SceneKit custom geometry: I know multi position(SCNVector). how do I create the custom geometry

Question

SceneKit custom geometry:  

I know multi position( SCNVector ).

how do I create the custom geometry .

the bottom side position:(0,0,0) (50,0,0) (50,0,-50) (150,0,-50) (150,0,125) (0,0,125) (25,0,75) (25,0,50) (0,0,50)

the top side position:(0,2,0) (50,2,0) (50,2,-50) (150,2,-50) (150,2,125) (0,2,125) (25,2,75) (25,2,50) (0,2,50),   y—axis move 2

Answer 1

假定您具有恒定高度的扁平形状，则最容易为该形状创建2D UIBezierPath并创建具有该路径的拉伸SCNShape ，其中拉伸深度是几何图形的厚度。