the width control points moved when you extend a stroke in drawing mode. Extending the stroke implies in the worst case to increase the number of bezier points and/or the overall length of the stroke. In those cases it is impossible to keep the width control points in place, so we added the lower and upper boundaries to adjust those values when the stroke is extended to keep the width control points in place form the point of view of the old stroke (before extend). So when you extend a stroke, the width control points boundaries are modified from the defaults to the calculated values to keep them in place. For example, one width control point that is placed at a position of 0.5 from the point of view of the original stroke (at its middle of a 0.0 to 1.0 boundaires), when the stroke length is doubled, the width control point position doesn't change (it remains to be 0.5) but the boundaries goes from (0.0, 1.0) to (0.0, 2.0). This is very important when you deal with device inputs where the user doesn't create the stroke in one time, but in several and consecutive hand drawn strokes that are joined together in a single object. Maybe you wonder why do we want to have a single object after the extension of the stroke: keeping one single object allows to animate the width control position along all the extended stroke without troubles, and at the same time it keeps the width control position in place after extend. Finally, Advanced Outlines supports dashes with custom tips for each side of the dash segment and variable width within the dash segment length. I hope those comments helps you to decide about Powerstroke and to give suggestions to SVG Working Group. Cheers! >________________________________ >Date: Fri, 10 May 2013 07:55:03 +0200 >From: Tavmjong Bah <tavmjong@...8...> >Subject: [Inkscape-devel] [SVG WG] Variable width strokes >To: inkscape-devel(a)lists.sourceforge.net >Message-ID: <1368165303.2239.145.camel@...16...> >Content-Type: text/plain; charset="UTF-8" > > >Hi Johan and others, > >The SVG Working Group discussed variable width strokes last night. A >number of questions came about how it should be implemented in SVG. As >we have this implemented via the Power Stroke (PS) LPE it would be >interesting to get some feedback from Johan and others about these >topics: > > >1. How should the position of the points where the widths are defined be >described along the path? > > PS uses a real number where the integer part gives the node (numbered >from the start of the path) and the fractional part the fractional >distance between that node and the next node. > > The WG seems to favor defining the position using a property via the >distance along the path defined either as a percentage of the total >length or in absolute units. The argument is that then the same property >could be assigned using CSS to multiple paths (e.g. a large number of >lines that represent hair). On the other hand, having node based >positioning would allow a use as shown in: > >https://people.mozilla.com/~bbirtles/variable-width-stroke/variable-width-s… > >2. How should the widths be defined? > > PS uses absolute user units. The WG seems to favor using a percentage >of the stroke width. This would allow quick adjustment of the whole path >thickness. > >3. Should the widths be symmetric or asymmetric about the path? > > PS uses symmetric widths. The WG wants to eventually allow asymmetric >strokes but maybe not at the time. > >4. Should negative numbers be allowed? > > PS allows negative numbers. The WG seems to favor allowing negative >strokes if asymmetric strokes are allowed. > >5. How should smoothing be done? > > PS provides four different algorithms. The WG seems to favor for the >moment one smoothing algorithm (Catmull-Rom?) with maybe a linear >smoothing. There was some discussion of allowing the algorithm to change >along the path. > >6. Questions about end-cap and line-join: > > PS has discontinuities with the various end-caps. Illustrator has >continuous edges (at least with round end-caps). > >Tav > > >Discussion on www-svg: > >http://lists.w3.org/Archives/Public/www-svg/2013May/0002.html > >Minutes of last nights meeting: >http://www.w3.org/2013/05/09-svg-minutes.html > >Illustrator end-caps: >http://lists.w3.org/Archives/Public/public-svg-wg/2013AprJun/0101.html > >

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Expand a Widget Gtk2 and Gtk3
by Martin Owens 12 May '13

12 May '13

Hey guys, I've been struggling with getting my designed UI into code and I need some help. I have a Gtk::Toolbar with a few buttons a space widget and then a few more buttons. The goal is to set h_expand on the space widget in Gtk2 and push the two sets of buttons to either side. The code for Gtk3 is fairly strait forward but C++ isn't letting me call child_set_property and set_expand doesn't do anything; so I'm stuck. Code: http://paste.ubuntu.com/5655252/ P.S. I'm used to using glade, do we not use it because it's a bad dep or because inkscape was made before glade existed? Thanks for your help. Best Regards, Martin Owens

