3D网格模型读取、显示、交互拾取、操作的框架代码-3D mesh model to read, display, interactive pickup, the operation of the framework code

可以显示obj3D模型，资料是从网上找的，采用WPF实现，有需要的可以参考下(Can display the obj3D model, the data is found from the Internet, the use of WPF implementation, there is a need to refer to the next)