64 lines
1.9 KiB
Plaintext
64 lines
1.9 KiB
Plaintext
#ifndef OSG_SEG
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#define OSG_SEG 1
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#include <osg/Vec3>
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#include <osg/Types>
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#include <osg/Matrix>
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#include <osg/Referenced>
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#include <osg/BoundingBox>
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#include <osg/BoundingSphere>
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namespace osg {
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/** Segment class for representing a line segment.*/
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class SG_EXPORT Seg : public Referenced
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{
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public:
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Seg() {};
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Seg(const Seg& seg) : Referenced(),_s(seg._s),_e(seg._e) {}
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Seg(const Vec3& s,const Vec3& e) : _s(s),_e(e) {}
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virtual ~Seg() {}
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Seg& operator = (const Seg& seg) { _s = seg._s; _e = seg._e; return *this; }
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void set(const Vec3& s,const Vec3& e) { _s=s; _e=e; }
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const Vec3& start() const { return _s; }
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Vec3& start() { return _s; }
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const Vec3& end() const { return _e; }
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Vec3& end() { return _e; }
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/** return true if segment intersects BoundingBox.*/
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bool intersect(const BoundingBox& bb) const;
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/** return true if segment intersects BoundingSphere and return the intersection ratio's.*/
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bool intersect(const BoundingBox& bb,float& r1,float& r2) const;
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/** return true if segment intersects BoundingSphere.*/
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bool intersect(const BoundingSphere& bs) const;
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/** return true if segment intersects BoundingSphere and return the intersection ratio's.*/
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bool intersect(const BoundingSphere& bs,float& r1,float& r2) const;
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/** return true if segment intersects triangle and set ratio long segment. */
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bool intersect(const Vec3& v1,const Vec3& v2,const Vec3& v3,float& r);
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/** post multiply a segment by matrix.*/
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void mult(const Seg& seg,const Matrix& m) { _s = seg._s*m; _e = seg._e*m; }
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/** pre multiply a segment by matrix.*/
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void mult(const Matrix& m,const Seg& seg) { _s = m*seg._s; _e = m*seg._e; }
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protected:
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static bool intersectAndClip(Vec3& s,Vec3& e,const BoundingBox& bb);
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Vec3 _s;
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Vec3 _e;
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};
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};
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#endif
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