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Canonprinter Debian 7 and Inkscape
by Axel Richter 11 May '13

11 May '13

Hey devs, how can i print my art with my canon out? Nothing go when i press the printerbutton. please help me thanks Axel Richter

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Re: [Inkscape-devel] Something special about Cairo glyph draws?
by Krzysztof Kosiński 10 May '13

10 May '13

2013/5/8 mathog <mathog@...1176...>: > Hi, > > One more question regarding cairo drawing within inkscape. I have most of > the > text_decoration for CSS 2 and CSS 3 implemented (for drawing, assuming it is > already > in the SVG; dotted, dashed, and wavy are only represented with more lines > for the moment, > see attachment) but cannot get the text_decoration_color field to "take". > The color data > gets all the way to drawing_text.cpp, where the decoration render code does > this: > > ct.save(); > > // The next call is SUPPOSED to change the pen color - it does not > ct.setSource( > _nrstyle.text_decoration_color.color.v.c[0], > _nrstyle.text_decoration_color.color.v.c[1], > _nrstyle.text_decoration_color.color.v.c[2], > 1.0 > ); > std::cout << "DEBUG RGB {" > << _nrstyle.text_decoration_color.color.v.c[0] << "," > << _nrstyle.text_decoration_color.color.v.c[1] << "," > << _nrstyle.text_decoration_color.color.v.c[2] << "}" > <<std::endl; > > // code that draws underline, strike-through etc. here > > ct.restore(); > > > The output of the program shows: > > ... > DEBUG RGB {0,0,0} > DEBUG RGB {0,0,0} > DEBUG RGB {0.25098,0.878431,0.815686} > DEBUG RGB {0.25098,0.878431,0.815686} > DEBUG RGB {1,0.647059,0} > DEBUG RGB {1,0.647059,0} > DEBUG RGB {0,0.501961,0} > DEBUG RGB {1,0,0} > DEBUG RGB {0,0,1} > ... > > which looks to me like the colors are OK, but on the screen all of the lines > are the same color as the text. The > line draws are between the save and restore too, so that part is working > properly, just not the change in color. > > Any idea what is wrong with this approach? Cairo will only actually draw the pixels once you call cairo_stroke or cairo_fill. Before then, the target surface is not modified - only the context's path information is. If the decoration is a different color, you need to call this operator twice - once for text and the second time for the decoration. One more remark; I don't think implementing this functionality "manually" is the right approach. Pango, the text layout library we're using, has built-in support for decorations, but for historical reasons we are not using the layouts generated by Pango. The proper way to add these features would be to pass along the Pango layout down to the display tree level and then use Pango-Cairo to display it. This would have some additional benefits, e.g. we could configure hinting and antialiasing properties for the displayed text. https://developer.gnome.org/pango/stable/PangoMarkupFormat.html https://developer.gnome.org/pango/unstable/pango-Cairo-Rendering.html Regards, Krzysztof

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Patch for Bug #1060837
by Arshdeep Singh 10 May '13

10 May '13

Dear devs, Please test my patch. https://bugs.launchpad.net/inkscape/+bug/1060837 I suggest an improvement where scales can be accommodated (like they have been for CMYK in the patch ) for different Spaces as well. the 'getThings' function fetches the requisite the data. We can add scales information pertaining to these for every space. -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Seeking ideas on layer handling with symbols
by Sebastian Götte 08 May '13

