public void TransformVectors(PointF[] points)
{
var pts = points.Select(p => new SKPoint(p.X, p.Y)).ToArray();
var mappedPoints = _m.MapVectors(pts);
for (int i = 0; i < mappedPoints.Length; i++)
{
points[i].X = mappedPoints[i].X;
points[i].Y = mappedPoints[i].Y;
}
}