底图采用Web Mercator投影坐标系
获取元数据信息:
http://t0.tianditu.com/img_w/wmts?SERVICE=WMTS&REQUEST=GetCapabilities
http://t0.tianditu.com/vec_w/wmts?SERVICE=WMTS&REQUEST=GetCapabilities
矢量: vec_w
http://t0.tianditu.com/DataServer?T=vec_w&X=210&Y=106&L=8
矢量中文标注: cva_w
http://t0.tianditu.com/DataServer?T=cva_w&X=210&Y=106&L=8
影像:img_w
http://t0.tianditu.com/DataServer?T=img_w&X=210&Y=106&L=8
影像中文标注: cia_w
http://t0.tianditu.com/DataServer?T=cia_w&X=210&Y=106&L=8
地图原点: (-20037508.3427892,20037508.3427892)
精度:
double[] res={
156543.03392800014,
78271.51696402048,
39135.75848201024,
19567.87924100512,
9783.93962050256,
4891.96981025128,
2445.98490512564,
1222.99245256282,
611.49622628141,
305.748113140705,
152.8740565703525,
76.43702828517625,
38.21851414258813,
19.109257071294063,
9.554628535647032,
4.777314267823516,
2.388657133911758,
1.194328566955879,
0.5971642834779395 };
比例尺:
double[] scale={
5.91657527591555E8,
2.958293554545656E8,
1.479146777272828E8,
7.39573388636414E7,
3.69786694318207E7,
1.848933471591035E7,
9244667.357955175,
4622333.678977588,
2311166.839488794,
1155583.419744397,
577791.7098721985,
288895.85493609926,
144447.92746804963,
72223.96373402482,
36111.98186701241,
18055.990933506204,
9027.995466753102,
4513.997733376551,
2256.998866688275 };