08 May '13

Hi, I'm currently working on a GSoC proposal to add PCB layout and schematics editing capabilities to Inkscape (it's not as hard as it sounds). In a PCB layout, you have a number of (physically stacked) layers (one copper layer on each side of the board, possibly multiple copper layers *inside* the board, green solder mask on both sides on top of the copper layers and white print on top of the solder mask for markings etc.). I'm currently unsure on how to map these layers to SVG. It appears obvious to map these to Inkscape layers/SVG groups. This does not work too well however, since all components on the board span multiple layers (pads for the pins on the copper layer, cut-outs for the pads on the solder mask and a package outline and part id/number on the silkscreen). If a component is moved, all parts of it (on any layers) need to be moved simultaneously, and in fact, normally it does not make sense to even select the parts of a component individually. My problem is that this would essentially require cross-group groups, i.e. groups whose elements can be elements of other groups not part of the group, which clashes with XML's tree structure. Currently, I have two and a half ideas on how to address this issue: 1) I implement PCB layers as something different to Inkscape's layers that is just denoted by an object property (I don't like this). This attribute would be pretty similar to the z-order attribute that will be include in SVG 2. 2) I find some way of "linking" multiple groups on multiple layers (I don't like this either, it's easier but more "hackish"). I'm currently leaning towards the second option since I can imagine the first will require a *lot* of work (though I will still look into that further). Perhaps you have some ideas on how this could be implemented in pre-2.0 SVG. Thanks, Sebastian

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Re: [Inkscape-devel] Perfect bound cover extension on Windows
by Chris Mohler 08 May '13

08 May '13

On Wed, May 8, 2013 at 9:08 AM, john Culleton <John@...1202...> wrote: > Slackware comes on a DVD which includes both the standard > installation and an "extras" directory. There is also the > slackbuild site that has pointers to the files needed but I wasn't > able to make that work. There is no equivalent to apt-get etc. http://www.slackware.com/~alien/slackbuilds/python-lxml/ Chris

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Bug #1060837
by Arshdeep Singh 08 May '13

08 May '13

Dear Josh, I have been working on the bug #1060837: https://bugs.launchpad.net/inkscape/+bug/1060837 (Please go through the link to know about the bug) The bug involves depicting the CMS values of a CMYK using Color Space on a scale of [0,100] rather than the default [0,1]. I have up till now setup un-editable GtkEntry Values which shall depict the values that the artist wants ( on the 0 to 100 scale ). Here is a screen-shot: [image: Inline image 1] *I am facing to problems: *1) How to distinguish that a CMYK based color-space is selected ? I am accessing the Colorspace through the ColorProfile object like this- if( asICColorSpaceSig(newProf->getColorSpace() ) == cmsSigCmykData ) { _cmsCMYK = TRUE ; } else { _cmsCMYK = FALSE ; } I have placed this snippet in appropriate places (_setProfile function, _profileChanged function etc ). But nothing seems to really work . Am I using the correct equality condition ? Can you help in this ? [ _cmsCMYK is a bitfield [ gboolean _cmsCMYK : 1 ] added to the sp-icc-color-selector.h file or Color Selector class as a flag to keep track of only CMYK color spaces.] 2) How to setup a GtkEntryBuffer for the GtkEntries I have drwan for the artist ? I wrote a small function: char* getAdjustmentVal (GtkAdjustment *_adj) { gdouble _val=gtk_adjustment_get_value (_adj); _val=100.00*_val; guint _corrVal= _val; char* arr; itoa( _corrVal, arr, 10 ); return arr; } then I used: gtk_entry_buffer_set_text( ....) https://developer.gnome.org/gtk3/3.4/GtkEntryBuffer.html#gtk-entry-buffer-s… but I end of getting runtime errors. The sequence of loading the data before drawing the widget to screen is correct. But I get runtime errors. Maybe because the set text function requires a const array. Any suggestions on that ? What changes are required in the function ? -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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tablet input became laggy since r12292
by Yale Zhang 08 May '13

08 May '13

Hi, I'm using the latest snapshot builds of inkscape (one on Skydrive) and after upgrading from r12292 to r12322, my Wacom Intuos 5 now has major lag problems. This isn't the 1st time I've had lag. Previously, I've encountered this problem in both the Windows x64 versions of Inkscape and Gimp. https://bugzilla.gnome.org/show_bug.cgi?id=696148 Somebody suggested a workaround of downgrading libcairo from 1.12 to 1.10, and that worked. But I see that even the no-lag r12292 version is using libcairo 1.12, so it now seems less likely that Cairo is the root cause of the lag. There only seems to be 25 changes since r12292, but I'm not that familiar with Inkscape internals yet. Can someone suggest what could've went wrong? Thanks, Yale

