April 2008 - Inkscape Devel - Inkscape Mailman

Re: [Inkscape-devel] [Inkscape-user] SVG Open conference, looking for a Inkscape presentation and course
by Andy Fitzsimon 16 Apr '08

16 Apr '08

G'day andreas, You might want to talk to the many competent Inkscape user who work for Novell there in Nuremberg. Most Inkscape developers live outside of Europe. - Andy On Wed, Apr 16, 2008 at 12:14 AM, Andreas Neumann <a.neumann@...1944...> wrote: > Hello Inkscapers, > > We are very interested to have Inkscape at the conference. However, we > don't have a big budget for reimbursing traveling/hotel costs for many > people. I am pretty sure there would be interesting discussions at the > conference, since most of the people of the W3C SVG working group will > be present at the conference. W3C will also open up the process for > working on future SVG versions, which means that all interested > persons/projects can participate no matter if they are paying W3C > members or not. By opening up this process we hope to get projects like > Inkscape or others more involved in the process. > > We can offer free conference passes for the keynote speaker and course > instructors and maybe I can come up with some funding for one or two > persons for covering at least parts of the traveling/hotel costs. > > Having a booth at the technical exhibition would be free for open source > projects. I can also help out for the Inkscape booth for parts of the > exhibition - however, not for the whole time. I am also an Inkscape user. > > The deadline for abstracts is very close, but we can make a few > exceptions if you are still working on proposals. Tell me how many extra > days you need for working on abstracts/course proposals. > > I am looking forward to contributions from the Inkscape community and to > fruitful discussions at the conference. > > Thanks, > Andreas > > > > Jon A. Cruz wrote: > > Hey guys, > > > > Is there anyone slightly local who might be up to making SVG Open and > > giving a talk or teaching a class? I'm going to see what I can do, > > but the more people we have getting involved the better. And as we > > saw at SCALE, with different people submitting proposals on different > > subjects, there's a better chance of at least something matching the > > need and being accepted. > > > > Additionally, is there anyone who might be able to make it to man a > > booth? From things like SCALE and LugRadio Live I've seen how just > > having *anyone* there can be helpful. In fact, some times the booths > > manned by people who might not be core developers but who are users > > and just excited about the project can be some of the best. > > > > Thanks, and I hope we get a few more people stepping up, despite the > > deadline being so close. :-) > > > > > > On Apr 11, 2008, at 2:22 AM, Andreas Neumann wrote: > > > >> Hello Inkscape Developers and Users, > >> > >> The SVG Open 2008 will take place in Nuremberg, Germany, from > >> August 26 > >> to 29. > >> > >> We would appreciate if we could have one or more presentations and a > >> course on Inkscape. We could also have a Inkscape presentation as a > >> keynote at the conference. See > >> http://www.svgopen.org/2008/index.php? > >> section=participate_presenters for > >> more information. > >> > >> We are also still looking for course instructors: courses will be 150 > >> minutes in length, course instructors will receive a free conference > >> pass. See > >> http://www.svgopen.org/2008/index.php?section=participate_workshops > >> for > >> more information. > >> > >> Please contact me if you have questions and submit your paper > >> abstracts > >> and course proposals at http://www.svgopen.org/ > >> > >> Official Call for Papers: > >> ------------------------- > >> > >> Call for Papers, SVG Open 2008 > >> http://www.svgopen.org/ > >> > >> The 6th international conference on Scalable Vector Graphics will take > >> place from August 26 to 28 in Nuremberg, Southern Germany. At this > >> conference you can learn about subjects varying from specialized > >> technical visualizations to interactive multimedia art. On the program > >> there are presentations, beginner and advanced level workshops, a > >> technical exhibition, and the opportunity to meet people from the SVG > >> community, industry and the W3C SVG Working Group. > >> > >> The SVG Open 2008 organizing committee is looking for contributors > >> presenting a paper or teaching a course. Presenters are asked to > >> submit > >> an extended abstract in English with an approximate length of 400 > >> to 800 > >> words by April 18, 2008. The abstracts are reviewed by a reviewing > >> committee and presenters will be informed about acceptance on or > >> before > >> May 15, 2008. If your abstract is accepted, you will be asked to > >> submit > >> your full paper by August 1, 2008, according to instructions that will > >> be sent to you. Accepted abstracts, papers and presentations will be > >> published on the conference hand-outs and web proceedings. Paper > >> Abstracts can be submitted at http://www.svgopen.org/ until April 18. > >> Following is a list of potential presentation topics: > >> > >> * Mobile (handheld, in-car) Solutions > >> * SVG Authoring Tools > >> * Publishing and Printing with SVG > >> * SVG Text and Internationalization > >> * Accessibility of SVG > >> * Location-based Services > >> * Business Cases and Case Studies > >> * Workflow for Creating and Using SVG > >> * SVG and Digital Television > >> * Graphic Design with SVG > >> * SVG for Webmapping and Online GIS/GML > >> * SVG for Multimedia Presentations > >> * Server-side SVG Generators and Manipulators > >> * SVG Authoring Techniques > >> * Making Graphics Acessible > >> * Interactivity and Scripting > >> * GUI Frameworks for Web Applications > >> * File Format Conversion > >> * Case Studies > >> > >> Course Instructors are asked to submit a course outline by April 18, > >> 2008. The outlines are reviewed by a reviewing committee and > >> instructors > >> will be informed about acceptance on or before April 29, 2008. > >> Accepted > >> course instructors will receive a free conference pass and may > >> participate at the come together event for free. Accepted course > >> outlines will be published as course descriptions in the program. > >> Therefore they should be directed at those who might register for the > >> course rather than the reviewers. Courses are 150 minutes in length, > >> scheduled for the morning and afternoon of August 29, 2008. We are > >> interested in proposals for both beginner courses and advanced > >> courses, > >> to cater to the diverse interests of all conference attendees. Here > >> is a > >> list of topics of potential interest for courses. Feel free to either > >> volunteer for one of these or propose your own topic. > >> > >> * Introduction to SVG > >> * SVG Authoring Techniques > >> * Creating Mobile SVG content > >> * UI Design > >> * Using SVG Tools > >> * CSS > >> * XSLT > >> * SMIL Animation > >> * ECMAScript and the DOM > >> * Graphic Design > >> * SVG Filter Effects > >> * Rendering Algorithms > >> * Generating SVG from Database Content > >> > >> Thank you for considering a paper or course abstract submission. > >> Hope to > >> see many of you in Nuremberg! > >> > >> The SVG Open 2008 organizing committee. > >> > >> ------------ > >> > >> Thanks, > >> Andreas > >> > >> -- > >> > >> -- > >> Andreas Neumann > >> Böschacherstrasse 6 > >> CH-8624 Grüt (Gossau ZH) > >> Switzerland > >> Phone: ++41-44-2736668 > >> Email: a.neumann@...1944... > >> > >> Web: http://www.carto.net/neumann/ > >> SVG Examples: http://www.carto.net/papers/svg/samples/ > >> SVG.Open: http://www.svgopen.org/ > >> > >> ---------------------------------------------------------------------- > >> --- > >> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > >> Don't miss this year's exciting event. There's still time to save > >> $100. > >> Use priority code J8TL2D2. > >> http://ad.doubleclick.net/clk;198757673;13503038;p?http:// > >> java.sun.com/javaone > >> _______________________________________________ > >> Inkscape-user mailing list > >> Inkscape-user(a)lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/inkscape-user > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > > Don't miss this year's exciting event. There's still time to save $100. > > Use priority code J8TL2D2. > > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/java… > > _______________________________________________ > > Inkscape-user mailing list > > Inkscape-user(a)lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/inkscape-user > > -- > > -- > Andreas Neumann > Böschacherstrasse 6 > CH-8624 Grüt (Gossau ZH) > Switzerland > Phone: ++41-44-2736668 > Email: a.neumann@...1944... > > Web: http://www.carto.net/neumann/ > SVG Examples: http://www.carto.net/papers/svg/samples/ > SVG.Open: http://www.svgopen.org/ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save $100. > Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/java… > _______________________________________________ > Inkscape-user mailing list > Inkscape-user(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/inkscape-user >

