Description
This object is a 2D/3D line composed of line and arc (bulges) segments. Polyline is specified by an array of Vertexes (points). When the Polyline has thickness then the extrusion vector of the polyline defines the direction of the thickness.
Polyline can be Open or Closed, can be SPLine and be filled with a color or a hatch.
Remarks
Bulge Geometry :
