Google maps切割方法



每个切割的小图片是256*256（像素），常识来判断每个小图片代表的实际区域长宽之比应为2：1，但由于投影不同的存在，其实它是1：1 的，至于中间过程怎么处理的我也没搞明白。

关于51ditu -Google maps of each cutting method of cutting a small picture is 256* 256 (pixels), common sense to judge each picture on behalf of the actual length and width ratio of the region should be 2:1, but because of the existence of different projection, in fact, it is one : 1, as the deal between the process of how I did not engage in to understand. About 51ditu