- Inkscape Devel - Inkscape Mailman

Connecting 2 paths smoothly in code
by Papoj Thamjaroenporn 14 Dec '15

14 Dec '15

Dear Inkscape-devel, I have these two paths (Geom::Path, or two Piecewise<D2<SBasis>> if you want), and I would like to join them smoothly (C1, to be precise), in code. Is there an API provided to achieve this task? What I am trying to achieve is obvious to do using Node Tool by first “Join selected nodes" and then “Make selected nodes symmetric”, but I am not sure how to achieve this in code using Geom::Path easily because it doesn’t have a notion of “node” to manipulate. I can setInitial() or setFinal() or setPoint() manually, but since the feature in already there in the code, although in the parts I do not yet understand (PathManipulator), I figured I should ask. Thank you! Regards, _______________________ Papoj "Hua" Thamjaroenporn papojt@...3117...

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Inkscape wiki website down?
by Papoj Thamjaroenporn 13 Dec '15

13 Dec '15

Dear Inkscape-devel, Is the wiki down? Since yesterday, I have not been able to load content on any page in Inkscape wiki. It all looks like this: Regards, _______________________ Papoj "Hua" Thamjaroenporn papojt@...3117...

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Waht could make inscabe even better
by unknown＠example.com 11 Dec '15

11 Dec '15

Hello ! It's just, that I wish to push Inkscape even more .... Regard, I do not make something like "a request" ;-) But: There are many situations, where you just create a plain object in another layer, with the size of the document. Why not re-use the menu: "/edit/paste/document-size" ?? Dont blame, me, if this exists probably on another place ... Best regards, Manfred

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Knots vs CtrlPoint
by Martin Owens 11 Dec '15

11 Dec '15

Developers, I've just been scrutinising the code for guidelines, specifically the code that draws the little circle indicating the main co-ordinate of the guideline. What it looks like is back in 2009 the code src/display/sp-ctrlpoint code was a clone of the much older original code in src/display/sp-ctrlquadr which we've had since at least 2005. ctrlquadr draws a square using cairo, used by ui/tools/text-tool only ctrlpoint draws a circle using cairo, used by display/guideline only If we could replace these two instances with Knot objects, we should be able to remove this code completely? (11.8KB, 1150 lines) Are there any land minds you are aware of with this code? (somewhere it's being used without being able to find it?) For comparison, SPCtrlLine and SPCtrlCurve are used by pen-tool, mesh-tool, gradient-tool, text-tool and the measure-tool. So they're very well used in comparison. Best Regards, Martin Owens

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Lib2Geom: no matching function for call to 'assert_degree'
by Papoj Thamjaroenporn 11 Dec '15

11 Dec '15

Dear Inkscape-devel, I attempted to create a line segment using appendNew with 2 arguments (as suggested in the wiki <http://wiki.inkscape.org/wiki/index.php/WorkingWith2GeomFAQ>): line1.appendNew<Geom::LineSegment>(p1.pointAt(0.), p2.pointAt(0.)); but I got the error message: ../../src/2geom/bezier-curve.h:218:7: error: no matching function for call to 'assert_degree' assert_degree<2>(this); ^~~~~~~~~~~~~~~~ ../../src/2geom/path.h:740:23: note: in instantiation of member function 'Geom::BezierCurveN<1>::BezierCurveN' requested here do_append(new CurveType(finalPoint(), a, b)); I am not sure why this would be a problem here. The following line creation would work without this error message: line1.start(p1.pointAt(0.)); line1.appendNew<Geom::LineSegment>(p2.pointAt(0.)); which puzzles me because this leads to a call of assert_degree() as well, although the degree check appears to be the expected 1 instead of 2. In fact, is the line segment creation mentioned in the wiki “valid”? It seems to internally call LineSegment(finalPoint(), a, b) which would be interpreted as a quadratic curve. Thank you. Regards, _______________________ Papoj "Hua" Thamjaroenporn papojt@...3117...

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Fwd: [Inkscape-user] LGM 2016: Call for Participation
by C R 10 Dec '15

10 Dec '15

I'm definitely submitting materials to this from my portfolio (including Inkscape materials). What I'm wondering is, do we have a talk planned for Inkscape? Do we have a booth/information to hand out? Do we want any of these things? I'm local to the London area, so I'm able to help set up anything we'd like to do. At the very least I think we can do: Video presentations w/animation Fliers/cards. In addition to creating these items, I'm willing to foot the bill for things like fliers if we don't have project funds available for it. I can also get volunteers from the local Linux Drinks meetup group that I run to come help. Thoughts? -C ---------- Forwarded message ---------- From: Femke Snelting <snelting@...2319...> Date: Thu, Dec 3, 2015 at 3:32 PM Subject: [Inkscape-user] LGM 2016: Call for Participation To: inkscape-user(a)lists.sourceforge.net *Libre Graphics Meeting 2016: Other Dimensions* http://libregraphicsmeeting.org The eleventh annual international Libre Graphics Meeting 2016 will take place Friday 15th until Monday 18th April 2016 in London, UK. This yearly event is an occasion for teams and individual contributors/artists involved in Libre Graphics to work together, to share experiences and to hear about new ideas. By Libre Graphics we mean Free, Libre and Open Source tools for design, illustration, photography, typography, art, graphics, page layout, publishing, 3D modelling, digital making and manufacture, cartography, animation, video, interactive media, generative graphics and visual live-coding. The Libre Graphics Meeting is not just about software, but extends to standards, file formats and actual use of these in creative work. LGM has become the place in which they can discuss their projects, coordinate their efforts and, crucially, to meet in person. Participants in the LGM include developers, designers, academics and activists from around the world, who are all passionate about Free/ L ibre graphics software and technology. *State of the Libre Graphics Union* We begin each meeting with a joint session that brings together all things that have happened in our wide landscape over the last year. So, instead of slots in the schedule for general updates on each Libre Graphics software project, we invite every team present at LGM to submit two slides (maximum), with a short explanatory text that showcases the leaps forward that has been made over the past year. For first-time presenters and particular big or new topics/features in established projects, we encourage additional stand-alone submissions. *Special focus: Other Dimensions* In Toronto we celebrated the first decade of LGM, reflecting on the past and considering the future. For the 2016 edition of LGM we continue speculating and will expand Libre Graphics into Other Dimensions. We are looking for presentations and workshops that explore the dimensions of space and material: 3D modelling and animation, Libre architecture, Open Source product design and other fields of digital making and manufacture. We are also seeking contributions that offer reflections on the 'other dimensions' of open source communities and that engage with FLOSS tools in various contexts including but not limited to teaching, learning, practice and co-production. This represents a desire to address the future sustainability of the Libre Graphics movement, through a growth of the core projects and topics that will, we hope, allow us to welcome more and more FLOSS projects and participants to our community. We are looking for: * In-depth presentations of Libre Graphics code-contributions * Showcases of excellent work made using Libre Graphics tools * New and experimental projects in this area to meet the wider community, including those in the field of 3D design and making * Reflections on the activities of existing open source communities in either the production of Free, Libre and Open Source tools or their use Available formats (times include Q&A): * Entry for State of the Libre Graphics Union (1-2 slides) * Presentations (20 minutes) * Workshops (1 or 2 hours)* * Birds Of a Feather (BOF), discussion meetings or Hackathons (2 hrs or more) * Lightning talk (7 minutes, selected at the event unconference style) *Practical Details* Submission deadline: 10 January 2016, content selection notification by end of January 2016. http://libregraphicsmeeting.org/2016/call-for-participation/ http://libregraphicsmeeting.org/2016/submit-proposal/ ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Inkscape-user mailing list Inkscape-user(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/inkscape-user

