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GSoC Mentor Signup
by Bryce Harrington 25 Mar '08

25 Mar '08

Only three people have signed up as mentors for GSoC so far: acspike, ted, and mrdocs. If you're willing to serve as a GSoC mentor for Inkscape, please go to this address and sign up: http://code.google.com/soc/2008/mentor_home.html Bryce

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GSoC Student applications now open
by Bryce Harrington 24 Mar '08

24 Mar '08

Forwarding from google list... LH (Leslie Hawthorn): > Student applications are now available. Please see > http://code.google.com/soc/2008/ > for information on how to submit your application.

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[inkscpae-devel] Applying for GSoc 2008 - 2geom project
by Marco 24 Mar '08

24 Mar '08

Hi, I'm new to the mailing list. I'm interested in contributing in the development and integration of 2geom as a student for GSoC. At present I dived into the most of 2geom codebase. I checked out the library from here: https://lib2geom.svn.sourceforge.net/svnroot/lib2geom/lib2geom/trunk I noticed that the library is already mostly implemented, at a first glance it seems that there are more functionalities there that in libnr. I've always to find out what is the integration level. The idea description about 2geom is enough syntetic, I would like to get some more info and hints so that I'll be able to write down a sensible and detailed proposal/plan for gsoc the next week. In the case it isn't possible to apply for 2geom I could be interested in Live Path Effects too but I've aways to look at the codebase. Follows some rumination on 2geom library. I was wondering if the goal of 2geom is to become an independent library or the developed features have always to be thought with inkscape in mind. I got that path crossings are implemented by a uniform partioning of the interval where the parameter takes its value in small subintervals (2^6 for each path) these generate subpaths whose intersection points are computed as if they were line segment. I'm wondering if it was taken into account that a uniform partitioning of the parameter interval (usually [0,1] for single curve) doesn't mean a uniform partitioning of the path, that is, it could happen that [0, 1/2] is mapped to 9/10 of the path and [1/2, 1] to only 1/10 of the path. To summarize the issue is: making the parameter subintervals 'small enough' doesn't mean to get subpaths enough short that it is possible to manipulate them as they were straight line segments. What's the exact role of s-power basis ? Maybe to have a common form for all the types of curve supported by the svg specification (bezier, elliptical arc, segment) ? Are there specific computational advantages using s-power basis ? I would like to read Sánchez-Reyes's articles (as Applications of the s-Power Basis in Geometry Processing) but I haven't access to them. Follows a brief description of myself and of my previous programming experiences. I'm a student in mathematics (University of Pisa, Italy). I'm interested in computational geometry so I think that applying to gsoc for inkscape could be a good start point. I'm developing an extension of Boost.Function (http://www.boost.org/doc/html/function.html) in order to implement a model of function concept supporting multi-signature and so overloading. You can check out the source code from here: https://svn.boost.org/svn/boost/sandbox/overload/trunk or browsing the documentation: http://docs.google.com/View?docid=dfxvjncs_1x6456m I contributed in the development of a proof of concept svg import filter for Open Office. This import filter has been developed mainly by Fridrich Strba at Novell, my contribute was to add svg text element support to the import filter. If you want gives a glance at the code: http://svn.gnome.org/viewvc/ooo-build?view=revision&revision=9662 Sorry for my poor english. Kind Regards, Marco Cecchetti -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

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Mentors for GSoC '08?
by Maximilian Albert 24 Mar '08

24 Mar '08

Hi all, is it already known who will be the mentors for this year's Summer of Code? I'm not yet 100% decided which project I'd like to apply for (the guidelines project is of particular interest to me but I will need to discuss with Vangelis about it who also expressed interest). So it might turn out to be one that is mainly based on my own ideas and only marginally related to those listed in the wiki (e.g., a collection of further 3D box related features combined with other geometric construction stuff). In this case I would need someone to discuss and refine these ideas so that they can be melted down to a good proposal. Who would be my contact person in this case? Thanks, Max

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Re v 17966 build failure due to calligraphic profiles
by Krzysztof Kosiński 24 Mar '08

24 Mar '08

The recent addition of calligraphic profiles breaks the build due to unresolved references. Did anyone test it before committing? Regards, Krzysztof (Chris) Kosiński -- View this message in context: http://www.nabble.com/Rev-17966-build-failure-due-to-calligraphic-profiles-… Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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System-wide clipboard implementation
by Krzysztof Kosiński 24 Mar '08

24 Mar '08

I think I've finished migrating Inkscape to use the system-wide clipboard instead of an internal per-instance clipboard. The patch is attached to the Launchpad bug report: https://bugs.launchpad.net/inkscape/+bug/170185 Regards, Krzysztof (Chris) Kosiński -- View this message in context: http://www.nabble.com/System-wide-clipboard-implementation-tp16244404p16244… Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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Re v 17995 - build broken again...
by Krzysztof Kosiński 23 Mar '08

23 Mar '08

The Linux build is broken again due to link errors. There are so many of them that I'm not sure I'm able to sort this mess out by myself. Most of the undefined references are to things in libspwidgets. Can anyone help? Regards, Krzysztof (Chris) Kosiński -- View this message in context: http://www.nabble.com/Rev-17995---build-broken-again...-tp16238429p16238429… Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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Re v 17995 gettext failure - patch for LP bug 170185
by Krzysztof Kosiński 23 Mar '08

