public virtual Point2D InverseTransform(Point2D src, Point2D dst)
{
double det = GetDeterminant();
if (Math.Abs(det) < ZERO)
{
// awt.204=Determinant is zero
throw new InvalidOperationException("awt.204");
}
if (dst == null)
{
if (src is Point2D.Double)
{
dst = new Point2D.Double();
}
else
{
dst = new Point2D.Float();
}
}
double x = src.GetX() - _m02;
double y = src.GetY() - _m12;
dst.SetLocation((x * _m11 - y * _m01) / det, (y * _m00 - x * _m10) / det);
return(dst);
}
public virtual Point2D DeltaTransform(Point2D src, Point2D dst)
{
if (dst == null)
{
if (src is Point2D.Double)
{
dst = new Point2D.Double();
}
else
{
dst = new Point2D.Float();
}
}
double x = src.GetX();
double y = src.GetY();
dst.SetLocation(x * _m00 + y * _m01, x * _m10 + y * _m11);
return(dst);
}
public virtual void Transform(Point2D[] src, int srcOff, Point2D[] dst, int dstOff, int length)
{
while (--length >= 0)
{
Point2D srcPoint = src[srcOff++];
double x = srcPoint.GetX();
double y = srcPoint.GetY();
Point2D dstPoint = dst[dstOff];
if (dstPoint == null)
{
if (srcPoint is Point2D.Double)
{
dstPoint = new Point2D.Double();
}
else
{
dstPoint = new Point2D.Float();
}
}
dstPoint.SetLocation(x * _m00 + y * _m01 + _m02, x * _m10 + y * _m11 + _m12);
dst[dstOff++] = dstPoint;
}
}
