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Re: [Inkscape-devel] [Inkscape-user] Improved performance of the object snapper
by bulia byak 15 Nov '07

15 Nov '07

On 9/5/07, Diederik van Lierop <mail@...1689...> wrote: > The last few days I've spent on improving the performance of the object > snapper. It used to take ages (e.g about 6 seconds on my machine) to > move a simple rectangle over a large text box, but I've managed to > reduce this significantly (i.e. < 1 sec.!). This was with both snapping > to paths and snapping to nodes turned on. For this I had to refactor the > object snapper code significantly, so I might have introduced new bugs > or regressions. Please be aware of this and report any suspicious > behavior, so we can have both fast and robust snapping in v0.46! Thanks, great news! Please add a note about that in the "speed and interactivity" section of the release notes as well. > Please note that the performance has only increased when using the > selector tool for transforming a number of points, e.g. when dragging a > selection. Using the node tool to drag a single node will not benefit > from this. I just tried to test this: opened new document, drew a spiral and a small rect, then opened doc prefs and turned on "snapping of: bbox corners" and "snapping to objects: snap to paths". But when I drag the rect it does not snap to the spiral. What am I doing wrong? > Before, for _every_ point in the selection being transformed (using the > selector tool), Inkscape would search for snapping candidates, build a > list of nodes and paths, and finally call convertWithBackData(). Only > then would it snap this single point and start all over again for the > next point in the selection. Now we only do this collecting and > converting stuff once, store the results, and then snap all points in > the selection (using the stored data). Not having to call > convertWithBackData really helps a lot! I think that in many common > cases this improves the performance dramatically. Yes, this is approximately how I imagined that. The convertWithBackData, as all livarot functions, is very slow. Hopefully we'll be able to use 2geom for that task one day. -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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Compiling on Linux
by Docsonic 15 Nov '07

15 Nov '07

my apologies for cross-posting but I wasn't getting any response in Inkscape-User so I thought I might have posted to the wrong list. I tried to install the latest autopackage of Inkscape but it seems my glibc is too old (Requires GLIBC_2.4 - I have GLIBC_2.3.6 ... is it possible to release a GLIBC_2.3.6 autopackage?) and the package suggested I install from sources. When I try to compile the source, i get an error - ui/dialog/ocaldialogs.h:247: error: expected class-name before '{' token ui/dialog/ocaldialogs.h: In constructor 'Inkscape::UI::Dialog::FileListViewText::FileListViewText(guint, Inkscape::UI::Dialog::SVGPreview&, Gtk::Label&, Gtk::Button&)': ui/dialog/ocaldialogs.h:250: error: class 'Inkscape::UI::Dialog::FileListViewText' does not have any field named 'ListViewText' I use Debian Etch (stable) so it seems compiling myself is my best option but I have tried with about 5 different source packages and the result is always the same (the package which created this error was 16060 but it is still there in 16148). Thanks, Tony -- View this message in context: http://www.nabble.com/Compiling-on-Linux-tf4534516.html#a12940589 Sent from the Inkscape - Dev mailing list archive at Nabble.com.

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Failing compile with 2geom/path.h
by Mason Thomas 14 Nov '07

14 Nov '07

Hi, I have recently been unable to compile Inkscape on Linux because of a compile failure in nodepath.cpp. It exhibits the same failure, even when I checkout an older version that used to compile for me! Here is the beginning of the message I get (it goes on much longer), could someone please help? Thanks, -Mason In file included from live_effects/effect.h:16, from live_effects/lpeobject.h:13, from nodepath.cpp:50: ./2geom/path.h:72: warning: `virtual Geom::Curve* Geom::Curve::reverse() const' was hidden ./2geom/path.h:313: warning: by `Geom::Curve* Geom::SVGEllipticalArc::reverse(double, double) const' ./2geom/path.h: In member function `Geom::BaseIterator<__gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > > > Geom::Path::begin()': ./2geom/path.h:376: error: `Geom::BaseIterator<IteratorImpl>::BaseIterator(const IteratorImpl&) [with IteratorImpl = __gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > >]' is private ./2geom/path.h:472: error: within this context ./2geom/path.h: In member function `Geom::BaseIterator<__gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > > > Geom::Path::end()': ./2geom/path.h:376: error: `Geom::BaseIterator<IteratorImpl>::BaseIterator(const IteratorImpl&) [with IteratorImpl = __gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > >]' is private ./2geom/path.h:473: error: within this context

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Using multi-path objects with the "Pattern along path" or "path along path" effects
by Tony Vigil 14 Nov '07

