- Inkscape Devel - Inkscape Mailman

Circular Arrangement
by Denis 14 Mar '12

14 Mar '12

Hi Community, I wrote some days ago about circular arrangement. I'm still busy writing a proposal document (which I need for the Software Engineering course, this project is part of). As soon as I finish, I'll let you know. In the meantime, I've done some mockups, you can find at http://www.pasteall.org/pic/28214. Let me know what you think. - The first part of the dialog("Anchor Point") is the point that should be used to arrange the objects on the circle. - The second part is used to select what the circle/ellipse/arc to put the objects on is. Note: I've put Radius x/y in there, because this allows to have ellipses. - The angles are used to describe an arc - Finnaly if Rotate objects is turned on, the objects on the circle will be rotated (e.g. If you're trying to arrange the stars in the european flag, you should turn this option off) By the way, as someone suggested, I should put this feature in the "Rows and Columns" panel. As IMHO this panel is somewhat messy (especially the align selection), I also thought of ways to improve that. Denis Declara

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Surface synthesizer?
by Jasper van de Gronde 13 Mar '12

13 Mar '12

Is there any particular reason that the morphology filter uses something called a "surface synthesizer" (or something along those lines)? Its time complexity currently depends on the structuring element size, and I wanted to fix that, but to do that I need to be able to keep some history, as well as delaying the output until enough data has been gathered. Is this possible at all within this scheme? If not, is it okay if I just copy-paste ink_cairo_surface_synthesize - gut it - and write a few simple loops? (Or am I missing something?)

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Nightly 0.49 download/compile.
by john Culleton 13 Mar '12

13 Mar '12

I build the latest and greatest Scribus versions overnight. Now I would like to do the same for Inkscape 0.49.x. If possible I would like to do an svn download. If not just a tarball of the source would do. If Bazaar is the only path I will learn that. But I prefer the more familiar svn path. I have Slackware Linux, and don't want to make an Ubuntu partition just for Inkscape. Please show me the pointers needed to download the latest 0.49 nightly. -- John Culleton Free list of books for self-publishers: http://wexfordpress.net/shortlist.html Police Procedural and Expose: "Death Wore Black" "Create Book Covers with Scribus" http://www.booklocker.com/books/4055.html

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New Cairo release rumors...
by Tavmjong Bah 12 Mar '12

12 Mar '12

A couple of weeks ago on the Cairo mailing list there was a request for a release engineer to drive Cairo 1.12 home. Do we have anything that we want to see in the next Cairo release? I seem to recall there being an issue with being able to set the EPS bounding box. Any others? Tav

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CMake: parallel builds
by Johan Engelen 11 Mar '12

11 Mar '12

Hello all, Does the cmake build work well on Linux? I wonder if parallel builds work with it. For lib2geom, which uses cmake, parallel building does not work. If it works for Inkscape, we can try to compare and see where things go wrong for lib2geom... Thanks, Johan

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Feature proposal: erase mode (and other boolean modes) for drawing tools
by Valerie 11 Mar '12

11 Mar '12

I'm just running this by the mailing list to see if it's worth a feature proposal before submitting it. Feature: boolean modes for all drawing tools. 1. Select an existing object 2. Select a tool of your choice (say... Pencil), with Exclude mode activated for example. (boolean modes appear as small icons in the toolbar) 3. When you draw a shape, the originally selected object does not get un-selected. When you finish drawing your shape, Inkscape automatically chips away at the original shape. The original shape still does not get un-selected until you select something else, so you can continue chipping away at it. Exclude is just one mode, you can have addition, intersection, etc. It applies to both drawing tools and shape tools. I was inspired for this by 2 things: - Krita's "erase" mode. You can basically take any paint tool and activate an erase mode to make the eraser much more interesting. - I never use the eraser. The round shape just isn't too convenient. : ( Thinking about it now, Gimp has similar options for selection tools. I often draw a rough shape and slowly refine it by zooming in before adding to it or chipping away at it, so this feature would streamline the workflow a lot. (also, it took me a while to remember the boolean operations, I imagine shortcut-phobic users would appreciate this feature a lot) Also makes it easy to make quick holes.

