DDA画线算法，是计算机图形学原理及算法里的一种很简单的栅格数据的直线画法-DDA line drawing algorithm, computer graphics theory and algorithms inside a very simple straight-line drawing method of raster data

A*算法；路径规划；matlab栅格法;全局路径规划算法需要画栅格地图，添加障碍物，起点，目标点，本例程可以生成地图(path planning;The global path planning algorithm needs to draw a raster map, add obstacles, starting points, target points, this routine can generate a map)