不好意思 刚刚上传的 没注意少了个函数文件 宽网道路的快速半自动提取，首先给定一个种子点然后选取方向对图像的道路进行提取-Sorry did not pay attention to just upload a smaller width function documents the rapid semi-automatic road network extraction, first of all, given a seed point and then select the direction of the image of the road extraction