23 Mar '08

There are 2 files which attempt to translate empty strings, which is wrong (this msgid gives the translation header - see https://bugs.launchpad.net/inkscape/+bug/170185 for details) Index: ../src/display/canvas-axonomgrid.cpp =================================================================== --- ../src/display/canvas-axonomgrid.cpp (revision 17998) +++ ../src/display/canvas-axonomgrid.cpp (working copy) @@ -411,7 +411,7 @@ "empcolor", "empopacity", _wr, repr, doc)); Inkscape::UI::Widget::RegisteredSuffixedInteger *_rsi = Gtk::manage( new Inkscape::UI::Widget::RegisteredSuffixedInteger( - _("_Major grid line every:"), _(""), _("lines"), "empspacing", _wr, repr, doc ) ); + _("_Major grid line every:"), "", _("lines"), "empspacing", _wr, repr, doc ) ); _rsu_ox->setDigits(4); _rsu_ox->setIncrements(0.1, 1.0); Index: ../src/display/canvas-grid.cpp =================================================================== --- ../src/display/canvas-grid.cpp (revision 17998) +++ ../src/display/canvas-grid.cpp (working copy) @@ -675,7 +675,7 @@ _wr, repr, doc)); Inkscape::UI::Widget::RegisteredSuffixedInteger *_rsi = Gtk::manage( new Inkscape::UI::Widget::RegisteredSuffixedInteger( - _("_Major grid line every:"), _(""), _("lines"), "empspacing", _wr, repr, doc) ); + _("_Major grid line every:"), "", _("lines"), "empspacing", _wr, repr, doc) ); table->set_spacings(2); Regards, Krzysztof (Chris) Kosiński -- View this message in context: http://www.nabble.com/Rev-17995-gettext-failure---patch-for-LP-bug-170185-t… Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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SOC 2008 - project - Transformations Anchors
by Vangelis Katsikaros 23 Mar '08

23 Mar '08

Hello After a brief discussion on the list I did a small research for the Transformation Anchors idea. So, I 'd like to ask about the validity of the things I found. * SVG 1.1 has a "transform" attribute which is used for some of the transformations. Inkscape stores the transformation in the file as following: * "move", "scale" doesn't apply a trans matrix but simply moves, scales the coordinates. It also adds a second inkscape:perspective element. This one include a property "persp3d". This is related to the src/persp3d.cpp and the Persp3D class. * "rotate", "skew" applies a transformation matrix with the SVG:transform attribute. * "matrix" depends on the matrix's values. It could lead to one of the above situations. The Transformation UI is implemented in ui/dialogs/transformations.cpp * sp_desktop_selection() is used in order to get the things the user has selected from the "drawing area". (I don't know if you have a specific name for the area on which the inkscape user draws and selects graphics from. I called it "drawing area"). * The functions Transformation::applyPage(Move|Rotate|Scale|...) are responsible for the transformation of the selection. I then tried to figure out how "move" transformation works: updatePageMove() takes the bounding box from the selection. This is a NR::Rect object (NR::Maybe template). NR stands for "new renderer" right? I follow up to here but then I get a bit confused in this line: double x = bbox->min()[NR::X]; NR::Rect::min() returns a member of the NR::Rect class. It returns a Point instance. This class has overloaded the [] operators. With this overloading we return the [i]-th element of a Coord member. And this Coord is an array with 2 elements (for x and y). I think I think I lost the logic of it a bit... Then we take the value which updatePageMove() had set and we apply it with applyPageMove(). This calls sp_selection_move_relative() and then sp_selection_apply_affine(). That's as far as I have seen. So, it boils down to pass sp_selection_apply_affine() an argument about the center of the tranformation and change things in there so that the argument is used correctly? Sorry for the lengthy mail. I just want to make sure that I get how things work in order to estimate the size of the project and the extend of changes in the base code. Regards Vangelis Katsikaros __________________________________________________ ×ñçóéìïðïéåßôå Yahoo!; ÂáñåèÞêáôå ôá åíï÷ëçôéêÜ ìçíýìáôá (spam); Ôï Yahoo! Mail äéáèÝôåé ôçí êáëýôåñç äõíáôÞ ðñïóôáóßá êáôÜ ôùí åíï÷ëçôéêþí ìçíõìÜôùí http://mail.yahoo.gr

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GSoC Idea
by Afief Halumi 23 Mar '08

23 Mar '08

Hello everyone, I would like to submit this idea as my summer of code project and of course any feedback/piece of mind from the inkscape community is greatly appreciated. The Live Path Effect Stack seemed to be *the* thing I always wanted to have in my graphic programs. I have used similar technologies(don't know if this is the right word) before in 3D Studio Max and in Blender, but the way LPES works from what I read is far from what I was hoping for. The main functional fault of LPES is that it is a stack in my opinion. Consider this example from the LPE-bluprint wiki page: http://wiki.inkscape.org/wiki/index.php/Image:Lpe_need_rich_input.png The Live Path Effect would need two objects, the cloud and the sun(let's forget for a minute that each of those is itself an object with an LPE applied,) but how can this be done in a stack environment? The obvious way would be to apply the LPE to one object and add a reference(pointer/id...) to the other object as a parameter. This way would most certainly work, but the second object would remain somewhere outside the object with the LPES applied to it, which will make working with a lot of LPES awkward. How I would like to do it: Instead of using a stack I would like to have an LPE Tree. Each tree node can be either an effect or an object. This way each object can contain a whole hierarchy of editable effects(Similar to Blender and Maya's Node System, but more simple). This would essentially make on-canvas editing of any part of the object(the outline of the cloud, the spike or the circle of the sun) more intuitive as the object itself would contain all the information necessary to build them. This is a (very) simple mockup for the interface as I imagine it(lots of elements taken from 3d studio max) http://img187.imageshack.us/img187/5057/mockuprv7.png Wow, this turned out longer than I thought, thank you for reading through it. Afief Halumi

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