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Bug #1060837
by Arshdeep Singh 07 May '13

07 May '13

Dear Josh, I have been working on the bug #1060837: https://bugs.launchpad.net/inkscape/+bug/1060837 (Please go through the link to know about the bug) The bug involves depicting the CMS values of a CMYK using Color Space on a scale of [0,100] rather than the default [0,1]. I have up till now setup un-editable GtkEntry Values which shall depict the values that the artist wants ( on the 0 to 100 scale ). Here is a screen-shot: [image: Inline image 1] *I am facing to problems: *1) How to distinguish that a CMYK based color-space is selected ? I am accessing the Colorspace through the ColorProfile object like this- if( asICColorSpaceSig(newProf->getColorSpace() ) == cmsSigCmykData ) { _cmsCMYK = TRUE ; } else { _cmsCMYK = FALSE ; } I have placed this snippet in appropriate places (_setProfile function, _profileChanged function etc ). But nothing seems to really work . Am I using the correct equality condition ? Can you help in this ? 2) How to setup a GtkEntryBuffer for the GtkEntries I have drwan for the artist ? I wrote a small function: char* getAdjustmentVal (GtkAdjustment *_adj) { gdouble _val=gtk_adjustment_get_value (_adj); _val=100.00*_val; guint _corrVal= _val; char* arr; itoa( _corrVal, arr, 10 ); return arr; } then I used: gtk_entry_buffer_set_text( ....) https://developer.gnome.org/gtk3/3.4/GtkEntryBuffer.html#gtk-entry-buffer-s… but I end of getting runtime errors. The sequence of loading the data before drawing the widget to screen is correct. But I get runtime errors. Maybe because the set text function requires a const array. Any suggestions on that ? What changes are required in the function ? -- Arshdeep Singh Third Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Another GSoC'er - New From Template
by Jan Darowski 07 May '13

07 May '13

Hi! I'm Jan Darowski, form Poland, studying IT at the Warsaw University. Launchpad, IRC nick Slagvi. As for now I've developed few apps (mainly with Qt), but couldn't find a nice way to get into open source development (although I use it all the time). And here appears GSoC. I chose Inkscape because I often see many cool, free projects, which have even better functionality than commercial ones but for some reason they aren't as popular. I think that it's caused by less friendly, simple interface. I'm attending an Inkscape Internet course on my university and find it really nice and interesting project, which in many places can be improved. Later on I saw, that there's a very strong, active community what I find very important. I chose to implement an old New From Template idea, as it looks like something improving reception of inkscape (especially for the new and very advanced users). It is also a well documented and described idea, so I believe that not only I find it important. Of course I already did required two patches, trying to choose these related with the subject. I already have some ideas/plans how to implement this idea but first I want to know if there aren't any more suggestions from the other developers. And here are the the questions for you guys: 1. Is it still as important idea as I think? Maybe there is something more urgent what you can suggest to me? 2. As the ideas blueprint suggests ( https://blueprints.launchpad.net/inkscape/+spec/new-from-3. template-dialog) there has been some work done about this idea but I cannot find anything about what has been done and where it is. 3. Is there any support for the procedural templates written? That's another mentioned functionality I cannot find. Is it so important? Without very deep research in this direction I think It can require a lot of work to do it from the beginning. Maybe even to much as for the GSoC, as there are also other things to be done during this period. As for now, I'm thinking about focusing on making a simple dialog, which covers current functionality + searching by tags + categorizing templates (things from wiki http://wiki.inkscape.org/wiki/index.php/NewFromTemplateSpec). As there will be a nice "New From Template" dialog, maybe I should also add one for creating templates? It shouldn't be very difficult, just another type of save dialog, with some additional template-specific fields and adding them into svg file.

