Christian Sam wrote: > i think if i use smart-pointers, i would be able to check if the actual > polygons in the scenegraph are still valid (check the ref counter) without > the need of a dirty flag. > but if the polygons get changed/deleted (e.g. when i want to load a new set > of polygon features) the properties i'm pointing to wouldn't be deleted as > long as the smart-pointers are referencing them. >
You say that like it's a bad thing. If you use bare pointers, are you ever going to encounter a situation where you have a pointer to something that's been deleted? Using smart pointers (or any RAII wrapper object) is rarely a bad idea. I would be worried however, about overloading the meaning of the reference counter to also indicate dirtiness. I would be tempted to add an isDirty() method. That way you can use a bool or the reference count and can easily change from one implementation to another. Cory _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
