Calculating bounding box

From: Athanasios Gaitatzes (gaitat++at++fhw.gr)
Date: 04/27/2000 04:36:07

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Hello,

           pfDCS
            / \
         / \
      / \
 pfGeode pfGeode

In a scene graph when I ask for the bbox of each of the nodes I get the
bbox of the graph below that node. Is there a traversal that would give
me the accumulated bbox, after the transformations above a node have
been applied to the nodes?
So in the example above when calculating the bbox at the pfGeodes I
would like the pfDCS applied to it before getting the bbox back.

In the manual it says that a pfTraverser has a getMat method that
returns the "concatenation of the matrices from the root of the scene
down to and including the current node".
But looking in the libpfutil/trav.c code at pfuTravCalcBBox it uses a
pfuTraverser not a pfTraverser.

Any help would be appreciated.

pfThank you

--
Athanasios Gaitatzes (gaitat++at++fhw.gr)
Virtual Reality Department
Foundation of the Hellenic World
38 Poulopoulou St., Athens 11851, Greece
Tel: +30 1 3422292 Fax: +30 1 3422272

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