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Perfect bound cover extension on Windows
by john Culleton 07 May '13

07 May '13

I have since found the messsage. In essence it says I must download and install http://cheeseshop.python.org/pypi/lxml That in turn requires that I download using a package called "pip" which I don't have. Or I can build from source, but that requires that I have libxml2 and libxslt including header files. This is indeed a man-sized can of worms to get a function that should be included with the base system. I also have a Debian partition up which has Inkscape 47 on it. If the "pip" path fails I will try upgrading Debian to wheezy which may have a newer version available. It would be nice if the developers of Inkscape would provide a source package for Linux that had all the requirements bundled in. -- John Culleton Wexford Press Free list of books for self-publishers: http://wexfordpress.net/shortlist.html PDF e-book: "Create Book Covers with Scribus" available at http://www.booklocker.com/books/4055.html

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GSoC project proposal: Inkscape as an electronics CAD tool
by Sebastian Götte 03 May '13

03 May '13

Hi, I'm Sebatian from Berlin. I have used Inkscape for a few years now and I have a project proposal on how to make Inkscape a full-blown electronics CAD tool with only few special-purpose additions. I have written some software before[1,2,3] and contributed to other open-source projects[4,5]. I have registered a blueprint with my proposal at [6]. The spec can be found in the wiki at [7]. Here is the overview from the blueprint: Currently there is no nice open source electronics CAD tool. The largest competitors are gEDA which I find awkward to use and KiCad which I find even more awkward to use. Since a schematics editor is not much more than a special-purpose flow graph editor and a PCB layout editor is in fact nothing but a somewhat crippled vector graphics editor with some special-purpose features added I think it is very promising to modify a general purpose vector graphics editor to support the few special-purpose functions additionally required by an electronics CAD tool. Your comments are welcome :D Sebastian [1] https://github.com/jaseg [2] https://github.com/jaseg/cerebrum [3] https://github.com/jaseg/python-lmap [4] https://github.com/git/git/commit/d5fec92a7af5c42217f3d1c707191791230bdefc [5] https://github.com/jaseg/i3lock/commits/master [6] https://blueprints.launchpad.net/inkscape/+spec/electronics-cad [7] http://wiki.inkscape.org/wiki/index.php/SpecElectronicsCAD

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GSoC 2013: Depixelizing Pixel Art
by Vinícius dos Santos Oliveira 02 May '13

02 May '13

Hi Inkscape Developers, I'm Vinícius dos Santos Oliveira and I'm majoring in computer science at Universidade Federal de Alagoas, Brazil. I'm not very skilled, but I use (and like) the Inkscape software for some time ( http://vinipsmaker.deviantart.com/gallery/?catpath=/ ). I have experience with GUI programming and C/C++/Python/..., so I think I can develop to Inkscape. I'll try to fix some "easy-fix" tagged bugs next week. I thought about an idea for a GSoC proposal and I wanna know your opinion about this idea. Inkscape currently use potrace for all raster-to-vector conversions, but potrace isn't good to work with pixel-art. Some reasearchers developed an algorithm that perform better with pixel-art: http://research.microsoft.com/en-us/um/people/kopf/pixelart/ My proposal would be to develop an C++ library implementing this algorithm and: 1. Create an cli program using this library 2. Integrate the feature in Inkscape using this library The main tasks to implement this algorithm are: - Construct a graph - Reshape the graph with the help of some heuristics defined in the paper - Extract the spline curves - Optimize the curve - Convert the B-Splines curves to Bézier curves The library should export the curve as B-Splines and Bézier curves. This way, if Inkscape gain support for B-Splines curves in the future, it should be easy to convert the filter to generate the B-Splines instead of Bézier curves. After finish the proposal, Inkscape should have another option to convert raster images. I'm already used to a lot of programming languages and programming paradigms and programming skills won't be a problem for me. Graphs wouldn't be a problem for me either (I have some background on data structures and related). I would take more time to master B-Splines and Bézier curves, but I don't think this should take more than two weeks. If I finished this proposal fast enough, I could even add extra features like add an option to pre-proccess the input with hqx filter before send it to the cited algorithm. You can see some demos of the algorithm at http://research.microsoft.com/en-us/um/people/kopf/pixelart/supplementary/i… and the results are amazing. -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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Text drawn to screen where? (Pango splitting text fields excessively for other output.)
by mathog 02 May '13

