58 lines
1.4 KiB
Plaintext
58 lines
1.4 KiB
Plaintext
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//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef OSG_CONVEXPLANERPOLYGON
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#define OSG_CONVEXPLANERPOLYGON 1
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#include <osg/Plane>
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#include <vector>
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namespace osg {
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class BoundingBox;
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class BoundingSphere;
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/** A ClippingVolume class for representing convex clipping volumes made up.
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* When adding planes, their normals should point inwards (into the volume) */
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class SG_EXPORT ConvexPlanerPolygon
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{
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public:
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inline ConvexPlanerPolygon() {}
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float area() { return _area; }
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const Vec3& center() { return _center; }
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const Vec3& normal() { return _normal; }
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typedef std::vector<osg::Vec3> VertexList;
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void add(const Vec3& v) { _vertexList.push_back(v); }
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VertexList& getVertexList() { return _vertexList; }
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const VertexList& getVertexList() const { return _vertexList; }
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void computeAttributes();
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void computeBound(BoundingBox& bb) const;
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void computeBound(BoundingSphere& bs) const;
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protected:
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float _area;
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Vec3 _center;
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Vec3 _normal;
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VertexList _vertexList;
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};
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} // end of namespace
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#endif
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