Hi Serge,
I think what you write could be a good solution, but how could i check if
the node is a Geode ?
I have just look at the functions of a node and i haven't found anything
like this.
2007/5/3, Serge Lages <[EMAIL PROTECTED]>:
On 5/3/07, christophe loustaunau <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I wan't to modifie the value of some vertex of my scene.
>
> I read a model from a file and store it in a node :
>
> osg::ref_ptr<osg::Node> node (new osg::Node());
> node=osgDB::readNodeFile(file);
>
> Then i wan't to change the value of some vertex of that node.
> I have made a class with a node visitor :
>
> class Planet : public osg::NodeCallback
> {
> public:
> ...
> virtual void operator()( osg::Node* node, osg::NodeVisitor* nv
> )
> {
> // Continue traversing so that OSG can proces/ any other
> nodes with callbacks.
> traverse( node, nv );
> }
> ...
> }
>
> But now i don't know how to get the array of vertex with this
> NodeVisitor, i haven't found any function to do this.
>
> If someone knows how to do this it will be helpfull.
> thanks.
>
>
Hi Christophe,
In an OSG scene, vertex are stored into geometries (osg::Geometry, derived
from osg::Drawable), and geometries are stored into an osg::Geode (which
derive from osg::Node).
So in your visitor, you have to check if your current node is a Geode, if
yes, you can retrieve the drawables and check if they are geometries, and if
it is the case, you have all the needed methods to modify the vertex into
the osg::Geometry class.
I hope this helps !
--
Serge Lages
http://www.magrathea-engine.org
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
