vb+opengl建立的机械制图虚拟模型库，可以网络更新模型库，实现了模型的操作-vb+ opengl established mechanical drawing a virtual model library, you can network update the model library to realize the operation of the model

演示验证了OpenGL与vb结合实现三维结构网格的绘制，网格云图的绘制。鼠标基本交互，包括旋转、平移、缩放，不同视角视图的设置，坐标系绘制，光照，shade的绘制等内容。-Demonstration of the combination of OpenGL and vb to achieve three-dimensional structure of the grid rendering, rendering the grid cloud. Mouse basic interaction, i

演示验证了OpenGL与vb结合实现三维结构网格的绘制，网格云图的绘制。鼠标基本交互，包括旋转、平移、缩放，不同视角视图的设置，坐标系绘制，光照，shade的绘制等内容。-Demonstration of the combination of OpenGL and vb to achieve three-dimensional structure of the grid rendering, rendering the grid cloud. Mouse basic interaction, i