二维规则网格数据的等值线追踪， 追踪算法为网格追踪法， 线绘制，可配置颜色 所读取的数据的文件格式为：surfer软件的ASCii grd文件数据-2D mesh contour data tracking, tracing algorithm for tracking grid, line drawing, color can be configured by reading the data file formats : surfer software ASCii grd document

Simple c++ implementation of the ray tracing algorithm that requires no extra libraries.

Simple C++ Implementation of the path-tracing algorithm for computer graphics. It requires no extra libraries.

Astar和Dstar寻迹算法的实现，可以直接编译运行，会呈现寻迹路线。(The implementation of Astar and Dstar's tracing algorithm can be compiled and run directly, and the tracing route will be presented.)