September 2016 - Inkscape Devel

win32 build working again
by Bob Jamison 08 Apr '24

08 Apr '24

The win32 build, which was broken for the weekend, is working again. I just made a "manual autobuild" again, so that we can see how it looks on Windows: http://troi.titan-aeu.com/~rjamison/inkscape/builds/ Bob

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Inkscape for embroidery
by Michael Soegtrop 26 Nov '16

26 Nov '16

Dear Inkscape Developers, I added a few features to Inkscape for use in embroidery, because the commercial tools available don't offer the artistic flexibility I want. I would like to have your opinion on if you think it makes sense to integrate such functionality into the Inkscape mainline, or if it would be too much of a stretch. It boils down to some LPEs and an export format. The commercial tool I have from Bernina (a Swiss sewing machine manufacturer) is based on Corel Draw. Below is a list of the additions I did / I am working on. Please let me know what you think about this. With these additions, Inkscape offers substantially more flexibility than affordable commercial SW (and affordable here means 500..1000$). Best regards, Michael 1.) Ways to fill an area with clusters of contours Inkscape already offers 2 path interpolation LPEs which allow this. I plan to add a 3rd one which creates a set of equidistant inset/outset paths. 2.) A way to connect sub path of a path into one continuous path I added an LPE to do this with various options of end interpolation. Maybe if I use bool-ops I need to extend it with some sort of sorting, cutting and auto reversing mechanism to keep the connections short. 3.) A way to cut a path into stitches (straight line segments) in a controlled way. I added an LPE to do this, but it is quite primitive as yet. 4.) Bool ops on paths because in embroidery you cannot simply hide an object below another one. I just added a bool-op LPE for this - needs some additional work to cut contours against a closed path. 5.) A tool to convert graphics output to some format an embroidery / sewing machines can read. I wrote an external tool to convert HPGL to a common embroidery format (stitch/DST), but could also integrate this into Inkscape. 6.) Maybe a tool to hide connections between path segments below filled areas. For a sewing machine it is quite complicated to do a "pen up" - it has to cut the threads, so one typically hides connection paths below some embroidery to avoid thread cutting. Currently I do this semi-manually. Doing this automatically might be quite complicated.

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Thanks for your votes! We have our new "Draw Freely" font!
by C R 02 Nov '16

02 Nov '16

And the winner (by quite a bit, actually) is Euphoria Script! Thanks to everyone for the votes and helping us choose a new open font. The new font will be deployed to the website and relevant graphics. You can start using it now in your inkscape-related materials by downloading it here: (includes font and ofl license files). http://www.opendesignstudio.org/inkscape/euphoria_script.zip Have fun, and thanks again for the help! -C

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Turned off Github Issues
by Martin Owens 05 Oct '16

05 Oct '16

Dear all, Hopefully this won't effect anything, but the not-yet in use github page had it's issues tracker switched on and was collecting bug reports. https://github.com/inkscape/inkscape I've gone ahead and switched it off, but there was 10 or so issues that we may have to think about translating to launchpad. Best Regards, Martin owens

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performance problems and possible remedies?
by Yale Zhang 29 Sep '16

