HI Vinvent, A nested callback, is simply a NodeCallback which has another NodeCallback nested in side it. There is an _nestedCallback pointer in NodeCallback to provide the hooks for doing this.
A nested set of NodeCallback's can be any length - it effectively just a linked list. Robert. On Tue, Jul 22, 2008 at 2:17 PM, Vincent Bourdier <[EMAIL PROTECTED]> wrote: > Hi all, > > I'm trying to add more than one nodeCallback on a single node. It would be > very useful for my application. > > First way : > > In the archive, I founded this : > http://lists.openscenegraph.org/htdig.cgi/osg-users-openscenegraph.org/2007-October/003905.html > I didn't saw it in OSG sources, so I suppose it hasn't been implemented ? > > Other way to do it : > > In the explanation, I found the following code : > >> if (node->getUpdateCallback()) >> node->getUpdateCallback()->addNestedCallback(callback); >> else >> node->setUpdateCallback(callback); > > What is the difference between a "nested" callback and a normal nodeCallback > ? > How many nested callback is it possible to add ? > > Thanks a lot, > > Regards, > Vincent. > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