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Converting SVG to HTML5 Canvas and extensions folder
by Karlisson Bezerra 11 Mar '12

11 Mar '12

Hello! I'm Karlisson Bezerra, from Brazil. I use Inkscape since 2005, to draw comics and other stuff: http://hacktoon.com Some time ago I started developing an extension to convert SVG to HTML5 Canvas, ca to provide Inkscape the hability to generate Canvas graphics without having to write Javascript code. You can see the roadmap on the Github page, and check on the progress of the project: https://github.com/karlisson/ink2canvas This was my final graduation work and I'd like to hear from you about it. My friend Felipe Sanches granted me write permission to the repository but I still not updated the code there with the last commits in Github. Note: I have already two submissions to Inkscape project. The first was the Split Text extension that is already deployed on the last releases. I have some good plans for the future of this extension, and it will get even more useful when Inkscape support SVG animation. For now, I want to create a framework for generating objects that encapsulates the code produced by the extension and can be invoked any time. This can be used in games for drawing characters and stuff. For you who programmed in Flash Actionscript, this would be a rough prototype of a "MovieClip" object. Also, I'd like to ask something: this extension needed more than one file because of its complexity. But, just putting all files in the extensions folder would scatter them, and this isn't an organized solution. This is what is happening today. My solution to this problem was copying the inkex.py and other Inkscape modules to the lib folder in my project, so people won't have to do nothing to test the extension. Actually I'd like to know if we could organize the extensions folder by putting each one in its own folder. Inkscape would read the folder the same way it reads an INX file. An extension would be recognized only if it would have an INX inside of the folder. That's all, folks :D -- --- Karlisson M. Bezerra http://hacktoon.com

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Meeting: build system on Windows
by Johan Engelen 09 Mar '12

09 Mar '12

Hi all, I would like to have an IRC meeting about the build system on Windows. Although I like buildtool, it cannot do parallel builds, so I am happy to change (back) to something else. And unify it with Linux if possible... I am trying cmake now, but it does not link without errors yet. It is not very encouraging to see the cmake build process get stuck on some intermediate step for a long while, seemingly checking something to find out it does not need to rebuild it. "btool" does this much much quicker... In any case, I'd like to discuss the options. Who's in? Regards, Johan

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Re: [Inkscape-devel] Powerstroke cusps
by Valerie 09 Mar '12

09 Mar '12

I've been trying out the powerstroke too, and one of my thoughts on it actually involves poetry on how tragic it is for the sharp edge to be dulled so fast. In other words, I Love the edge, so I'm really sad when it gets cut off so soon. :P Is there a way to control the setting on how soon it gets cut off? I do like them long and sharp! So, other reports: - Thanks for fixing the grouping issue! I can submit a feature request for applying powerstroke to multiple items at the same time, but do people usually submit feature requests for features in the development version? It just seems a bit early. - I've noticed some instability in the rendering. If I do an interpolated powerstroke with multiple cusp nodes and start editing one of the nodes, another cusp node two nodes away (so not the neighbor) may start flickering between the interpolated and beveled states. I don't know how to reproduce this consistently though, and the terminal doesn't say anything strange. I'll try to reproduce it again later and see if I can attach a file. - Applying a stroke to the powerstroke will show lines "inside" at cusp nodes, but I think you already knew that. Still, this is shaping up nicely, and will definitely be an amazing feature for the next release!

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Powerstroke cusps
by Johan Engelen 08 Mar '12

08 Mar '12

Hi all, I've been working on cusps on powerstroked paths. And I've obtained a first success. The attached picture shows a comparison between how powerstroke strokes thick cusps, and how Inkscape does it normally (I suppose according to SVG spec). I think the powerstroke solution is more artistically pleasing, what do you think? :-) Cheers, Johan

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Re: [Inkscape-devel] Contributing to Inkscape
by Valerie 07 Mar '12

07 Mar '12

I'd love a circular distribution, they're currently a pain to do. The main issues you'll have to solve are: 1. How do you define the rotation center? - This could be solved via a drop-down, like for example, "Rotation center: [Of top object]" 2. How do you define where the rotation starts and ends? 3. How do you position objects in-between? Define angles? If you already have a UI in mind, we'd love to hear it. ------------------------------ Message: 5 Date: Tue, 06 Mar 2012 10:50:22 +0100 From: Denis <declara91@...400...> Subject: [Inkscape-devel] Contributing to Inkscape To: inkscape-devel@...460... Message-ID: <4F55DDDE.5000209@...400...> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hi inkscape devs, I'm a bachelor student in computer science, and I would like to contribute to inkscape as part of a porject for a course I'm taking. The requirements are to add a feature to an open source project written in c++. The feature I had in mind for now, is to extend the Align and Distribute panel, by allowing also circular distributions.