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Proposal for new 'Edit | Paste Path' option
by Alvin Penner 15 Apr '08

15 Apr '08

Recently the Copy and Paste procedures have been improved radically https://bugs.launchpad.net/inkscape/+bug/170185 , so that the system clipboard is now used. This is a major advancement in communication with non-Inkscape apps, the possibilities are endless ... So I would like to make a proposal for a new kind of Paste procedure to see if there is any interest. This would be a paste option to transfer wireframe data into Inkscape to edit existing wireframe information, while keeping the Fill and Stroke information intact. It could perhaps be called 'Edit | Paste Path'. The properties would be : 1. paste using absolute coordinates, not relative to mouse. 2. transfer only 'path' node info, and within the path node transfer only the 'd' attribute, and the 'transform' attribute, not the 'style' attribute. 3. if the path id already exists, then overwrite it, but only 'd' and 'transform', not 'style'. This paste option would be distinct from 'Paste in Place' because it allows for editing of existing data, and it would be essentially complementary to 'Paste Style', which transfers the 'style' attribute, but not the 'd' or 'transform' attributes. It would be very similar, but more general, than the 'Paste Size | Paste Width/Height' options because it would transfer the entire wireframe path. This option would be essentially identical in scope to the proposal in https://bugs.launchpad.net/inkscape/+bug/179560 , except that this would be much more user-friendly than what was proposed there. As you may have guessed, I have an ulterior motive, which is my project BezierDraw : http://www.vaxxine.com/apenner/ . I want to copy and paste wireframe data from BezierDraw into Inkscape, then edit the Fill and Stroke properties in Inkscape, and then further modify the wireframe data by editing it in BezierDraw and pasting it once again into Inkscape ... Hence my motivation, any interest in this ? Alvin Penner -- View this message in context: http://www.nabble.com/Proposal-for-new-%27Edit-%7C-Paste-Path%27-option-tp1… Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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Re: [Inkscape-devel] [cairo] Fwd: cairo path rendering bug with inkscape
by Carl Worth 14 Apr '08

