August 2020 - Inkscape Devel - Inkscape Mailman

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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Regarding the serialization of Spiro control points
by Fred Brennan 28 Mar '22

28 Mar '22

Greetings, I write from the FontForge project. Of particular interest to me is the Spiro spline feature, which was originated around ten years ago by Raph Levien. One thing I'd like to add, (which would benefit both our projects,) is the ability of FontForge to understand the Inkscape Spiro serialization format. However, there are several things about the format which to me as an outsider appear to be defects serious enough that I have no idea how to even *import* these splines correctly, much less export our Spiro splines to this format. I would very much like to support the _de facto_ standard Inkscape has originated of supporting Spiro in SVG, but I am lost. George Williams, FontForge's original author, noticed this defect over eleven years ago.[1] Things are virtually unchanged since then, I checked `git blame`. Spiro has five point types, not including beginning and ending points. They are: * G4 curve (o) * G2 curve (c) * Corner (v) * Left Constraint ([) * Right Constraint (]) The ASCII single letters are the normal method of Spiro serialization, as championed by Raph Levien and by us in FontForge. Inkscape seems to create what I will call a "pseudo-SVG path". So, it is not really an SVG path, but rather is an SVG path which undergoes transformation into the typical Spiro format. Inkscape stores this in the "original-d" attribute. So, given a Bezier spline with control points defined as (x, y, c1, c2), Inkscape interprets a control point with only (x, y) to be a corner, meanwhile a control point with all four is a G4 curve, and (x, y, c1, NULL) is a left constraint while (x, y, NULL, c2) is a right constraint. I can probably overcome this, although George Williams was right to be skeptical of this format. There is no way I can see to define a G2 curve in this strange "original-d" format. Thus, this email. I write to ask a few things. I suppose first of all, what are the chances that we can convince you guys to store Spiro splines in plate[2] format, or another widely accepted Spiro serialization format? Second, if we cannot convince you to do that, how do I export FontForge spiros which contain G2 control points to Inkscape's original-d format? It's not possible, yes? So should I just silently fail and save them as G4? The curves will not be the same if I do that. Should I disallow export to SVG w/Spiro if glyph contains G2 control point? That seems a steep cost that will just confuse my users, so perhaps I should abandon the whole thing if it comes to that. Cordial regards, Fredrick Brennan (@ctrlcctrlv) [1]: https://narkive.com/63FADpG3.4 [2]: https://levien.com/garden/ppedit/README, section "Plate files"

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Dev meeting tomorrow !
by Marc Jeanmougin 08 Sep '20

08 Sep '20

Hi all ! Our next dev meeting will take place tomorrow (Sep 1st) at 5pm UTC (7PM Europe) -- Marc

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It's a Board Meeting!
by Ted Gould 01 Sep '20

01 Sep '20

Howdy Inkscapers! We have a board meeting this week, and you're invited! It'll be Friday at high-noon Texas-time. Some of you may not be fortunate enough to live in Texas, if so you can find the time in your timezone here: https://www.timeanddate.com/worldclock/fixedtime.html?iso=20200904T10&p1=202 For an overview of what we'll be talking about you can find the agenda in the Wiki: https://wiki.inkscape.org/wiki/index.php?title=Board_Meetings See you there! Ted

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limitations of CSS and SVG animations.
by NASA Jeff 27 Aug '20

27 Aug '20

Browser support for animated SVG Animated SVG files with JavaScript as the animation type are supported by all major browsers. This means that your animation will work and look the same in Chrome, Firefox, Safari, and Edge. Unfortunately, if you choose CSS, not all properties work the same in these browsers. Please see the differences below: AnimationChromeFirefoxSafariEdge Morph 53+ - - 74+ Filter - Yes - - Move on path (linear) Yes Yes Yes Yes Move on path (curved) 56+ 72+ - 74+ *CSS chart* Also good to know: Safari doesn't support negative values for the dash-offset property. You can avoid using negative values by following the instructions here <https://www.svgator.com/help/technical-issues/path-animation-issues-in-safa…> . Color transition animation is limited for JavaScript and CSS, too. You can animate a smooth color transition from color to color, but not from gradient to color or from color to gradient. More articles: The exported file looks different <https://www.svgator.com/help/technical-issues/exported-file-looks-different> Clipping mask not visible in Safari <https://www.svgator.com/help/technical-issues/clipping-mask-not-visible-in-…>

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Inkscape Developer Meeting: Tomorrow
by doctormo＠gmail.com 26 Aug '20

26 Aug '20

Dear Developers, Marc has accounted a developer meeting for tomorrow. It's a short 30 minute meeting where we can get together to talk about the previous 8 days of development and anything that has come up. He's said that he preferences IRC the freenode chat channel #inkscape- devel but the developer channel on https://chat.inkscape.org will also be available and logging the meeting. The meeting time will be 5PM CET (3PM UTC) If you can't make this meeting, you can attend the next one which will be August 24th, same ink place, same ink time! Thanks everyone! Best Regards, Martin Owens

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Error occured while compiling inkscape 1.0 from source
by Prakash Bhattarai 22 Aug '20

