在线地图服务 基于OGC标准的地图服务 OGC 1.0.0 none none 国家基础地理信息中心 http://www.tianditu.gov.cn Mr Wang Software Engineer 010-63881203 010-63881203 北京市海淀区莲花池西路28号 北京市 北京市 中国 100830 tdt@ngcc.cn KVP KVP 1 1 1 -180.0 -90.0 180.0 90.0 -180.0 -90.0 180.0 90.0 tiles EPSG:4326_0 EPSG:4326_0 urn:ogc:def:crs:EPSG::4326 0 279541132.0143589 90.0 -180.0 256 256 2 1 1 139770566.00717944 90.0 -180.0 256 256 4 2 2 69885283.00358972 90.0 -180.0 256 256 8 4 3 34942641.50179486 90.0 -180.0 256 256 16 8 4 17471320.75089743 90.0 -180.0 256 256 32 16 5 8735660.375448715 90.0 -180.0 256 256 64 32 6 4367830.1877243575 90.0 -180.0 256 256 128 64 7 2183915.0938621787 90.0 -180.0 256 256 256 128 8 1091957.5469310894 90.0 -180.0 256 256 512 256 9 545978.7734655447 90.0 -180.0 256 256 1024 512 10 272989.38673277234 90.0 -180.0 256 256 2048 1024 11 136494.69336638617 90.0 -180.0 256 256 4096 2048 12 68247.34668319309 90.0 -180.0 256 256 8192 4096 13 34123.67334159654 90.0 -180.0 256 256 16384 8192 14 17061.83667079827 90.0 -180.0 256 256 32768 16384 15 8530.918335399136 90.0 -180.0 256 256 65536 32768 16 4265.459167699568 90.0 -180.0 256 256 131072 65536 17 2132.729583849784 90.0 -180.0 256 256 262144 131072 18 1066.364791924892 90.0 -180.0 256 256 524288 262144