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node sculpting behavior
by Brynn 10 Dec '15

10 Dec '15

Hi Friends, When I first started using Inkscape, which was version 0.44, node sculpting had a different behavior than it has now. I want to ask if it would it be possible to provide the previous behavior, as an option, perhaps using key modifier, or option on the control bar? I'll try to describe, with attached screenshot (sculpt2.png). You can see that dragging the right end node, with Alt key results in the nodes wider apart in the middle, and closer together on the ends (no matter whether I dragged from the right or left side, the result is the same). I'm not sure exactly in which version this changed. But previously, dragging the same right end node would result in nodes wider apart, the closer they are to the node being dragged. Since I can't show an example, imagine it's the same right end node, and it would behave much like a rubberband...or elastic string -- stretched more near where the force is applied, and less on the other end. And so the nodes would be progressively closer together, the further they were away from the node being dragged. One thing I used to like to do, was find an end node of a spirogram. Select all nodes except the other end, then Alt + drag the first end, and it would unravel the spirogram from one end to the other. One of the first images I ever made with Inkscape is also attached, the unravelled spirogram. You just can't do that anymore, with Inkscape, afaik. To be honest, I loved that old behavior and used it a lot. I haven't found many uses for the current behavior. I guess it can make a good bell curve. But I think both behaviors are useful. Would it be possible to provide this optionally? If so, I'd like to make that a feature request. (Unless it already is??) Thank you very much, brynn

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The unit of stroke width in Inkscape UI, and 'px' unit
by Papoj Thamjaroenporn 05 Dec '15

05 Dec '15

Dear inkscape-devel, Quick question: what is the unit of the stroke width in the Inkscape UI? I am talking about this seemingly unit-less number: When looking at StrokeStyle, it seems to match ‘px’ (SVG user unit). If this is indeed a 2 px width, shouldn’t we add the unit after the number like showing units after W, H, X, Y to make everything clearer in the UI? Regards, _______________________ Papoj "Hua" Thamjaroenporn papojt@...3117...

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Brand new crash with text blocks
by Ivan Louette 04 Dec '15

04 Dec '15

Hi ! I lack of time to fill a bug because I must leave now (otherwise I will do it in the evening). With the last yesterday trunk Inkscape crashes if I try to change the font size to a bigger one which exceeds the size of the text block. For example in attached file. I use this kind of feature daily and never had this crash before yesterday. ivan On Kubuntu 14.04 64 bits

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Re: [Inkscape-devel] batch able to ungroup PDF objects and change colors from RGB into CMYK with lookuptable
by Maxence MELIN 03 Dec '15

03 Dec '15

Nobody has any idea (or existing scripts to share) to begin the script I need ? De : Maxence MELIN Envoyé : mercredi 2 décembre 2015 10:16 À : 'inkscape-devel(a)lists.sourceforge.net' Objet : batch able to ungroup PDF objects and change colors from RGB into CMYK with lookuptable Hi ! I am a beginner with Inkscape but I know it's very powerful ! I have a RGB PDF file with grouped objects and I want to develop a script that : - is able to process several PDF files (e.g. all PDF in a folder) - ungroup the objects of each PDF file - convert RGB PDF to CMYK PDF using a txt lookup table where I can set myself the values (I don't use a lot of colors but I have to get precise CMYK values) I have no idea how to begin such a script, somebody can help to get me started ? Thanks ! Max

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Extended xml editor
by A Sedlak 02 Dec '15

02 Dec '15

Does anyone know how to implement extended xml tag editor in inkscape? Before several years I wrote system for embroidery pattern generator from svg based on private xml tags, but simple XML editor included in inkscape makes it cumbersome. Some very basic functionality of this stitch generator can be seen at: https://youtu.be/VKle5ApsMnA Editor should have functionality very similar to interface of external scripts but before showing dialog, it should first collect actual data from svg by calling proper extension script method (eg .getparams() ) and prepare file similar to inkscape dialog definition file.inx with <param name= ... > and then dynamically generate dialog to allow user modify sewing parameters, after that call classical extension .effect() method to do changes in svg. I want to implement it but I'm totally lost in inkscape source code. I think that all functionality is already somewhere in inkscape but I need someone to show me the way. Tony