14 Nov '07

Currently, only a single path can be placed along the path in a single instance of the effect. Will either effect ever be able to place an object (with multiple paths) along a path? Perhaps even turned into a stroke style??? The reason I ask is that it would be very nice to be able to create brushes (objects with multiple paths) that could be placed along a path. Here is an example of what I am talking about... http://soundnvision.homestead.com/files/brush_along_path.png The steps required to make the various shades of my example brush follow a single path is very time consuming. After I trace the bitmap, I need to include a bounding rectangle with each object that makes up the different shades of the brush so that each element is placed relative to all other elements along the same path. Then, each element is placed along the path separately. You can't edit the original path and have ALL of the elements respond accordingly. Therefore, you must start the process all over again if you don't have the original path placed exactly as as you need based on your brush shape. Best case scenario... this effect becomes a stroke style that can be applied to any object (i.e. rectangles, ellipses, text, spirals, etc.), not just path objects. The only other place I've ever seen this type of tool is in Microsoft Expression. Inkscape's path effect comes close, but doesn't quite hit the mark. - Tony

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student project : distortion envelope tool
by Steren Giannini 13 Nov '07

13 Nov '07

Hello, It is now official for the administration of our school, we are starting working on the "distortion envelope tool" at the end of december. Our official "tutor" from the dev team is Johan Engelen. The school is only interested in observing how we manage to organize our project alone and if we meet the requirements. I'll be the project leader, we are 6 in the team and we will be working for 5 months. (from 4 to 8 hours a week) We are before all inkscape users and we are very exited to build something for it. The goals are : - create the distortion tool engine for paths (using lib2geom, and path effects) - create the tool's UI - extend path effects to groups for the distortion tool and others (path along path for example) Of course : - SVG compliant - The original object is saved. If the project goes well, the goals could be extended. We'll see with Johan. (nb : Yesterday, I was thinking about path effect on clones, path effect on texts...) Bye, Steren

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Re: [Inkscape-devel] [Inkscape-user] Automatically set Z-order
by bulia byak 13 Nov '07

13 Nov '07

On Nov 13, 2007 2:21 AM, Ted Gould <ted@...11...> wrote: > On Mon, 2007-11-12 at 17:43 -0400, bulia byak wrote: > > I dunno about Gimp, but Inkscape extensions are pretty easy. This one > > however is a bit cumbersome because Inkscape does not pass to the > > extensions the bboxes of the selected objects. (I proposed to add this > > to the extensions API; Ted, is there any reason why you don't want to > > do this?) > There is no reason that it hasn't been done other than time. I guess > that, and deciding a format for it, but I think we've discussed that too > (I'd have to go through my mail). This should be a pretty easy task for > someone who wants to do it. There is already a loop going through all > of the selected items, you'd just need to find the bounding boxes and > add that to the parameter list. Will it require any changes in the existing extensions? I think it should be done before 0.46 then, because it will make a lot of different extensions easier, and the API changes should be done as early as possible. -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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dirty on load
by bulia byak 13 Nov '07

13 Nov '07

This is one of the most annoying and visible recent bugs - right after clean start, the empty document is dirtied and it asks if I want to save it upon quitting. The undo stack is empty however. Can anyone please look into it? I think it's pretty recent. -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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Check out my Favorites on StumbleUpon
by unknown＠example.com 12 Nov '07

12 Nov '07

StumbleUpon Discover new web sites Rfq wants to Share his Favorites with you He likes58 pages Join StumbleUpon and discover your friends' Favorites. Suddenly the Web is fun again :) -&rfq & rfquerin@...400... Discover my Favorites & http://www.stumbleupon.com/redirect.php?t=j&u=1740514&d=http%3A%2F%2Fwww.st… About StumbleUpon StumbleUpon allows you to channel surf the internet and discover great websites and web content you might never have found. Whether it's a website, video, picture, game, blog, or wiki, StumbleUpon helps you find interesting stuff recommended by like-minded people with just a single click of the Stumble! button. Learn More http://www.stumbleupon.com/redirect.php?t=j&u=1740514&l=3&c=3euwc5suod2mxfhq If you do not wish to receive future e-mail invitations to join StumbleUpon, please click here http://www.stumbleupon.com/redirect.php?t=j&u=1740514&d=http%3A%2F%2Fwww.st… . (c) StumbleUpon 2001-2007

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tweak tool screenshots
by bulia byak 10 Nov '07

10 Nov '07

http://inkscape.org/screenshots/gallery/inkscape-0.46-tweak-path.png http://inkscape.org/screenshots/gallery/inkscape-0.46-tweak-color.png enjoy -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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Inkscape profiling: Inkscape::FontLister::FontLister question
by John Bintz 10 Nov '07

10 Nov '07

Hi, all. I'm experimenting with profiling Inkscape in Valgrind looking for potential slow spots in the code, and had a question for those with more knowledge of the font loading code. One of the first places in the initialization code where I think there could be a speedup is in Inkscape::FontLister::FontLister. This method calls font_factory::Styles once for each font family that is returned by font_factory::Families. In my test run of opening and closing Inkscape with 142 font families returned by font_factory::Families, running Inkscape::FontLister::FontLister took just over 20% of the total runtime. If there were some way to cache this font information between runs of Inkscape and only update it if the fonts on the system have changed, or if there was a way to push back the loading of fonts to later in the program execution -- say the first time someone viewed the Text toolbar or something similar -- I think it might speed up startup time in Inkscape. Anyone willing to help me take a look into this to see if this will work? Thanks, John

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