OPENGL选取对象放大/鼠标点击图形进行放大-OPENGL select the object to enlarge/mouse click to enlarge graph

OPENGL is a visual component, which provides a simple user interface for drawing simple OPENGL. User can draw nodes (vertices) on the control s client area and link them together (graph s edges or arcs) by either keyboard or mouse. Currently the comp

OSG开源教程(转).doc 在最底层对OpenGL基本几何进行松散的包装，中级是使用Open Scene Graph的基本形状，以及更高级一些的从文件读取