Hi guys, I'm new to osg... so bare with me
>From the MFC application i get two CPoint points and I try to do some >geometrical transformations. I'm using osg::PositionAttitudeTransform in order to rotate, scale and translate a model. Code: osg::ref_ptr<osg::PositionAttitudeTransform> _pat = new osg::PositionAttitudeTransform(); and then I'm adding the model as a child to _pat. What i do is to get the center weight point for the model and this: Code: _pat->setPivotPoint(centerWeightPoint); _pat->setPosition(centerWeightPoint); I've implemented the Scale: Code: osg::Vec3d scale = _pat->getScale(); osg::Vec3d actualScale = osg::Vec3d(scale.x() * scaleFactor, scale.y() * scaleFactor, scale.z() * scaleFactor); _pat->setScale(actualScale); the Translate (here the z is always 0 from input) : Code: osg::Vec3f translate = _pat->getPosition(); translate += osg::Vec3f(x, y, z); _pat->setPosition(translate); My problem is that scale and translate don't work very accurate. The translation seems to be more than that (like it would apply a rotation too) and the scale kind of stretches my model in some directions more than in others. Is that something I'm missing? Do I have problems when i get from CPoint (2D) to my model which is 3D? Thank you! Cheers, Andrei ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16776#16776 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
