January 2010 - Inkscape Devel

Re: [Inkscape-devel] "Print colors"?
by Felipe Sanches 10 Jan '10

10 Jan '10

A friend wrote a message to this list in portuguese and asked me to translate it to english for him. Here it is: On Thu, Jan 7, 2010 at 9:32 PM, Valessio Brito <contato@...2138...>wrote: > Isto é uma boa ideia para separação de cores ou no processo de > visualização. A opção "Imprimir Cores" é legal porque se você utiliza > CMYK e cores especiais, pode visualizar quantas camadas de cores tem > seu trabalho. > > This [the print colors preview mode] is a great idea for color separation or also in the process of previewing your artwork. This is cool because it enables you to know how many color channels your artwork has (be it CMYK or spot colors). > > Acho que isso que você fez é > um grande passo para separação de cores e é bastante utilizado em > processo Silk, se colocar isso no dialogo de impressão é um sucesso. > > I think that what you [Felipe] have done is a great step towards color separations and is very frquently used in silk processes. If you add it to the print dialog it will be a success! Valessio Brito

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Re: [Inkscape-devel] [Lib2geom-devel] How to sync 2Geom?
by unknown＠example.com 10 Jan '10

10 Jan '10

> -----Original Message----- > From: Krzysztof Kosiński [mailto:tweenk.pl@...400...] > Sent: vrijdag 8 januari 2010 4:02 > To: Engelen, J.B.C. (Johan) > Subject: Re: [Lib2geom-devel] [Inkscape-devel] How to sync 2Geom? > > W dniu 31 grudnia 2009 15:36 użytkownik > <J.B.C.Engelen@...1578...> napisał: > > Yeah I agree. It's best not to update Inkscape's 2geom > copy, unless you are sure some bug got fixed or you need a > newer 2geom. > > Also, note that Inkscape's copy does not (and shouldn't) > contain all 2geom's files. > > OK, but how it is done? :) Do you use some script or copy the > files manually? I use JFileSync: http://jfilesync.sourceforge.net/

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Inkscape keeps crashing
by Alexandre Prokoudine 10 Jan '10

10 Jan '10

On revision 8938: Program received signal SIGSEGV, Segmentation fault. 0x000000000047c747 in persp3d_VP_is_finite (persp_impl=0x0, axis=Proj::X) at persp3d.cpp:331 331 persp3d_VP_is_finite (Persp3DImpl *persp_impl, Proj::Axis axis) { (gdb) bt #0 0x000000000047c747 in persp3d_VP_is_finite (persp_impl=0x0, axis=Proj::X) at persp3d.cpp:331 #1 0x00000000007191ba in box3d_toolbox_prep (desktop=0x1997c00, mainActions=<value optimized out>, holder=0x2905b40) at widgets/toolbox.cpp:3464 #2 0x000000000070d2ff in setup_aux_toolbox (toolbox=<value optimized out>, desktop=0x1997c00) at widgets/toolbox.cpp:1745 #3 0x00000000006fe485 in toolbox_set_desktop (toolbox=0x1144e70, desktop=0x1997c00, setup_func=0x70d070 <setup_aux_toolbox>, update_func=0x6fe750 <update_aux_toolbox>, conn=0x28fde80) at widgets/toolbox.cpp:1635 #4 0x00000000006d96a1 in sp_desktop_widget_new (namedview=0x1f78030) at widgets/desktop-widget.cpp:1378 #5 0x00000000004627b4 in sp_file_new (templ=<value optimized out>) at file.cpp:129 #6 0x0000000000462aee in sp_file_new_default () at file.cpp:177 #7 0x0000000000453ef7 in sp_main_gui (argc=1, argv=0x7fffffffe3f8) at main.cpp:949 #8 0x0000000000453419 in main (argc=1, argv=<value optimized out>) at main.cpp:689 Maximilian? :) Alexandre

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"Print colors"?
by bulia byak 08 Jan '10

08 Jan '10

I just noticed this new view mode and dialog. Guys, if you do anything remotely as newsworthy as this, PLEASE describe it in Release notes AND post to devel list to discuss. That said, I'm really not sure it's a good idea to make this a view mode, next to Outline and No filters. The modes are there primarily for speed, but this one has entirely different goals. I've never seen this implemented like that in other programs and I think it's for a reason. If you're interested in print preview, just set it up once, in a dialog/tab of its own. For those 95% users who don't need it, it will just make view modes much harder to figure out. As for the dialog, apart from the fact that it shouldn't be called from view modes submenu, it really looks strange with its 4 buttons and nothing else. Is it supposed to be that way? Can we make it more useful? -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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Fit page to selection margin options
by Nicolas Dufour 08 Jan '10

08 Jan '10

Hi, Alex Leone has attached a patch which add margin options for the "Fit page to selection" button in the document properties. I've tested it successfully on Ubuntu 9.10, but it would be nice if a C++/UI expert review the code before we commit it (see https://bugs.edge.launchpad.net/inkscape/+bug/499942). Regards, -- Nicolas

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New version of Alchemy is out w/ SVG support
by Joshua A. Andler 08 Jan '10

08 Jan '10

SVG support was added to svn a little while ago, but now it's in a release. You can set your preferred vector format to SVG now instead of PDF. I personally find it compliments Inkscape nicely. http://al.chemy.org/news/alchemy-008-beta-release/ Cheers, Josh

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Devlibs SVN
by Krzysztof Kosiński 08 Jan '10

08 Jan '10

Hello 1. Where is Windows devlibs SVN hosted? 2. Why it contains .pyc files? 3. Why is glibmm version lower than GLib version (2.14 and 2.16 respectively)? 4. How can I get commit access? 5. Where is libxslt.pc? PS: I just installed WinXP in VirtualBox, and it works very well. I'll post a walkthrough on a wiki. This should enable more people to help with Windows problems. Regards, Krzysztof

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Spray tool: code
by Krzysztof Kosiński 07 Jan '10

07 Jan '10

Hello Here are some remarks about the spray tool that are not related to its UI. Major issues: 1. The tool is very slow in single path mode - it updates XML after adding each object. XML should be updated only when the mouse is released, like in the node tool. 2. Single path mode uses sp_selected_path_union, which spams the undo stack with union operations and destroys selection. Ideally, 2Geom or livarot functions should be used directly, and if that's not possible, sp_selected_path_union_skip_undo. 3. Undo doesn't work correctly for single path mode - Ctrl+Z undoes only one sprayed copy. Less important issues: 4. Clones are created by creating XML nodes directly. Shouldn't the SP layer be used instead? 5. Cryptic pref names like "doo", "doh". 6. sp_spray_recursive has lots of parameters. 7. spray-context.cpp:554 is a crucial formula that is unreadable and undocumented. 8. Indentation in sp_spray_context_root_handler is, mildly put, unorthodox. 9. get_dilate_radius, get_path_force, get_path_mean, etc. - I don't like this. 10. random_position - data passed by non-const reference to a function that doesn't modify it. Regards, Krzysztof

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Re: [Inkscape-devel] [Inkscape-user] Future plans for speeding up Inkscape?
by Joshua L. Blocher 06 Jan '10

06 Jan '10

> My conclusion is that 3D hardware can indeed greatly improve 2D > rendering performance. I'd really like to see these great speed > improvements pushed into a project like inkscape someday, but I am > generally not an open source developer (I'm happily stuck in the world > of Delphi programming). > Your more then welcome to become an Inkscape contributor. We have a pretty low bar for coders two accepted patches get you BZR commit rights. They don't have to be world changing patches either mine weren't. If that is not what you are interested in or have the time for that is fine. My knowledge of this area is limited so any other Developer feel free to speak up. > My recommendations would be the following: > > 1. Look into the simple optimization of using shader programs to > generate inkscapes polygon fills, especially when they involve any > kind of gradients. I have written all the cross platform glsl shaders > to handle any conceivable fill type including linear, radial, and cone > with reflect, repeat, and clamp end options. I can donate that code as > a starting point if anyone would like to take a look at it. Sure that is a good start. Small fits and start is how we finally got a OSX port and how the OSX Aqua port is currently going. People working out a little bit at a time until in all worked. > > 2. Get the cario guys interested in rolling hardware support into the > cairo api. I've talked with them about a hardware openvg backend > before. Maybe someone well respected from the inkscape can motivate > them to get moving in that direction. > We would need to finish the move to Cairo as our render, for this to be effective. That is planned but no one is active working on the renderer right now. > 3. Take a look into openvg. I believe Trolltech has done some work on > implementing that api in Qt. I used the Amanith openvg render and it > works okay in opengl mode. That's another thing to look into. Unlikely that we will start using the QT toolkit, but it is a great toolkit. > > 4. And finally, someone might want to check out the evil Microsoft > Direct2D api. I know it's locked into Windows, but it sure should take > care of everything you'd ever need, and be blazing fast too boot. > This is even less likely IMO than a move to QT, as it is not cross platform, currently maintaining the windows port is hard enough as we have only a handful of active windows developers. Joshua L. Blocher verbalshadow

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Re: [Inkscape-devel] [Inkscape-user] Future plans for speeding up Inkscape?
by Joshua L. Blocher 06 Jan '10

06 Jan '10

> I think the most bang for the buck and most general would come > from using 3D HW accel and moving to the extra memory provided > by 64-bit. I know that running out of memory is where Adobe > Illus. quickly fails on larger vector drawings, especially in > the undo/redo system. Honestly, It is hard to find people who are Interested and have the skills and time to implement it. We are just waiting for the stars to align and the right contributor(s) to show up. > > It's amazing what Inkscape can do and how easy it is to do thing > when it comes to vector stuff, but my version (.47) doesn't seem > real stable after I've been running it for a while. All of my > long edit sessions in _playing_ with advanced features have > ended by it crashing. > > I wasn't trying to do anything in particular so I don't > remember the workflow I did each time, but it was usually after > it had been up a while. Only once did I actually get to a point > of saving an output w/o it crashing. I'm a complete novice when > it comes to computer art/SVG art, so I'd sure I was doing something > that was 'unreasonable'... :-) 'unreasonable' behavior is the kind that finds bugs the fastest, and provides us with new use cases. Please report your bugs . http://www.inkscape.org/report_bugs.php?lang=en > > I didn't try to report the bug at the time as I'm sure the > developers have their plate full with other problems and since I'm > not real familiar with correct operation, I didn't want to be told > that I wasn't using the product 'the right way' and by being a > beginner, the crashes were due to me trying to do things that I > should have done differently (though I tend to believe programs > shouldn't crash in such situations, but there could be workarounds > that would be known if I was more adept with the program). I recommend enabling the auto-save feature in Preference it has saved me a few times. > > I can try to report bugs if I'm not made to feel worthless for > reporting them if I don't also include fixes for them...like I > have got on some projects...(oh the joys of open source projects We want and need all the feedback you can give us for Inkscape. If you have issue with any inkscape contributor making you feel worthless for trying to be helpful please let us know, here or on the Devel ML. Appropriate action will be taken. Joshua L. Blocher verbalshadow

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