这几天学习leaflet在加载天地图时将以前的接口拿来用结果偏差了特别大（差不多是90度），中国纬度到了100多，试了改变投影和y轴翻转的配置都不好使，最后上网搜索到了Leaflet.ChineseTmsProviders（MapGIS的示例也是用的它）查看他的用法发现我用的天地图接口和它不一样，改成它的接口就不会出现纬度偏移特别大的问题了（到现在也没有搜到cva_w和vec_c这两个接口的区别，CGCS200和WGS48么？那也差不了那么多啊！以后找到区别再写上来吧）
正常的：
<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <title>Document</title> <link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.1/dist/leaflet.css" integrity="sha512-Rksm5RenBEKSKFjgI3a41vrjkw4EVPlJ3+OiI65vTjIdo9brlAacEuKOiQ5OFh7cOI1bkDwLqdLw3Zg0cRJAAQ==" crossorigin=""/> <style> #mapid { height: 500px; } </style> </head> <body> <div id="mapid"></div> <script src="https://unpkg.com/leaflet@1.3.1/dist/leaflet.js" integrity="sha512-/Nsx9X4HebavoBvEBuyp3I7od5tA0UzAxs+j83KgC8PU0kgB4XiK4Lfe4y4cgBtaRJQEIFCW+oC506aPT2L1zw==" crossorigin=""></script> <script> var normalm = L.tileLayer(‘http://t{s}.tianditu.cn/DataServer?T=vec_w&X={x}&Y={y}&L={z}‘, { subdomains: [‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘], }); stamenLabels = L.tileLayer(‘http://t{s}.tianditu.cn/DataServer?T=cva_w&X={x}&Y={y}&L={z}‘, { subdomains: [‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘] }); var map = L.map("mapid", { center: [31.59, 120.29], zoom: 12, layers: [normalm], zoomControl: false }); stamenLabels.addTo(map); </script> </body> </html>异常的：
<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <title>Document</title> <link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.1/dist/leaflet.css" integrity="sha512-Rksm5RenBEKSKFjgI3a41vrjkw4EVPlJ3+OiI65vTjIdo9brlAacEuKOiQ5OFh7cOI1bkDwLqdLw3Zg0cRJAAQ==" crossorigin=""/> <style> #mapid { height: 500px; } </style> </head> <body> <div id="mapid"></div> <script src="https://unpkg.com/leaflet@1.3.1/dist/leaflet.js" integrity="sha512-/Nsx9X4HebavoBvEBuyp3I7od5tA0UzAxs+j83KgC8PU0kgB4XiK4Lfe4y4cgBtaRJQEIFCW+oC506aPT2L1zw==" crossorigin=""></script> <script> var normalm = L.tileLayer(‘http://t{s}.tianditu.cn/DataServer?T=vec_c&X={x}&Y={y}&L={z}‘, { subdomains: [‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘], }); stamenLabels = L.tileLayer(‘http://t{s}.tianditu.cn/DataServer?T=cva_c&X={x}&Y={y}&L={z}‘, { subdomains: [‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘] }); var map = L.map("mapid", { center: [31.59, 120.29], zoom: 12, layers: [normalm], zoomControl: false }); stamenLabels.addTo(map); </script> </body> </html>原文：https://www.cnblogs.com/jffun-blog/p/9275769.html