cocos2dx：The offset property can not be set when make polygon shape ？

[237676098]

I see the code "PhysicsShapePolygon::create(polygon->vertices, polygon->numVertices, material, fd->center) " when add PolygonShape to body in the createBodyWithName function.But the fd.center property not be setted when parsed in function PhysicsShapeCache::addShapesWithFile(const std::string &plist, float scaleFactor).So I think should the fd.center be changed to fd.anchorPoint ?