02 May '13

Layout-TNG-Compute figures out glyphs, spans, etc. for screen output. But when and where is that information actually drawn to the screen? I have been working on EMF, R->L output and various other things, and discovered that Pango sometimes really goes to town breaking text fields into smaller "unbroken spans". These are necessary for screen display, since it must find a glyph/font pair for each unicode character, but some of the results are overkill for the "print" output functions, which typically need to know where the resulting glyph is, but most likely do not really care what (substitute) font was used. That is true for EMF output, and presumably for the other supported output formats as well. Example, when the following 7 unicode characters are entered, all in Arial font: (a) (grave accent) (b) (acute accent) (c) (circumflex accent) (d) pango_itemize breaks it into 3 pieces: (a) (grave accent) (b) (acute accent) (c) (circumflex accent) (d) because Arial (on the test system) did not have a glyph for circumflex, so it fell over to DejaVu Sans. These 3 smaller pieces are then fed one by one into pango_shape() and etc., until the information is ready for the screen. This is all well and good for screen display, but the same graphics structure is also used for "print" output (other than SVG, I think). The second fragment, in particular, is likely to be mishandled by whatever reads the file output, since that is a Mark, nonspacing unicode character, and should always follow a normal character in the same text record. In the print context the font substitution used within Inkscape is irrelevant for the construction of the output file. In all likelihood no or a different font substitution may take place in the target system. Breaking text strings that are in one "tspan" in the original SVG, down into several in other output formats, is certainly not the desired result! To work around this problem layout-Compute would need to keep two sets of books, as it were: setting up the fragments that eventually go to the screen, and the simpler set of fragments that go to print. The glyph<->character map is the same, but the print spans are merges of 1 or more screen spans. Inkscape would need to make a distinction between drawing to the screen, and drawing to a file, and send the appropriate set of spans to the appropriate target. Near as I can tell, at present it just sends the same structure to both destinations. (This effect is not seen with SVG output, because nstead of working from the screen's graphics structures, it just saves the stored XML.) Regards, David Mathog mathog@...1176... Manager, Sequence Analysis Facility, Biology Division, Caltech

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Trunk builds for Fedora
by Ryan Lerch 02 May '13

02 May '13

I have started doing builds of RPMs from Inkscape trunk for Fedora 17, 18 and 19: http://repos.fedorapeople.org/repos/ryanlerch/inkscape-unstable/ I don't have a cronjob for this, so they aren't nightly builds, but i hope to keep it fairly up-to-date. cheers, ryanlerch

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GSoC 2013 - Friendly attribution hint in the statusbar when copying/importing
by Christoffer Holmstedt 02 May '13

02 May '13

https://blueprints.launchpad.net/inkscape/+spec/friendly-attribution-hint-w… So as suggested by Ted in a previous mailing conversation I've now created a first draft of my proposal. Please comment on it. I thought about pop-ups, but when I copy something between documents or imports something I don't want to be interrupted with an annoying pop-up therefore I've resorted to the statusbar. It's currently not showing anything specific when importing a SVG file nor pasting from the "clipboard". -- Christoffer Holmstedt

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Perfect bound cover extension on Windows.
by john Culleton 01 May '13

01 May '13

When I installed Inkscape 48.4 on two different kinds of Linux and tried to use the: extensions-->render-->perfect-bound book cover template I got a message that I had to install an additional piece of software to use that function. This is no big deal to experienced linux users but might be for Windows users. So for the 0.48.4 version of Inkscape.exe, does this situation also exist with respect to the perfect-bound book cover feature? I have a Windows 7 partition up but haven't been able to convince it to talk to my router yet. And the handy-dandy router install disk is for an earlier version of Windows. (Sound familiar?) I can't just download the inkscape.exe via linux and move it over to the Windows partition. (Tried that trick too. Wouldn't execute.) So I can't test it myself. If anyone has tried the combination of recent inkscape, installed on Windows, and the perfect-bound cover feature I would appreciate hearing from them. -- John Culleton Wexford Press