29 Sep '16

Hi. I'm using Inkscape to author a comic and the slow speed for certain things is very annoying. I'm already have OpenMP turned on and using 4 cores. 1. *large blurs are slow* - I'm an expert with writing SIMD code, so I was thinking about vectorizing the Gaussian IIR filter with SIMD intrinsics, even though it's harder than for a FIR. But I noticed there isn't any SIMD code in Inkscape so does that mean it's something to avoid. I'm pretty sure no current compiler is smart enough to vectorize it, and besides, Inkscape is compiled with -O2, meaning -ftree-vectorize isn't on by default. 2. *when there's a large image (raster based) background - scrolling in a zoomed region is very slow* I compiled the latest 0.49 code with GCC profiling and it shows this: 33.98 22.47 22.47 exp2l 21.29 36.55 14.08 log2l 17.57 48.17 11.62 pow 7.12 52.88 4.71 658 0.01 0.01 ink_cairo_surface_srgb_to_linear(_cairo_surface*) 6.72 57.32 4.44 563 0.01 0.01 ink_cairo_surface_linear_to_srgb(_cairo_surface*) 5.51 60.96 3.64 1216 0.00 0.00 Inkscape::Filters::FilterGaussian::~FilterGaussian() 5.23 64.42 3.46 internal_modf 0.59 64.81 0.39 _mcount_private 0.41 65.08 0.27 __fentry__ 0.12 65.16 0.08 GC_mark_from 0.09 65.22 0.06 5579 0.00 0.00 Geom::parse_svg_path(char const*, Geom::SVGPathSink&) 0.06 65.26 0.04 35320 0.00 0.00 bounds_exact_transformed(std::vector<Geom::Path, std::allocator<Geom::Path> > const&, Geom::Affine const&) 0.06 65.30 0.04 8 0.01 0.01 convert_pixbuf_normal_to_argb32(_GdkPixbuf*) 0.05 65.33 0.03 885444 0.00 0.00 std::vector<Geom::Linear, std::allocator<Geom::Linear> >::_M_fill_insert(__gnu_cxx::__normal_iterator<Geom::Linear*, std::vector<Geom::Linear, std::allocator<Geom::Linear> > >, unsigned long long, Geom::Linear const&) The cost is absolutely dominated by ink_cairo_surface_srgb_to_linear() and ink_cairo_surface_linear_to_srgb(). My first instinct was to optimize those 2 functions, but then I thought why are those even being called every time I scroll through the image? Why not convert the images up front to linear and stay that way in memory? If that can't be done, then my optimization approach is: 1. replace ink_cairo_surface_srgb_to_linear() with a simple 3rd degree polynomial approximation (0.902590573087882 - 0.010238759806148x + 0.002825455367280x^2 + 0.000004414767235x^3) and vectorize with SSE intrinsics. The approximation was calculated by minimizing the square error (maxError = 0.313) over the range [10, 255]. For x < 10, it uses simple scaling. 2. replace ink_surface_linear_to_srgb() with a vectorized implementation of pow(). Unlike srgb_to_linear(), a low degree polynomial can't be used due to the curve having larger high order derivatives. An alternative would be piece wise, low order polynomials. The main question I have is what degree of accuracy is desired? Certainly, it doesn't need double precision pow() since the input is only 8 bits! Is +- 0.5 from the true value (before quantization) OK or do people depend on getting pixel perfect results? UJ

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YAML (libyaml-dev, libyaml-0-2) version >= 0.1.7-1 becomes hard dependency for inkscape
by Dmitry Zhulanov 29 Sep '16

29 Sep '16

I'm going to merge in my "xverbs" branch which requires YAML. So it's still possible to guard all code behind a WITH_XVERBS if we cannot add that lib as a hard dependency, but in the current state of things yaml would become a hard dependency of inkscape. If anyone has any problems with that (compatibility on some platforms maybe?), please tell before the merge Best regards, Dmitry Zhulanov

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xverbs
by Dmitry Zhulanov 26 Sep '16

26 Sep '16

Hi, all! Im a game developer and using the inkscape for layouting my game screens. Loading_screen_layout.svg one of them. It have g with id pause_button and rect with id sandclock_bound which I use for animation placement. The verbs feature which inkscape already have is have some limitations. The MAX_PATH for example. Also some verbs required user interactions, so I need some eXtended verbs here. Using python script I have load layout as xml and collecting element-id's of interactive elements with "onclick" attribute, for example. Using this element-id list I generate .yaml, which is some sort of batch file. Here is the .yaml file which is used with Inkscape to clean up layout and put button image in separated file with pause_button.svg filename. Also I count undoable actions to restore state generating verb EditUndo. command: inkscape -B loading_screen_layout.yaml ----------- loading_screen_layout.yaml --------- run: - xverb-id: XFileOpen, loading_screen_layout.svg - xverb-id: XUndoLabel, fresh_document - xverb-id: XSelectElement, pause_button - verb-id: EditInvert - verb-id: EditDelete - verb-id: FitCanvasToDrawing - xverb-id: XFileSaveAs, pause_button.svg # save with stupid name - xverb-id: UndoToLabel, fresh_document - xverb-id: XSelectElement, pause_button - verb-id: EditDelete - xverb-id: XUndoLabel, fresh_document - xverb-id: XSelectElement, sandclock_bounds - verb-id: EditDelete - xverb-id: XUndoLabel, fresh_document - xverb-id: XFileSaveAs, loading_screen_layout_release.svg # save with stupid name - verb-id: FileQuit ------------------ CUT HERE -------------------- I guess you can get readonly access on my launchpad page. https://code.launchpad.net/~dmitry-zhulanov/+junk/inkscape-xverbs Code is tested with mingw+windows7+VS2010 sdk. If you would like to merge the feature, I will clean up code to conforming code style, remove printf's & so on Any help or advice are appreciated! P.S. sorry for my bad english :) Best Regards, Dmitry Zhulanov