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Next Inkscape board meeting.
by Tavmjong Bah 02 Dec '15

02 Dec '15

Hi all, The next Inkscape board meeting is schedule for December 4th at 20:00 UTC/Noon PST/21:00 CEST: http://www.timeanddate.com/worldclock/fixedtime.html?month=12&day=4&yea r=2015&hour=20&min=00&sec=0&p1=0 All member of the Inkscape community are welcome to participate. We meet on the #inkscape-devel IRC channel on Freenode. For more details see: http://wiki.inkscape.org/wiki/index.php/Board_Meetings Tav

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Lock guides branch
by Jabier Arraiza 02 Dec '15

02 Dec '15

Hi to all. I just propose to merge the lock guides branch. ¿Any one want review it? https://code.launchpad.net/~inkscape.dev/inkscape/lock_guides This allow to lock a guide in the guide dialog. This is part of a future work using gides. In my mind I want to link optionaly a guide to a item or maybe more than one. If this guide is linked, only show if the element/s is selected. Any one think is a bad idea because it add a extra level of complexity on guide usage to the benefits it have? Anyway is not a blocking thing to my proyect but it benefits a lot of it. If any one is interested in the secret proyect, is a LPE applied to groups, this lpe lock for the crossing guides and slice the content of the group into sliced subgroups. Cheers, Jabier.

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Potrace
by Jabier Arraiza 02 Dec '15

02 Dec '15

Hi to all!!! I notice in Debian stretch no trace bitmap option showed in the menu if Potrace aren't instaled. ¿Maybe is beter show it always, and if selected, fire a warning message? Cheers, Jabier.

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batch able to ungroup PDF objects and change colors from RGB into CMYK with lookuptable
by Maxence MELIN 02 Dec '15

02 Dec '15

Hi ! I am a beginner with Inkscape but I know it's very powerful ! I have a RGB PDF file with grouped objects and I want to develop a script that : - is able to process several PDF files (e.g. all PDF in a folder) - ungroup the objects of each PDF file - convert RGB PDF to CMYK PDF using a txt lookup table where I can set myself the values (I don't use a lot of colors but I have to get precise CMYK values) I have no idea how to begin such a script, somebody can help to get me started ? Thanks ! Max

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Feature proposal to src/extension/internal/grid.cpp
by Timo Korthals 01 Dec '15

01 Dec '15

Dear devs, because of the lack of the feature, that gids can be created just in px-units, I patched (from my pov) a nice feature into "src/extension/internal/grid.cpp". My question regarding this feature on stackexchange [1] has some pretty high interest. You'll find the patch attached to this e-mail and a brief documentation to this feature here [2]. Would be nice to see something like this (or similar) in the near feature. Greetings, Timo [1] http://graphicdesign.stackexchange.com/questions/21611/drawing-grid-in-inks… [2] http://graphicdesign.stackexchange.com/a/63799/15720 -- Timo Korthals, M.Sc. Universität Bielefeld AG Kognitronik & Sensorik Exzellenzcluster Cognitive Interaction Technology (CITEC) Inspiration 1 (Zehlendorfer Damm 199) 33619 Bielefeld - Germany Office : 3.037 Phone : +49 521 106-67368 eMail : tkorthals@...3296... Internet: http://www.ks.cit-ec.uni-bielefeld.de/

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Offset LPE
by Jabiertxo Arraiza Cenoz 30 Nov '15

