/// <summary>
/// Returns new array containing transformed points.
/// </summary>
public static V2d[] TransformedPos(this V2d[] pointArray, M33d m)
{
return(new V2d[pointArray.LongLength].SetByIndexLong(i => m.TransformPos(pointArray[i])));
}
/// <summary> /// Returns new polygon with point transformed. /// </summary> public static IImmutablePolygon <V2d> TransformPoint(this IImmutablePolygon <V2d> self, int index, M33d trafo) => self.SetPoint(index, trafo.TransformPos(self.Points[index]));