Updated MakePolygon to include arc polygons.
Updated MakePolygon to include arc polygons.

Funcan/heekscad,satovey/heekscad,Funcan/heekscad,haiqiangwang/heekscad,Funcan/heekscad,haiqiangwang/heekscad,satovey/heekscad,haiqiangwang/heekscad,satovey/heekscad,satovey/heekscad,Funcan/heekscad,haiqiangwang/heekscad