Access vertices or shapes made by pen tool via extendscript

[Evgenii Fil]

I am trying to come up with a way to round corners (simillar to rectangale roundness) of custom shapes made with pen tool. But first I would like to know if there any way at all to access and change the path data via script or expression? I was checking docs and haven't found much 

[Dan Ebberts · Accepted solution]

You can access path data via both scripts and expressions, although the syntax is somewhat different. With expressions, you use the path.points(), path.inTangents(), and path.outTangents() methods. With scripting you access a shape object and use the shape.vertices, shape.inTangents and shape.outTangents attributes. Everything you need is in the AE Help or AE Scripting Guide.