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Introduced bounding boxes to KDLeaf and KDNode structs

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This commit is contained in:
Robert Osfield 2008-07-03 17:18:14 +00:00
parent 178d6ff423
commit e2ae39c8f6
2 changed files with 46 additions and 2 deletions
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1
examples/osgkdtree/variabledivision.cpp
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@ -299,6 +299,7 @@ int KDTreeBuilder::divide(KDTree& kdTree, osg::BoundingBox& bb, int nodeIndex, u
kdTree.getNode(nodeNum).first = leftChildIndex; kdTree.getNode(nodeNum).first = leftChildIndex;
kdTree.getNode(nodeNum).second = rightChildIndex; kdTree.getNode(nodeNum).second = rightChildIndex;
return nodeNum; return nodeNum;
} }

47
examples/osgkdtree/variabledivision.h
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@ -51,8 +51,38 @@ typedef std::vector< value_type > Indices;
//#define VERBOSE_OUTPUT //#define VERBOSE_OUTPUT
typedef std::pair< value_type, value_type> KDNode; struct KDNode
typedef std::pair< value_type, value_type> KDLeaf; {
KDNode():
first(0),
second(0) {}
KDNode(value_type f, value_type s):
first(f),
second(s) {}
value_type first;
value_type second;
osg::BoundingBox bb;
};
struct KDLeaf
{
KDLeaf():
first(0),
second(0) {}
KDLeaf(value_type f, value_type s):
first(f),
second(s) {}
value_type first;
value_type second;
osg::BoundingBox bb;
};
struct Triangle struct Triangle
{ {
@ -136,6 +166,19 @@ class KDTree : public osg::Shape
return _kdNodes[nodeNum]; return _kdNodes[nodeNum];
} }
osg::BoundingBox& getBounindingBox(int nodeNum)
{
if (nodeNum<0)
{
int num = -nodeNum-1;
return _kdLeaves[num].bb;
}
else
{
return _kdNodes[nodeNum].bb;
}
}
typedef std::vector< osg::BoundingBox > BoundingBoxList; typedef std::vector< osg::BoundingBox > BoundingBoxList;
typedef std::vector< Triangle > TriangleList; typedef std::vector< Triangle > TriangleList;