Hi Mike, I suggest checking the results of "geom" and "coords" before using them. If they are nullptr it will crash your program.
- Werner - Am 09.08.2018 um 12:39 schrieb michael kapelko: > Here's how I change texture coordinates: > https://github.com/OGStudio/ogs-mahjong-components/blob/0308cd2ed97b001cf5aecea1b5aada839707c5cf/02.Theme/desktop/src/render.h#L184 > Note that the function gets osg::Geode that has already been extracted > from osg::Node. > > Here's a sample class to print whole osg::Node structure (replace > log::logprintf with printf): > https://github.com/OGStudio/openscenegraph-cross-platform-examples/blob/f692fd8b0886dbdba1d4e99087998e87827056db/features/scene/PrintGraphVisitor.cpp > You need to create this class instance and call > 'yourNode.accept(instance);' to have the structure printed. > On Wed, 8 Aug 2018 at 15:43, Werner Modenbach > <werner.modenb...@texion.eu> wrote: >> Hi Mike, >> >> the loaded node isn't just a single node but a treelike structure where >> your actual geode(s) is/are located somewhere in the structure. >> What you mean by vertex Id? Each geode contains 1 or more drawables and >> each drawable contains a vertex array and eventually texCoordArray(s). >> >> So you have to identify the geode your vertex is in. Then you can try to >> dynamic_cast. Anyway you need to check if your cast returned 0. >> >> The next problem is the osg::Array. I didn't find a solution for that so >> far. If you kno >> >> Am 06.08.2018 um 16:27 schrieb Mike Blakefiled: >>> Hi everyone, I'm new here. >>> >>> I load an obj file with osgDB::readNodeFile("my.obj") and add it to my >>> scene. >>> now, given a vertex Id, I'd like to be able to get its UV/Texture >>> coordinate. >>> >>> I can see that osg::Geometry has a getTexCoordArray() method, but >>> dynamically casting my node to org::Geometry crashes the program. >>> moreover, according to the docs, getTexCoordArray() simply returns a >>> pointer to osg::Array, and it's unclear what type the elements of that >>> array is (osg::Vec2?) >>> ... >>> >>> Thank you! >>> >>> Cheers, >>> mike >>> >>> ------------------ >>> Read this topic online here: >>> http://forum.openscenegraph.org/viewtopic.php?p=74473#74473 >>> >>> >>> >>> >>> >>> _______________________________________________ >>> osg-users mailing list >>> osg-users@lists.openscenegraph.org >>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> >> _______________________________________________ >> osg-users mailing list >> osg-users@lists.openscenegraph.org >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- *TEXION Software Solutions, Rotter Bruch 26a, D-52068 Aachen* Phone: +49 241 475757-0 Fax: +49 241 475757-29 Web: http://texion.eu eMail: i...@texion.eu
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