30 Nov '15

Hi to all. This is a mail about the "new" LPE offset I made with the help of the previous work of Liam P. White. in Join Type LPE and the Krzysztof Kosiński on new boolops code. The video: https://www.youtube.com/watch?v=xfzvXD9jrAk This code is slow than previous (non lpe) with Livarot, I try to improve it but is slower. By the other side it bring to the user the ability to use non rounded join types on increment offseting. Any way I couldent full remove Livarot from the code want, is using to hadle nonzero fills and for simplify the paths. Not sure about the LPE, I spend a lot of effort improving it, but i couldent get it like Livarot one and think is a blocking problem to substitute SPOffset code like Mc- want, but maybe can be a first step to other dev... Another way can redone or mix it with Libarot but maybe is a back step. But if is not a problem, and while getting better result, we can do a LPE to offset like SPOffet do, allowing to remove SPOffset from the code. Also I hope could make join types diferent than rounded except extrapolated arc :(. Cheers, Jabier.

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New Potrace dependency
by Alex Valavanis 29 Nov '15

29 Nov '15

Hi All, Any objections if I go ahead with this merge? https://code.launchpad.net/~valavanisalex/inkscape/fix-1156664 It will introduce a soft dependency on an external copy of libpotrace. It will still build without the external library, but without the trace bitmap/flood tools. Windows Devlibs will need to be updated separately. Cheers, AV

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Problem with paths
by Jabiertxo Arraiza Cenoz 27 Nov '15

27 Nov '15

Hi to all. Working with a function that split into subpaths all self crossings of a path, I throw a LPE exception in path.portion I call it with a value for example "path.portion(0,2.9345)" and path size == 4. I think I dont get any continuity problems when creating a portion, anyway it happends, also if active setStitching to the path Here are the function: https://inkscape.org/en/gallery/item/7011 I comment in the code where the exception happens "std::cout << "EXCEPTON HERE\n";" Next logs to this line don't show if exception. Any help is welcome, cheers, Jabier.

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Artivity patch for Inkscape
by Sebastian Faubel 27 Nov '15

27 Nov '15

Hello everybody, a few months ago I contacted you the project we're currently doing with the University of the Arts, London. Our 'Artivity' project aims to produce an open source activity tracking platform similar to Zeitgeist. However, we do not only capture high level events such as 'created file' or 'visited website' but also store provenance data about how a document was created and which resources were used in the process. We don't have an official website yet, but if you're interested: here's our repository [0] and a recent article about the current state of the art [1]. The project is still in a rather early stage, but the platform has matured to a point where we think it's worth spreading the word. I asked if it was possible to write extensions for Inkscape in C++. Since this does not seem to be possible at the moment, I want to ask you if you accept a patch to integrate our Artivity extension upstream. I appended a patch file to this e-mail. Please have a look at it and tell us what we have to change in order for you to accept it. The patch is done against the current release tarball of Inkscape (v0.91). You can apply the patch by unpacking the tarball in a directory and the following command: patch -p0 < inkscape-0.91-1artivity0.patch Our 'extension' is only compiled when Inkscape is configured with the option '--enable-artivity'. So the build should behave as normal when configured without this option. If you want to build the extension you will need libartivity [2] installed on your system. The only dependency for building the library is libcurl. So you'll need to install the libcurl development headers. Everything else should be pretty straight forward. I'd really love to have the Artivity extension to be a dynamically loaded plugin. If there's any progress on defining a plugin API for native C++ extensions I'll volunteer in implementing it. I am looking forward to your comments. With best regards, Sebastian [0] https://bitbucket.org/semiodesk/artivity [1] http://www.semiodesk.com/2015/11/23/artivity-available-windows-mac/ [2] https://bitbucket.org/semiodesk/artivity/downloads/libartivity-0.8.10.tar.gz *Semiodesk GmbH | *Werner-von-Siemens-Str. 6 Geb. 15k, 86159 Augsburg, Germany | Phone: +49 821 8854401 | Fax: +49 821 8854410 | www.semiodesk.com This e-mail message may contain confidential or legally privileged information and is intended only for the use of the intended recipient(s). Any unauthorized disclosure, dissemination, distribution, copying or the taking of any action in reliance on the information herein is prohibited. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, or contain viruses. Anyone who communicates with us by e-mail is deemed to have accepted these risks. Semiodesk GmbH is not responsible for errors or omissions in this message and denies any responsibility for any damage arising from the use of e-mail. Any opinion and other statement contained in this message and any attachment are solely those of the author and do not necessarily represent those of the company.

