_context _id _parent _refcount _shape _tag addRef clone context getID getParent getTag getType MgShapeExt release setContext setParent setTag shape shapec ~MgShapeExt

shape() MgBaseShape* MgShapeExt::shape ( ) virtual 返回几何图形对象 实现了 MgShape. 这是这个函数的调用关系图: