AutoCAD ObjectArx 插件，用来炸碎AutoCAD一系列实体，如多段线、图块、自定义实体等。可以用来学习AutoCAD ObjectArx C++ 开发入门。-ObjectArx plug-in for AutoCAD shattering series of entities, such as polylines, blocks, custom entities. It can be used to learn AutoCAD ObjectArx C++ development