| public TransformPoint ( double &x, double &y ) : void | ||
| x | double | |
| y | double | |
| Результат | void | |
public void DeviceToUser(ref double x, ref double y)
{
Cairo.Matrix inv = (Cairo.Matrix) this.transformMatrix.Clone();
Cairo.Status cs = inv.Invert();
if (cs == Cairo.Status.Success)
{
inv.TransformPoint(ref x, ref y);
}
else
{
throw new Exception("Unable to transform device coordinates to user coordinates because the matrix was uninvertible (" + cs.ToString() + ").");
}
}
public static List<List<IntPoint>> Transform(List<List<IntPoint>> selection, Matrix transform)
{
List<List<IntPoint>> newPolygons = new List<List<IntPoint>> ();
foreach (List<IntPoint> ipL in selection) {
List<IntPoint> newPolygon = new List<IntPoint> ();
foreach (IntPoint ip in ipL) {
double x = ip.X;
double y = ip.Y;
transform.TransformPoint (ref x, ref y);
newPolygon.Add (new IntPoint ((long)x, (long)y));
}
newPolygons.Add (newPolygon);
}
return newPolygons;
}