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toxic SVG for dumpAsText() in Layout-TNG-Output.cpp
by mathog 01 May '13

01 May '13

While debugging I found that the dumpAsText() method is sensitive to some legal, but not very useful SVG constructs. Constructs Inkscape created for some reason or other. For instance, this: <text xml:space="preserve" style="font-size:16px;font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:FreeSans;-inkscape-font-specification:Sans Bold" x="929.79449" y="173.63014" id="text3112" sodipodi:linespacing="125%" transform="translate(0,377.35975)"><tspan sodipodi:role="line" id="tspan3114" x="929.79449" y="173.63014" /><tspan sodipodi:role="line" id="tspan3126" x="929.79449" y="193.63014" /></text> blows up in dumpAsText, if that is method is included in the code for debugging purposes. The problem is that for the empty spans the "input_stream_first_character" iterator on the empty spans cannot be dereferenced without a segfault, and that is exactly what happens here: snprintf(line, sizeof(line), " %d: '%c' 0x%4.4x x=%f flags=%03x glyph=%d\n", char_index, *iter_char, *iter_char, _characters[char_index].x, *u.uattr, _characters[char_index].in_glyph); Regards, David Mathog mathog@...1176... Manager, Sequence Analysis Facility, Biology Division, Caltech

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PCBmodE
by saar drimer 01 May '13

01 May '13

Hello everyone. I'm new to the list and wanted to introduce myself and talk about why I'm here. I developed a Python software for creating artistic and functional printed circuit boards. It's open source (Apache License) and based around JSON, SVG, and Gerber output (the latter for lack of any other more manageable alternative). I use Inkscape to draw the routing, and to move instantiated components around (everything else is created from information stored in JSON files). Before I continue, here's more info and some nice pictures: http://bitbucket.org/boldport/pcbmode http://boldport.blogspot.com My development mindset up to now was to not modify Inkscape or require plugins, and to use only what is strictly necessary, or what I cannot reasonably implement myself (auto-routing, complex SVG manipulation, etc.). This might need to change, as I'm realising that in order to make PCBmodE more useful to other people, it needs to be more tightly integrated with Inkscape. So I'm here to discuss the possibilities and hear your thoughts, advice, and criticisms. Here's more about me and my background: http://www.saardrimer.com http://uk.linkedin.com/in/saardrimer Thanks! saar.

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GSoC 2013 Project Idea | Mayank Dehgal
by Mayank Dehgal 01 May '13

01 May '13

Hello! I am Mayank Dehgal, a student from IIT Bombay, India, currently a second year undergraduate in the Computer Science department. I am interested in working with Inkscape for GSoC. I have used Inkscape to present the designs of 2D games and animations I have created. I have been thinking for long about using the generated svg file for creating a 2D game engine, or for animating certain rigid bodies. Since the svg file is an xml file, we just store the information of different structures in the file. I have been using Box2D ( 2D physics engine) lately, and we just declare different bodies with their positions, gravity, density, shape, so that the physics engine uses the information and runs the simulation. I plan on adding various properties to the svg file through additions in the User Interface, and then using it with Box2D to create simulations and 2D games. Please give me feedback and suggestions regarding this idea. Thank you.

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Build and hard link
by Martin Owens 01 May '13

01 May '13

Hey Devs, and more specifically Super Ted, I'm trying to come up with a script to process some of these merge requests more effectively. I've been keeping a trunk branch handy which is re-made each new pull so I have something up to date enough to work from and not have to wait for huge builds. So, I thinks to myself, maybe if I used bzr correctly and did a `bzr branch trunk bug174678 --hardlink`, ran the autogen and then hardlinked over all the .o files from trunk, I'd have a reasonable starting point. Turns out it's not that simple and make just wants to rebuild everything in the new branch anyway. I'm guessing it's checking some prerequisite's date stamp and I'm just not making sure it's touched. Script can be seen here: http://paste.ubuntu.com/5621102/ Any ideas? Best Regards, Martin Owens

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