Vegastrike 0.5.1 rc1  1.0
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IceSegment.h
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1 
8 
11 // Include Guard
12 #ifndef __ICESEGMENT_H__
13 #define __ICESEGMENT_H__
14 
15  class ICEMATHS_API Segment
16  {
17  public:
19  inline_ Segment() {}
21  inline_ Segment(const Point& p0, const Point& p1) : mP0(p0), mP1(p1) {}
23  inline_ Segment(const Segment& seg) : mP0(seg.mP0), mP1(seg.mP1) {}
25  inline_ ~Segment() {}
26 
27  inline_ const Point& GetOrigin() const { return mP0; }
28  inline_ Point ComputeDirection() const { return mP1 - mP0; }
29  inline_ void ComputeDirection(Point& dir) const { dir = mP1 - mP0; }
30  inline_ float ComputeLength() const { return mP1.Distance(mP0); }
31  inline_ float ComputeSquareLength() const { return mP1.SquareDistance(mP0); }
32 
33  inline_ void SetOriginDirection(const Point& origin, const Point& direction)
34  {
35  mP0 = mP1 = origin;
36  mP1 += direction;
37  }
38 
40 
45  inline_ void ComputePoint(Point& pt, float t) const { pt = mP0 + t * (mP1 - mP0); }
47 
48  float SquareDistance(const Point& point, float* t=null) const;
49  inline_ float Distance(const Point& point, float* t=null) const { return sqrtf(SquareDistance(point, t)); }
50 
51  Point mP0;
52  Point mP1;
53  };
54 
55 #endif // __ICESEGMENT_H__