internal static float GetScale(DenseMatrix matrix)
{
_points[0] = 0;
_points[1] = 0;
// Use sqrt(2) so that the hypotenuse is of length 1.
_points[2] = Sqrt2;
_points[3] = Sqrt2;
matrix.MapPoints(ref _points);
var dx = _points[2] - _points[0];
var dy = _points[3] - _points[1];
// TODO: figure out why the result needs to be divided by 2.
return((float)MathExt.Hypot(dx, dy) / 2f);
}
internal static float GetScale(Matrix3X3 matrix)
{
_points[0].X = 0;
_points[0].Y = 0;
_points[1].X = Sqrt2;
_points[1].Y = Sqrt2;
// Use sqrt(2) so that the hypotenuse is of length 1.
matrix.MapPoints(ref _points);
var dx = _points[1].X - _points[0].X;
var dy = _points[1].Y - _points[0].Y;
// TODO: figure out why the result needs to be divided by 2.
return((float)MathExt.Hypot(dx, dy) / 2f);
}