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Re: [Inkscape-devel] Contributing to Inkscape
by Valerie 07 Mar '12

07 Mar '12

Awesome! It seems we pretty much have the UI then! 1. Radial align as a new tab in the Align dialogue. 2. Relative to: - Objects center - First circle selected - Last circle selected - First arc selected - Last arc selected 3. Distribution types: Angular distribution: - Even distribution along circle/arc - Objects distributed at regular intervals as defined by the angle of the chosen arc Radial distribution types - Inside Circle - Along Circle - Outside Circle (with circle being either the circle selected, or in the case of "relative to objects center", defined using the object edge closest/furthest from the object center) I don't suppose we could add an "align along path" feature while we're at it? (hahah, one thing at a time...)

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Contributing to Inkscape
by Denis 06 Mar '12

06 Mar '12

Hi inkscape devs, I'm a bachelor student in computer science, and I would like to contribute to inkscape as part of a porject for a course I'm taking. The requirements are to add a feature to an open source project written in c++. The feature I had in mind for now, is to extend the Align and Distribute panel, by allowing also circular distributions. Let me know what you think, or if you have any suggestions. By the way, I'm currently getting a lot of namespace errors while compiling using gcc 4.6.3 on arch-linux 64bit. Is there a patch out there to correct those errors, or do I have to manually edit all the affected files? Thanks, Denis

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Re: [Inkscape-devel] Shape resize origin
by Valerie 06 Mar '12

06 Mar '12

You can snap the cross-hair around, but beyond that, no. There's a pretty cool blueprint for the feature you're describing though: https://blueprints.launchpad.net/inkscape/+spec/transformation-anchors ---------------------------- Message: 6 Date: Tue, 6 Mar 2012 14:42:10 +0100 From: Yann Papouin <yann.papouin@...400...> Subject: [Inkscape-devel] Shape resize origin To: Inkscape Devel List <inkscape-devel(a)lists.sourceforge.net> Message-ID: <CAFkfGVC2pvHNb--706UB_L06dCzZowg_o4r4NJ16=QsJEaJhKw@...401...> Content-Type: text/plain; charset="iso-8859-1" Hi everyone ! I'm wondering if there is a way to resize a shape from it's cross center (the one set by the cross) like it can be done with the Mouse+Shift combination but by using the edit box of the toolbar (I need to increase the radius of a circle with precise value) ? If not, a tool to select the relative point to resize would be nice: [image: Images int?gr?es 1] About this, is there a way to reset the cross center to the shape barycenter ?

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Shape resize origin
by Yann Papouin 06 Mar '12

06 Mar '12

Hi everyone ! I'm wondering if there is a way to resize a shape from it's cross center (the one set by the cross) like it can be done with the Mouse+Shift combination but by using the edit box of the toolbar (I need to increase the radius of a circle with precise value) ? If not, a tool to select the relative point to resize would be nice: [image: Images intégrées 1] About this, is there a way to reset the cross center to the shape barycenter ?

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Re: [Inkscape-devel] Powerstroke cusps
by Valerie 05 Mar '12

05 Mar '12

> Thanks for telling me; please a bit of patience for the fix. :) > Powerstroke is not meant to be used on groups (yet?)... No problem, just testing things out to see what works and what doesn't. :) I don't think many people would want to apply powerstroke on a "group", per se, rather people may want to select a large number of existing strokes and be able to apply powerstroke to all of them at once. Basically, place the lines first, define the shapes later. > > It's best to try a build after rev. 11046. Awesome, thanks!

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Precise Pressure
by Martin Owens 05 Mar '12

05 Mar '12

Hey all, A user asked me to test precise for tablet functionality since Oneric was a wipeout for artists. It looks like it's fixed in gimp and the data in inkscape's tablet tools looks good... but inkscape doesn't seem to be using it. Did someone switch it off? Martin,

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Re: [Inkscape-devel] Inkscape tiling interface redesign proposal
by Valerie 05 Mar '12

05 Mar '12

Awesome! Thanks for informing me! I've edited the wiki to make all the old images appear there. And thanks for providing the code too, I'm still rather unfamiliar with editing wikis! I'll re-add the description for the "Exclude tile exterior" feature tomorrow. ------------------------------ Message: 6 Date: Mon, 5 Mar 2012 14:52:02 +0100 From: Kris De Gussem <kris.degussem@...400...> Subject: Re: [Inkscape-devel] Inkscape tiling interface redesign proposal To: inkscape-devel <inkscape-devel(a)lists.sourceforge.net> Message-ID: <CADfUNqfuJ1BLsi9v47VuP1Tzg95rEi=-x3+y4fromKOY_W4Arw@...401...> Content-Type: text/plain; charset=ISO-8859-1 2012/3/5 Valerie <valerie_vk@...36...>: > Some time ago I was thinking up possible new interfaces for Inkscape's > > tiled clones function, and had compiled them here for now: > > http://wiki.inkscape.org/wiki/index.php/Tiling_tool Thanks for the update. Please note that image uploading on the wiki is again possible (I checked by uploading one of your linked images). Regards K.

