IceSegment.h

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// Include Guard
#ifndef __ICESEGMENT_H__
#define __ICESEGMENT_H__

        class ICEMATHS_API Segment
        {
                public:
                inline_                                 Segment()                                                                                                                       {}
                inline_                                 Segment(const Point& p0, const Point& p1) : mP0(p0), mP1(p1)            {}
                inline_                                 Segment(const Segment& seg) : mP0(seg.mP0), mP1(seg.mP1)                        {}
                inline_                                 ~Segment()                                                                                                                      {}

                inline_ const   Point&  GetOrigin()                                             const   { return mP0;                                           }
                inline_                 Point   ComputeDirection()                              const   { return mP1 - mP0;                                     }
                inline_                 void    ComputeDirection(Point& dir)    const   { dir = mP1 - mP0;                                      }
                inline_                 float   ComputeLength()                                 const   { return mP1.Distance(mP0);                     }
                inline_                 float   ComputeSquareLength()                   const   { return mP1.SquareDistance(mP0);       }

                inline_                 void    SetOriginDirection(const Point& origin, const Point& direction)
                                                                {
                                                                        mP0 = mP1 = origin;
                                                                        mP1 += direction;
                                                                }


                inline_                 void    ComputePoint(Point& pt, float t)        const   {       pt = mP0 + t * (mP1 - mP0);             }

                                                float   SquareDistance(const Point& point, float* t=null)       const;
                inline_                 float   Distance(const Point& point, float* t=null)                     const                   { return sqrtf(SquareDistance(point, t));       }

                                                Point   mP0;            
                                                Point   mP1;            
        };

#endif // __ICESEGMENT_H__