22 Aug '20

OS: Ubuntu 18.04 Command: $ mkdir build && cd build $ cmake -DWITH_DBUS=ON .. $ make The following error occurs when linking 'inkview': [ 1%] Built target nrtype_LIB [ 1%] Built target inkscape_dbus [ 2%] Built target util_LIB [ 6%] Built target 2geom_LIB [ 7%] Built target uemf_LIB [ 9%] Built target croco_LIB [ 10%] Built target depixelize_LIB [ 13%] Built target avoid_LIB [ 14%] Built target cola_LIB [ 15%] Built target vpsc_LIB [ 16%] Built target autotrace_LIB [ 16%] Built target gc_LIB [ 18%] Built target livarot_LIB [ 18%] Generating inkscape-version.cpp revision is 4035a4fb49, 2020-05-01 [ 18%] Building CXX object src/CMakeFiles/inkscape_base.dir/inkscape-version.cpp.o [ 18%] Linking CXX shared library ../lib/libinkscape_base.so [ 87%] Built target inkscape_base [ 87%] Linking CXX executable ../bin/inkview ../lib/libinkscape_base.so: undefined reference to `GfxResources::lookupXObjectNF(char*)' ../lib/libinkscape_base.so: undefined reference to `Dict::add(char*, Object&&)' ../lib/libinkscape_base.so: undefined reference to `gmallocn' ../lib/libinkscape_base.so: undefined reference to `GooString::GooString(char const*)' ../lib/libinkscape_base.so: undefined reference to `GfxFunctionShading::getColor(double, double, GfxColor*)' ../lib/libinkscape_base.so: undefined reference to `GfxResources::lookupShading(char*, OutputDev*, GfxState*)' ../lib/libinkscape_base.so: undefined reference to `GfxResources::lookupFont(char*)' ../lib/libinkscape_base.so: undefined reference to `GfxResources::lookupGState(char*)' ../lib/libinkscape_base.so: undefined reference to `copyString' ../lib/libinkscape_base.so: undefined reference to `Parser::getObj(bool, unsigned char*, CryptAlgorithm, int, int , int, int, bool)' ../lib/libinkscape_base.so: undefined reference to `PDFDoc::PDFDoc(GooString*, GooString*, GooString*, void*)' ../lib/libinkscape_base.so: undefined reference to `GfxState::GfxState(double, double, PDFRectangle*, int, bool)' ../lib/libinkscape_base.so: undefined reference to `GfxResources::lookupPattern(char*, OutputDev*, GfxState*)' ../lib/libinkscape_base.so: undefined reference to `gmalloc' ../lib/libinkscape_base.so: undefined reference to `Parser::Parser(XRef*, Lexer*, bool)' ../lib/libinkscape_base.so: undefined reference to `GfxState::transformWidth(double)' ../lib/libinkscape_base.so: undefined reference to `GfxResources::lookupXObject(char*)' ../lib/libinkscape_base.so: undefined reference to `gfree' collect2: error: ld returned 1 exit status src/CMakeFiles/inkview.dir/build.make:117: recipe for target 'bin/inkview' failed make[2]: *** [bin/inkview] Error 1 CMakeFiles/Makefile2:1204: recipe for target 'src/CMakeFiles/inkview.dir/all' failed make[1]: *** [src/CMakeFiles/inkview.dir/all] Error 2 Makefile:162: recipe for target 'all' failed make: *** [all] Error 2 -- *Prakash Bhattarai*

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Re: here's some of my more recent qualifications.
by NASA Jeff 22 Aug '20

22 Aug '20

Here's some of recent university study. I'm still not very good at remembering not to send large images to a mailing list: https://imgur.com/a/zOgQB1f > > <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Re: dynamic undo-redo
by NASA Jeff 21 Aug '20

21 Aug '20

I've included a dropbox link, the attachment was too large for the mailing list.a little mockup svg animation that hopefully makes it a bit clear what my idea for dynamic undo/redo is. https://www.dropbox.com/s/ido5jrhe87bpls8/dynamic%20undo%20redo.svg?dl=0 <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Fri, 21 Aug 2020 at 15:07, NASA Jeff <tallboy258(a)gmail.com> wrote: > I've attached a little mockup svg animation that hopefully makes it a bit > clear what my idea for dynamic undo/redo is. > > > <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. > www.avg.com > <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> > <#m_-2738973539255805922_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Fri, 21 Aug 2020 at 13:39, NASA Jeff <tallboy258(a)gmail.com> wrote: > >> I'll see if I can knock up something quickly in javascript that >> demonstrates what I invasion for dynamic undo-redo. I may write it as >> holywood software that only implements a demonstration instead of being >> fully interactive. >> >> >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. >> www.avg.com >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> >> <#m_-2738973539255805922_m_-4489960304315747695_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> >

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dynamic undo-redo
by NASA Jeff 21 Aug '20

21 Aug '20

I'll see if I can knock up something quickly in javascript that demonstrates what I invasion for dynamic undo-redo. I may write it as holywood software that only implements a demonstration instead of being fully interactive. <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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