Shadow outline

[Ewan_Opie]

Have a look here

Flatten Solid onto plane

[20170822-6] //Reference Surface that exceeds the extents of the Object and normal to projection direction s1 = Line.ByStartPointEndPoint(Point.ByCoordinates(0,20,-20),Point.ByCoordinates(20,0,-20)).Extrude(Vector.ZAxis(),40); n1 = (s1.NormalAtParameter(0.5,0.5)); p1 = s1<1>.PointAtParameter((0..1..#n)<2>,(0..1..#n)<3>); b1 = List.Count(p1.Project(o1,n1)<1><2>)>0; p2 = List.FilterByBoolMask(p1,b1)["in"]; p3 = List.Clean(List.FirstItem(p2<1>),false); p4 = List.Reverse(List.Clean(List.LastItem…

What shape/structure are you projecting?