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Introduction
by Justin LaRose 25 Sep '16

25 Sep '16

Hello All - I wanted to take a minute to introduce myself on here, my name is Justin LaRose and I hope to soon be a contributor and start working on some code. I've worked mainly with C# and Visual Basic in the past but am looking forward to working with C++ and learning more about it. I was having some issues with dependencies when trying to build the developer instance on my laptop (Ubuntu 16.04) and was wondering if anyone might have some time to help me get everything built so I can start to work on some bugs? I'm looking forward to getting to know everyone better as I learn more about the project and the code base. Thanks! Justin LaRose

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Here's a crashing .svg file
by Miguel Lopez 24 Sep '16

24 Sep '16

I'm just gonna leave a crashing .svg file here for developers to look at since it been crashing upon opening, and I was using mirror, rotate copies extension. It crashed when I attempted to scale the entire watch, and then I couldn't open earlier version of the watch. Oh, and I think that arrange tool might need a "center of page" instead of having to type in axis for the rotate part. That would make this watch a lot easier. Other than that, I'm really liking where Inkscape is getting at. I must say that I am using it alongside with Illustrator to get the best of both world.

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pen+pencil, shape: from clipboard, color (last used style) don't work
by Kerstin Marzina 24 Sep '16

24 Sep '16

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Code complexity survey
by Vard Antinyan 22 Sep '16

22 Sep '16

Dear inkscape developers, We have undertaken a task to assess code complexity triggers and generate recommendations for developing simple and understandable code. Our intension is to share the results with you, developers, so everyone can learn the triggers behind complex software. We need your help for rigorous results. My request to you is - if you get 5-10 min. time, would you please consider to answer the questions of this survey on code complexity? https://goo.gl/forms/h9WXZ8VSEw7BUyHg1 You are welcome to learn preliminary results through this link: https://www.facebook.com/SoftwareCodeQuality/photos/?tab=album&album_id=163… The results will be shared in a public webpage and everyone possible will be invited to learn and discuss them. Your knowledge and experience is vital for achieving substantial and generalizable results, and your effort is much appreciated! Sincerely Vard Antinyan PhD candidate in University of Gothenburg, Sweden Tel: 0046317725707

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Gimp to SVG · Batch Mode
by Jabier Arraiza 12 Sep '16

12 Sep '16

Hi, I just commit a github to export images to SVG. Currently support: Batch mode (GUI and Command line) Export jpg, png,gif,bmp,tiff Export a XCF files (With nested layers, text as image or text...) https://github.com/jabiertxof/Gimp-to-SVG I hope you like it. Cheers, Jabier.

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[UX] Bend handle improvements
by Jabier Arraiza 09 Sep '16

09 Sep '16

Hi to all. I just make this patch that maybe improve the UX in bend -later in pattern along path- LPE. Basialy, the handle to in/decrease width, now can be moved freely instead restricted position. Please comment if this way is better than currently (fixed direction). Cheers, Jabier.

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Humble request
by Sai Harsh Tondomker 05 Sep '16

05 Sep '16

Dear Sir/Mam, I am Sai Harsh B.Tech 4th year student from India, I want to contribute to inkspace. Could you please guide me how I can proceed. My technical skills are moderate in Python and C. My work experience can support this statement, I was T.A for Data structures and Algorithms for 1st and 2nd year undergraduate student respectively. I did my internship in MIT media lab in which most of my code is in Python. I am ready to learn new things. Awaiting for your response. Best Regards, Harsh Sent with MailTrack <https://mailtrack.io/install?source=signature&lang=en&referral=saiharsh.t13…>

