public CurveLoopUV(CurveLoop curveLoop, Face face)
{
Loop3d = curveLoop;
_loop2d = new CurveLoop();
var points3d = Loop3d.SelectMany(curve => curve.Tessellate().Skip(1));
var pointsUv = points3d.Select(point3d => face.Project(point3d).UVPoint);
var points2d = pointsUv.Select(pointUv => new XYZ(pointUv.U, pointUv.V, 0)).ToList();
MinX = MinY = 1.0e100;
MaxX = MaxY = -1.0e100;
var nPoints = points2d.Count;
for (var i = 0; i < nPoints; i++)
{
var p1 = points2d[i];
var p2 = points2d[(i + 1) % nPoints];
_loop2d.Append(Line.CreateBound(p1, p2));
if (p1.X < MinX)
{
MinX = p1.X;
}
if (p1.Y < MinY)
{
MinY = p1.Y;
}
if (p1.X > MaxX)
{
MaxX = p1.X;
}
if (p1.Y > MaxY)
{
MaxY = p1.Y;
}
}
}