Ahoj Petr,
you can override the bound volume calculation with your own code via
callback. Have a look in the Node class
/** Callback to allow users to override the default computation of bounding
volume.*/
struct ComputeBoundingSphereCallback : public osg::Object
{
....
virtual BoundingSphere computeBound(const osg::Node&) const {
return BoundingSphere(); }
};
so here you do the default Node::computeBound and adjust the radius by
something small (like radius *= 1.1)
Hope this helps
Nick
On Fri, Mar 28, 2014 at 10:00 PM, Petr Svoboda <[email protected]> wrote:
> Hi,
>
> I would like to ask if there is some way how to create bigger bounding box
> over some model to make it easier to pick it/ intersect with.
> For example if there is a cow.osg model and I want to pick it then how do
> it in a way that I dont need to click with my mouse exactly on that model
> but a bit "next to it".
> Is that was is osg::BoundingBox made for? Or the purpose of BoundingBox is
> just for culling etc.?
> I would like to use osg::LineSegmentIntersector + osg::IntersectVisitor.
>
> Thank you!
>
> Cheers,
> Petr
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=58760#58760
>
>
>
>
>
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>
--
trajce nikolov nick
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