FGFS-4.1/OpenSceneGraph
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Added intersect method.

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This commit is contained in:
Robert Osfield
2003-11-25 10:56:42 +00:00
parent d82b3d0105
commit 9c311b4077
1 changed files with 9 additions and 1 deletions
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10
include/osg/BoundingBox
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@@ -61,7 +61,7 @@ class SG_EXPORT BoundingBox
inline bool valid() const
{
return _max.x()>=_min.x();
return _max.x()>=_min.x() && _max.y()>=_min.y() && _max.z()>=_min.z();
}
inline void set (float xmin,float ymin,float zmin,
@@ -161,6 +161,14 @@ class SG_EXPORT BoundingBox
/** If incoming sphere is out-with the box expand to encompass incoming sphere.
If this box is empty then move set this box to encompass the sphere. */
void expandBy(const BoundingSphere& sh);
/** Compute the intesection of this bounding box with the specified bounding box.*/
BoundingBox intersect(const BoundingBox& bb) const
{ return osg::BoundingBox(osg::maximum(xMin(),bb.xMin()),osg::maximum(yMin(),bb.yMin()),osg::maximum(zMin(),bb.zMin()),
osg::minimum(xMax(),bb.xMax()),osg::minimum(yMax(),bb.yMax()),osg::minimum(zMax(),bb.zMax()));
}
/** return true is vertex v is within the box.*/
inline bool contains(const Vec3& v) const