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Re: [Inkscape-devel] Inkscape tiling interface redesign proposal
by Valerie 05 Mar '12

05 Mar '12

> My thoughts are that this is some very interesting work. Do I understand > correctly that your idea is to create (pretty advanced) guides on-canvas > depending on the select symmetry, and use those to define the base tile? > And then you want to be able to differentiate between "exterior" tiles > and "interior" tiles, with the "exterior" tiles tiling only so much that > they form a one-tile thick border around the tiles? Exactly! Of course, you can toggle on and off whether to delete tile "exteriors" for non-edge tiles. The "delete tile exterior" is mostly for the advanced seamless designs, not if you just want to toss around a few bubbles. > Have you thought about the interaction with things like random > displacements (and non-constant displacements). I admit I haven't thought that far... I'm not an expert in tilings, and even less in tiling algorithms, so I've never thought beyond "this connected to that." I guess it's possible, there are two separate options you can tick after all: - Make seamless tile - Exclude tile exterior as needed So, you could in theory tick the second box, and Inkscape will cut out the edges but still apply all the position and size transformations as needed. So the result doesn't need to be seamless. > Have you seen this java applet - designed to explore penrose tilings. > Its not guide based in the same way as yours but instead you manipulate > exemplars and see the result. You can see the interdependence and how > your guides might correspond to edges on these tiles. > Not sure if useful to you or not ? > http://www.cgl.uwaterloo.ca/~csk/software/penrose/ Thanks a lot for the link! That's actually a really good reference for how "guide points" are supposed to look (though... the tiles are different). In my version you can also create a guide point and drag out a segment, the both of which show up in other relevant sides. The idea is that they help create absolutely smooth transitions: just create a node on the guide point, and snap the node's handle to the edge of the segment guide. Repeat with the node's counterpart. Smooth transition! One thing that's bugging me is that users who don't want to create seamless tiles will probably want a generic rectangle tile to which they can apply any transformation they want, just to see which looks most interesting. But if you want to create a seamless tile, you have to define a specific guide from the start... Unless I just make guides and transformations to later apply independent. If you then apply a different transformation, that won't end up with a seamless design, that's your problem?

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Re: [Inkscape-devel] Inkscape tiling interface redesign proposal
by Valerie 05 Mar '12

05 Mar '12

Some time ago I was thinking up possible new interfaces for Inkscape's tiled clones function, and had compiled them here for now: http://wiki.inkscape.org/wiki/index.php/Tiling_tool Recently I've been giving some more thoughts to creating seamless patterns, in particular the "edge scenarios" of normal tiling. A lazy person (like me) would probably find it a pain in the neck to make new tiles for the edges and have to realign everything. What if you could define those edge scenarios in a single basic tile? In my tiling tool proposal, I proposed tile guides where you can add "guide points" and "guide point pairs" along the boundaries. Guide points drawn on one side will automatically appear on all the other relevant sides so you know where to connect. http://postimage.org/image/ae0dae6mh/ http://postimage.org/image/kqmnwh05l/ When you have nodes located on a guide point, applying "fuse tiles" automatically connects these nodes to the corresponding nodes on the next tile. So what if we make it so that all parts of the pattern Outside the basic tile gets cut away as necessary according to these guide points? Edge tiles however will retain the original extremities. The result: http://www.freeimagehosting.net/5e38w This concept can also be applied to radial tiling, for both rotation and resizing tiles: http://www.freeimagehosting.net/sbhmo I don't believe I've seen a program where you can easily create seamless tiles for all the different wallpaper groups, and this certainly makes things a little easier. Thoughts?

