GuSegment.h

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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  
 
#ifndef GU_SEGMENT_H
#define GU_SEGMENT_H
#include "foundation/PxVec3.h"
 
namespace physx
{
namespace Gu
{
 
    class Segment
    {
    public:
        PX_INLINE Segment()
        {
        }
 
        PX_INLINE Segment(const PxVec3& _p0, const PxVec3& _p1) : p0(_p0), p1(_p1)
        {
        }
 
        PX_INLINE Segment(const Segment& seg) : p0(seg.p0), p1(seg.p1)
        {
        }
 
        PX_INLINE ~Segment()
        {
        }
 
        PX_INLINE Segment& operator=(const Segment& other)
        {
            p0 = other.p0; 
            p1 = other.p1; 
            return *this;
        }
 
        PX_INLINE bool operator==(const Segment& other) const
        {
            return (p0==other.p0 && p1==other.p1);
        }
 
        PX_INLINE bool operator!=(const Segment& other) const
        {
            return (p0!=other.p0 || p1!=other.p1);
        }
 
        PX_INLINE const PxVec3& getOrigin() const
        {
            return p0;
        }
 
        PX_INLINE PxVec3 computeDirection() const
        {
            return p1 - p0;
        }
 
        PX_INLINE void computeDirection(PxVec3& dir) const
        {
            dir = p1 - p0;
        }
 
        PX_INLINE PxVec3 computeCenter() const
        {
            return (p0 + p1)*0.5f;
        }
 
        PX_INLINE PxF32 computeLength() const
        {
            return (p1-p0).magnitude();
        }
 
        PX_INLINE PxF32 computeSquareLength() const
        {
            return (p1-p0).magnitudeSquared();
        }
 
        // PT: TODO: remove this one
        PX_INLINE PxReal lengthSquared() const
        {
            return ((p1 - p0).magnitudeSquared());
        }
 
        // PT: TODO: remove this one
        PX_INLINE PxReal length() const
        {
            return ((p1 - p0).magnitude());
        }
 
        /*      PX_INLINE void setOriginDirection(const PxVec3& origin, const PxVec3& direction)
        {
        p0 = p1 = origin;
        p1 += direction;
        }*/
 
        PX_INLINE void computePoint(PxVec3& pt, PxF32 t) const
        {
            pt = p0 + t * (p1 - p0);
        }
 
        // PT: TODO: remove this one
        PX_INLINE PxVec3 getPointAt(PxReal t) const
        {
            return (p1 - p0)*t + p0;
        }
 
        PxVec3  p0;     
        PxVec3  p1;     
    };
    PX_COMPILE_TIME_ASSERT(sizeof(Gu::Segment) == 24);
}
 
}
 
#endif