14 Apr '08

On Sat, 05 Apr 2008 06:26:30 -0700, Carl Worth wrote: > So Bulia, I'm throwing the ball back into your court. It appears > there's a bug in inkscape that is converting some C path elements into > cairo_move_to instead of cairo_curve_to. > > I haven't tried chasing this down into inkscape yet. It was easy enough to see where inkscape is using cairo_move_to instead of cairo_curve_to: In inkscape-cairo.cpp:112: if (!optimize_stroke || swept.intersects(view)) cairo_curve_to (ct, tm1[NR::X], tm1[NR::Y], tm2[NR::X], tm2[NR::Y], tm3[NR::X], tm3[NR::Y]); else cairo_move_to(ct, tm3[NR::X], tm3[NR::Y]); And sure enough, eliminating that optimization, (as with the below patch), does make the bug go away. But that's just a band-aid really, and doesn't tell us what's wrong with the optimization, (since it should be a reasonable thing to discard curves that are not visible). I'll look a little closer now. -Carl PS. I guess since we're in inkscape's code now, I'll move the discussion to the inkscape-devel list. Followups need not include the cairo list anymore. >From ea87c392609cf6ad931bf64b0be35ac6a7233977 Mon Sep 17 00:00:00 2001 From: Carl Worth <cworth@...573...> Date: Sat, 5 Apr 2008 06:48:45 -0700 Subject: [PATCH] Bandaid to avoid incorrect curve optimization I'm not sure what's wrong with the optimization here, but removing it definitely clears up bugs. Look at this file with the cairo-based outline mode both with and without the optimization to see: http://cairographics.org/~cworth/images/cairobug.svg (You may need to zoom in a bit to see the bug appear.) --- src/display/inkscape-cairo.cpp | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-) diff --git a/src/display/inkscape-cairo.cpp b/src/display/inkscape-cairo.cpp index 5d87d39..a32cd13 100644 --- a/src/display/inkscape-cairo.cpp +++ b/src/display/inkscape-cairo.cpp @@ -109,10 +109,7 @@ feed_curve_to_cairo (cairo_t *ct, NArtBpath *bpath, NR::Matrix trans, NR::Maybe< tm1 -= shift; tm2 -= shift; tm3 -= shift; - if (!optimize_stroke || swept.intersects(view)) - cairo_curve_to (ct, tm1[NR::X], tm1[NR::Y], tm2[NR::X], tm2[NR::Y], tm3[NR::X], tm3[NR::Y]); - else - cairo_move_to(ct, tm3[NR::X], tm3[NR::Y]); + cairo_curve_to (ct, tm1[NR::X], tm1[NR::Y], tm2[NR::X], tm2[NR::Y], tm3[NR::X], tm3[NR::Y]); break; } -- 1.5.5.rc0.24.g86c30

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i18n: GTK Input Methods
by Marcin Floryan 14 Apr '08

14 Apr '08

Hi! Recently looking into: https://bugs.launchpad.net/inkscape/+bug/215574 I started looking into how it is handled in Windows and was wandering if some of you have more experience in the area or could provide some pointers. Regards, -- Marcin Floryan http://marcin.floryan.pl/ [GPG Key ID: 0D5581C5]

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compile broken rev 18323
by bulia byak 14 Apr '08

14 Apr '08

1 please don't forget to update Makefile_insert files - I did this for the moved n-art-bpath-2geom.cpp/h 2 even then, linking fails: libnr/libnr.a(n-art-bpath-2geom.o): In function `SVGEllipticalArc':./2geom/path.h:287: undefined reference to `vtable for Geom::SVGEllipticalArc' libnr/libnr.a(n-art-bpath-2geom.o): In function `Geom::SVGPathGenerator<std::back_insert_iterator<std::vector<Geom::Path, std::allocator<Geom::Path> > > >::arcTo(double, double, double, bool, bool, Geom::Point)':./2geom/path.h:297: undefined reference to `Geom::SVGEllipticalArc::calculate_center_and_extreme_angles()' collect2: ld returned 1 exit status please fix asap -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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Inkscape GSoC: Ranking Proposals
by Aaron Spike 14 Apr '08

