地形三维可视化系统框架的建立，添加OpenGL框架代码和文件，程序实现。OCI公共类的实现，进一步学习OCI程序设计和OCI函数。-Terrain Visualization System fr a mework in place, add the OpenGL fr a mework of the code and documentation, program realization. OCI public class implementation, further study OCI OCI