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CMake now working on Windows
by Sebastian Faubel 05 Sep '16

05 Sep '16

Hello everybody, I submitted a merge request of my Inkscape branch yesterday. Thanks to Marc it has already found its way into trunk - big thank you for the quick review. The branch I submitted now has full support for compiling Inkscape on Windows with 32-Bit and 64-Bit environments. It also supports out of source builds and should also work with Unix llike command lines such as Cygwin and MSYS. After weeks of investigation I managed to get locales to work and have an executable icon along with all application icons. Actually, the only thing that it distinguishes from a btool build now is that it does not (yet) produce the inkscape.com console binary. However, that should not be a big deal. In all other regards it should be ready for testing and packaging. I already updated the Wiki page with the new compilation instructions. Again, thank you Marc and hopefully we're a step closer now to a 0.92 release on all platforms. ~Sebastian *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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Re: [Inkscape-devel] [Bug 1258842] Re: No page for vectors vs. Bitmaps
by ugajin 02 Sep '16

02 Sep '16

@Martin Owens https://bugs.launchpad.net/inkscape-web/+bug/1258842 You are not as disappointed as I am with you. Irregular is right. How dare you speak to me this way. You were clearly told, before you went ahead and made the page live, that I did not have a working picture plugin. I am not responsible if you do not provide the tools needed to upload image files. It was and/or ought to have been clear to anyone with eyes to see, that the test page relied on external links, and you were directed to this fact. Further, I did not ask you to download files from my web-site. In fact you downloaded the said files without asking, and without my consent. Is this how you generally behave, and treat artists? If so, shame on you, and shame on you for doing it to me. I provided links to those resources only, and not the resources themselves, Inkscape have no claim on them, or right to host those image files. Please remove them, and please refer this matter to the Board. It seems to me, it was a very small thing indeed, especially in the circumstances to ask that someone replace dirty files with clean ones, not least because I did not have the tools, and/or permissions to replace them at that time. We were so close to getting the thing right, and your hostile reaction is totally innapropriate. I have put a lot of hard work into this project, and I have had few thanks for doing so. As a reward for my effort, you have taken artwork which does not belong to you, and in addition you removed my editor priviledges. I cannot trust, or work with you again. Whatever your problem is, it should be with yourself with who you are disappointed, and to be treated and spoken too, by you in this way, is wholly unacceptable. Thanks to you, I have deleted, the guides, and viewBox extension files from my resources directory. I am more dissapointed than you can possiblt know, or imagine, and you can of course file your own bug report. I will not be the assignee for the 'No page for vectors vs. Bitmaps' bug, thank you. -u ---- On Fri, 02 Sep 2016 16:23:22 +0000 Martin Owens <doctormo@...400...> wrote ---- @ugajin - The files you provided on the page were published as live. I'm disappointed that you have come back to me now, after the publish time, to tell me the graphics were not the final versions. This is highly irregular and I will not change the files at this time. When we come back to this page in the future, we can update the graphics. But I have committed the page in it's current state and with that I complete this long bug report as Fixed Released. Please open another bug report to update the graphics. Maren if you need to track the svg picture plugin issue, or a bug report to make our own plugin, please go ahead. ** Changed in: inkscape-web Importance: Undecided => Low ** Changed in: inkscape-web Status: New => Fix Released ** Changed in: inkscape-web Assignee: (unassigned) => rant (ugajin) -- You received this bug notification because you are subscribed to the bug report. https://bugs.launchpad.net/bugs/1258842 Title: No page for vectors vs. Bitmaps Status in Inkscape-website: Fix Released Bug description: This page here: http://quasdar.deviantart.com/art/Bitmaps-vs-Vectors-323184682 Looks like the kind of information we may want on the website. To manage notifications about this bug go to: https://bugs.launchpad.net/inkscape-web/+bug/1258842/+subscriptions

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Stroke to path
by Jabiertxo Arraiza Cenoz 02 Sep '16

02 Sep '16

Hi to all. This is a requets tor change "path->stroke to path" menu item to another definition -string- based in a new code. My proposal is path->to path This new code basicaly do a convert stroked item to path retaining paint-order, fills and markers. The patch is here: https://bugs.launchpad.net/inkscape/+bug/1556592 Cheers, Jabier.

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