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User account for Inkscape Wiki
by Eduard Braun 26 Nov '15

26 Nov '15

Hi all, I'd like to request a user account for http://wiki.inkscape.org/ I noticed documentation on INX parameters <http://wiki.inkscape.org/wiki/index.php/INX_Parameters> is quite outdated and I want to update it. Best Regards, Eduard

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Inkscape's software design
by Jorge Lopez 26 Nov '15

26 Nov '15

Hello, I'm studying a Master Degree in Computer Engineering and we have to make an article about an Open Source program (Inkscape in my case). In this article we are suposed to interview some developers in order to know more about software design in the project they are working on, so I'm looking for some people willing to answer some simple questions about software design on Inkscape's development. If you are interested, please contact me ( jorgeludc@...400... ). Thanks in advance!

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Fwd: Save in JPG files
by Bruno de Campos 23 Nov '15

23 Nov '15

Hi, I'm using Inkscape and I realize that the program does not save in .jpg format. This is kinda disappointing because I have to open another program to save my file in a proper format. Do you have any tips or extensions or any updates that I could use to save in jpg format? PS.: I'm using Version 0.91 Thanks in advance for your attention, -- Bruno de Campos

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Offset LPE
by Jabiertxo Arraiza Cenoz 21 Nov '15

21 Nov '15

Hi to all, working on offset LPE by "accident" y discover the way to remove ovelaps, so the code on evenodd mode is ok. Now I need to handle correcly nonzero cases and make some tweaks to the knot handler. Krzysztof, Liam sorry for the noise and thanks for your works! Cheers, Jabier.

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LPE: Use sigc++ from PathParam to modify another Param
by Papoj Thamjaroenporn 21 Nov '15

21 Nov '15

Dear Inkscape-devel, I would like to find a way to trigger a change from PathParam and change another Param in the same LPE effect. What is the correct way of doing this? What I have attempted: I noticed that PathParam already provides a bunch of useful signals, like signal_path_pasted (when a new path has been pasted in placed of the existing path in PathParam). So I just set up in my LPE effect like: myPathParam.signal_path_pasted.connect( sigc::mem_fun(*this, &LPEWrinkleStretch::triggerAChangeInPeakPointArrayParam) ); And in my own method, I just modify another WrDmPeakPointArrayParam with set_and_write_new_value(). Nothing fancy here. Although I have made sure that the change happened and the resulting change was what I expected, this notification-callback approach seems to break the LPE entirely: now interacting with anything in the effect afterward (moving other unrelated handles, changing values, etc) will not update the LPE at all, although the doEffect() method is still called constantly. So obviously, I am doing something wrong here. I have noticed that there is another effect, lpe-bspline, that makes use of the callback mechanism to update the effect. I understood the basic mechanism: you process path effects normally, create a result in SVG format in text, save that text onto the internal XML “Repr” directly, and then you provide some sort of save state for undoing. However, I am not sure how to do this for another Param (not the resulting path from the LPE effect). Do I write my own version of saving such param into the internal XML tree directly? I don’t really have a new widget, but an update should be triggered after clicking on “Paste path” button in PathParam, so do I have to override newWidget() method? Can someone also explain to me how DocumentUndo::done() works (what the variables are)? Thank you for always being supportive and helpful. Regards, _______________________ Papoj "Hua" Thamjaroenporn papoj@...3117...

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