VTX.py 文件源码

def execute(self, context):

        # final attempt to enter unfragmented bm/mesh
        # ghastly, but what can I do? it works with these
        # fails without.
        bpy.ops.object.mode_set(mode='OBJECT')
        bpy.ops.object.mode_set(mode='EDIT')

        obj = context.active_object
        me = obj.data

        bm = bmesh.from_edit_mesh(me)
        bm.verts.ensure_lookup_table()
        bm.edges.ensure_lookup_table()

        edges = [e for e in bm.edges if e.select and not e.hide]

        if len(edges) == 2:
            message = do_vtx_if_appropriate(bm, edges)
            if isinstance(message, set):
                msg = messages.get(message.pop())
                return self.cancel_message(msg)
            bm = message
        else:
            return self.cancel_message('select two edges!')

        bm.verts.index_update()
        bm.edges.index_update()
        bmesh.update_edit_mesh(me, True)

        return {'FINISHED'}