14 Apr '08

Mentors, now is the time to log in to the GSoC web interface and read and rank proposals. We have until April 18 to complete this work. If as you are reading proposals you think "so-and-so would be a great mentor for this proposal" and so-and-so isn't signed up as a mentor, please contact and encourage them (or suggest them to me and I will make contact). Fellow developers, if you haven't yet signed up as a mentor but are willing and able, please do so now. Aaron Spike

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Architectural question about libgc
by Krzysztof Kosiński 13 Apr '08

13 Apr '08

The main usage pattern for garbage-collected classes I see is: Inkscape::XML::Node *foo = doc->createElement("foo"); parent->appendChild(foo); Inkscape::GC::release(foo); This looks very malloc-free-ish. Why not, instead of deriving from the GC-managed classes, derive from Glib::ObjectBase and then use Glib::RefPtr everywhere? During the migration period, SPObjects etc. can be derived from both Inkscape::GC::Managed etc. and Glib::ObjectBase, and overload the reference() and unreference() virtual methods to call Inkscape::GC::anchor() and Inkscape::GC::release(). However, I don't know the codebase too well, so probably there's some more fundamental reason to using libgc other than managing objects which have multiple references - please enlighten me :). Regards, Krzysztof Kosiński -- View this message in context: http://www.nabble.com/Architectural-question-about-libgc-tp16620985p1662098… Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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Re: [Inkscape-devel] Proposal for new 'Edit | Paste Path' option
by Alvin Penner 13 Apr '08

13 Apr '08

perhaps I should clarify, in the path node you can have a 'd' attribute either with or without a 'transform' attribute. - if the 'transform' attribute does not exist, then it does not need to be transferred as part of a paste - if the 'transform' attribute does exist, then it should be transferred as part of a paste

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Re: [Inkscape-devel] Proposal for new 'Edit | Paste Path' option
by Alvin Penner 13 Apr '08

13 Apr '08

At 02:00 PM 4/13/2008 -0400, you wrote: >On Sun, Apr 13, 2008 at 12:50 PM, Alvin Penner <penner@...1856...> wrote: >> 1. paste using absolute coordinates, not relative to mouse. >> 2. transfer only 'path' node info, and within the path node transfer only >> the 'd' attribute, and the 'transform' attribute, not the 'style' attribute. > >No, for a typical user there's no separate "transform". Any command >that treats path data separately from transform will give >unexplainably weird results for such a user. It's a very specialized >functionality. actually, I was proposing that both the 'd' attribute and the 'transform' attribute be modified at the same time, not separately. The reason for this is that most users cannot visually distinguish between them, so if you are going to modify one, then you should modify both. The only way to distinguish between them is to open the XML editor which most people won't do. > >> 3. if the path id already exists, then overwrite it, but only 'd' and >> 'transform', not 'style'. > >That is very specialized too. Users don't care and don't know about >ids. For them, this command will just act weird and unpredictable. in this case I was referring to the 'd' attribute to be overwritten, not the 'id' attribute, which is quite different. > >So, I don't think it's a good idea overall. However, there's another >command that needs to be implemented and that will give you, more or >less, the functionality you need. It's copy/pasting nodes: in Node >tool, pressing ctrl+c with some nodes selected, these nodes must be >copied to some special storage; and when you press ctrl+v with some >nodes selected, these nodes must be replaced with pasted nodes, >correspondingly moved and probably rotated to fit the path in the new >place. If you're replacing all nodes of an object, no such >move/rotation is necessary. Then, pasting path data from another >application would be done like this: select target object, switch to >node tool, select all nodes and press ctrl+v. > >-- >bulia byak >Inkscape. Draw Freely. >http://www.inkscape.org > >

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Support the Libre Graphics Meeting - Inkscape website
by Louis Desjardins 13 Apr '08

13 Apr '08

Hello Inkscapers! As you probably already know — but in case you don’t! — we have a fundraising campaign going on to help Libre Graphics Meeting 2008 help developers get to the conference. We have already gathered over $7000 USD thanks to an overwhelming response from the community and, yes, 179 generous donators so far! WOW! http://pledgie.com/campaigns/613 But we need lots more... and we’re now trying to get some more noise around this campaign. We would appreciate that the campaign be posted on the Inkscape website. If anyone can do that quick, it would be great. Please include the Pledgie logo! Also, more on Dave Neary’s post on the Create list for all the details. Cheers! Louis For the organisation of LGM 2008 - Wroclaw

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