Yes, I have read most of them. But I just confused the differences between the group and geode nodes. Now I think I got more clear about this. Thank you. So my question is how to achieve all the geode nodes? Is it still using NodeVisitor? Or there is another methods?
Lei Quoting Adrian Egli <[EMAIL PROTECTED]>: > 2006/5/21, [EMAIL PROTECTED] <[EMAIL PROTECTED]>: > > > > Thank you for the reply. > > In my case, I created a scene in which there are a few models in 3D > studio > > Max and save it as .osg file. Of course these models are not merged as > one > > model. Each model has its own name. And then I do an osg application to > > load this file. So my program is not to merge the .osg file, but it is > > just > > to load the file. Next what I want to do is to find every model(or as > what > > you said: objects, geode, groups) and achieve their names one by one. > > > > I do want to "walk through" the scenegraph and collect the node > reference. > > But that is my question. How to "walk through" the scenegraph and > collect > > the node reference? > > > you might have to use a NodeVisitor. (#include <osg/NodeVisitor>) > > > > So far there is another problem always confusing me. In osg, what a group > > includes? For instance, in a scenegraph, there is only a box with green > > color. Does the box group include only the box geode, its colour and > its > > position? If there are two boxes, does that means there are two groups, > > and > > each group contains a box geode and its related properties? > > > > no of course not two boxes == two groups. a grouping node is a node which > can have > a child (node). the child can my an other grouping node (group) or a > geode , > or ... > a geode is just a node which can contain some geometry data. geometry or > shapedrawable ( drawable) the box is a shape. which can be included into > a > shapedrawable. > > may you have to look at some simple examples. an openescenegraph have a > lot > of them. > > adegli > > > Thank you very much. > > > > > > > > Quoting Adrian Egli <[EMAIL PROTECTED]>: > > > > > ok, it's a quite hard question. because if you load a lot different > > files > > > into > > > a whole scenegraph and merge the loaded group with the global > > scenegraph, > > > you can no longer say, that's a model. because the global becomes > your > > > model. > > > :-) also i guess you ask how you can find some objects, geode, groups > in > > > the > > > scenegraph. > > > if you load a external file, you can add each time a field called > name. > > > node->getName(). > > > so you have just walk trough the scenegraph and collect the node > > > referance > > > and the node name. if you find a node with the name you are currently > > > looking for, this would be the place where you can start working on > the > > > loaded model in the global scene (model) > > > > > > adegli > > > > > > 2006/5/21, [EMAIL PROTECTED] <[EMAIL PROTECTED]>: > > > > > > > > Hi: > > > > > > > > I loaded a file in which contains quite a few models. How can I > know > > > the > > > > number of the models and get their names? Thanks a lot. > > > > > > > > Cheers > > > > > > > > > > > > > > > > _______________________________________________ > > > > 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/ > > > _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
