[osg-users] Volume of .obj model

OpenSceneGraph Users osg-users at lists.openscenegraph.org
Tue Nov 10 06:28:32 PST 2020


I'm currently trying to understand which is the occupation volume of an 
.obj file loaded in the node:

osg::ref_ptr<osg::Node> boat = osgDB::readNodeFile("file.obj");

Then, the problem is that I need to understand the real length, width and 
height of the node.

I found a solution, but I think that the value it isn't correct:

osg::ref_ptr<osg::ComputeBoundsVisitor> cbv = new 
osg::ref_ptr<osg::MatrixTransform> boundingBoxMt = new 
osg::ref_ptr<osg::Geode> boundingBoxGeode = new osg::Geode();
osg::BoundingBox geodeBoundingBox;
osg::BoundingBox bb(cbv->getBoundingBox());
osg::Vec3 ext(bb._max - bb._min);
cout << ext.x() << " " << ext.y() << " " << ext.z() << endl;

Is there a better solution make a correct result?


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