public void Rotate(double radians, double?centerX = null, double?centerY = null)
{
Matrix m = centerX != null || centerY != null
? Matrix.Rotation(radians, centerX ?? 0, centerY ?? 0)
: Matrix.Rotation(radians);
change(m * _current);
}
public static Matrix Rotate(this Matrix m, double radians, double cx, double cy)
{
return(m * Matrix.Rotation(radians, cx, cy));
}
public static Matrix Rotate(this Matrix m, double radians)
{
return(m * Matrix.Rotation(radians));
}