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Re: [Inkscape-devel] Powerstroke cusps
by Valerie 04 Mar '12

04 Mar '12

On the topic of Powerstrokes... applying Powerstroke to a group seems to crash Inkscape. Steps to reproduce: 1. Create two bezier paths 2. Group them 3. Apply Powerstroke to group (inkscape:5119): GLib-GObject-WARNING **: invalid cast from `SPGroup' to `SPShape' The idea was to first place the lines, then apply powerstroke to all of them to edit the line shapes afterwards... Do I start another bug report? Anyway, on the topic of cusps shapes: it's true that from a technical drawer's perspective, the result may seem too pointy, but maybe such users won't actually generate lines of that angle (thus shapes that pointy) when they're actually drawing. Just to say that we're all likely itching to try it out for ourselves. :P

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Bezier smoothness and antialiassing
by Stefan de Konink 04 Mar '12

04 Mar '12

Hi, First of all, although this email could be observed as a troll, I hope I can show that I want to improve stuff, not troll. My core (daily) automatic use of Inkscape is using it as renderer for a bulletingboard system. It runs over the last years 24x7, and I choose it because of the text-flow support. That said, we are moving to HD broadcast and the analogue smoothness is removed for 1080p sharpness. One of the core template designs uses a Bezier curve, imagine this as one side of a very tall egg. This surface, thick white border, is placed on dark blue. I am quite disappointed with the outline of the rendering of the curve. One of the topics I found today was at: <http://www.inkscapeforum.com/viewtopic.php?f=5&t=11451> The following blog entry mentions that cairo overdoes anti-aliassing, I also compared the Cairo output and rsvg's output. The curve is different, but is it really better? Not really. <http://libregraphicsworld.org/blog/entry/getting-crisper-text-out-of-inksca…> The Faq talks about 'Jagged edges'. Since my curves are insanely big, I don't believe it is impossible to get a visually better rendered curve. As example I have attached what I think the problems are with the rendering. From bottom I really get the curve that I want, its smooth and probably it is because about 3/4 pixels are used for overlap. The steeper the curve the less interpolation between step seem to happen as if the curve is defined at x=1, x=2, x=3, but the interpolation itself is only directional with the curve opposed to orthogonal with the adjacent content. Looking at the curve in outline mode, it also gives a glipse. One of the faq entries claimns you could work with a blur. I have tried a blur, and if you use it at 0.1 you basically achieve a very poor interpolated line. I would be interested what is possible with a border of 2,3 pixels wide converging to transparency. I wonder: - is it possible with one extra interpolation step to get a more visually attractive curve? - the faq mentions that pixel alignment is important, does this mean that the controlpoints, in all cases, must snap to the raster? [my own results with snapping are virtually the same] In a conversation at #cairo, some other suggestions where made such as gamma correct blending. From the rendering I saw here: <http://people.freedesktop.org/~sandmann/tigers/> I personally liked jinc the most. Stefan

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SVG security vulnerabilities
by Donna Benjamin 03 Mar '12

03 Mar '12

Hi all, Greg Knadison from the Drupal community just drew my attention to this presentation regarding the security issues associated with the SVG format. https://www.owasp.org/images/0/03/Mario_Heiderich_OWASP_Sweden_The_image_th… I thought it was very interesting, and others among you may also not have seen it before. cheers Donna -- Donna Benjamin - kattekrab.net Inkscape: Open Source Scalable Vector Graphics http://www.inkscape.org

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Ping Inkscape wiki User:Kris
by unknown＠example.com 01 Mar '12

01 Mar '12

First, thank you for the cleanup work you are doing on the wiki. It is much appreciated. Second, could you provide some content for User:Kris. It would be informative to know what brought you to the Inkscape project and what skills you intend to share. Once again, thank you for the work. It was needed.

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Fwd: Re: [CREATE] LGM 2012 workshop -- lib2geom
by Jasper van de Gronde 01 Mar '12

01 Mar '12

This came up on the CREATE mailing list, and I'm not sure how many people in Inkscape/lib2geom are reading that, so I'm forwarding it. Basically it has been suggested that it might be a good idea to have a lib2geom workshop at LGM, essentially to encourage people to use it (outside of Inkscape). -------- Original Message -------- Subject: Re: [CREATE] LGM 2012 workshop -- lib2geom Date: Thu, 1 Mar 2012 09:34:36 +0100 From: ale rimoldi <ale.comp_06@...2809...> To: create@...626... hi > Would any of our fabulous graphics programmers like to > have a workshop on using lib2geom at LGM? if somebody wants to make this true, he or she should submit a proposal to http://libregraphicsmeeting.org/2012/submit-a-talk today! ciao a.l.e _______________________________________________ CREATE mailing list CREATE@...626... http://lists.freedesktop.org/mailman/listinfo/create

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