private float Area(PointList contour)
{
int n = contour.Size();
float sA = 0.0f;
for (int p = n - 1, q = 0; q < n; p = q++)
{
Point contourP = contour.Get(p);
Point contourQ = contour.Get(q);
sA += contourP.GetX() * contourQ.GetY() - contourQ.GetX()
* contourP.GetY();
}
return(sA * 0.5f);
}
public void SetLocation(Point p)
{
this.x = p.GetX();
this.y = p.GetY();
}
public void SetLocation(Point p)
{
this.x = p.GetX();
this.y = p.GetY();
}
public float PtLineDistSq(Point pt)
{
return(PtLineDistSq(GetX1(), GetY1(), GetX2(), GetY2(), pt.GetX(),
pt.GetY()));
}
public float PtSegDistSq(Point pt)
{
return PtSegDistSq(GetX1(), GetY1(), GetX2(), GetY2(), pt.GetX(),
pt.GetY());
}
public float PtLineDist(Point pt)
{
return PtLineDist(GetX1(), GetY1(), GetX2(), GetY2(), pt.GetX(),
pt.GetY());
}