Robert Osfield wrote on Monday, March 05, 2007 3:17 AM:
> Hi Peter,
>
> osg::Sphere is a sublcass from osg::Shape, not a subclass from
> osg::Drawable, so its not approrpriate to cast a drawable to a Sphere,
> I would expect at least a crash from what you are doing.
>
> Robert.
>
> On 3/4/07, Peter Steibert <[EMAIL PROTECTED]> wrote:
>> struct DrawableUpdateCallback : public osg::Drawable::UpdateCallback
>> { float _angle;
>>
>> virtual void update(osg::NodeVisitor*, osg::Drawable* drawable)
>> { if (drawable->getName() == "Sphere")
>> {
>> osg::Sphere* sphereShape = (osg::Sphere*)
>> drawable->getShape(); _angle = _angle + 0.02;
>> float radius = abs(30*cos(_angle));
>> sphereShape->setRadius(radius);
>> }
>> }
>> };
Actually, he calls getShape() on the drawable, so that's not a problem.
Unless the drawable has no shape or its shape isn't a Sphere ;)
--
Bryan Thrall
FlightSafety International
[EMAIL PROTECTED]
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