在Echarts中，我们很多时候是只需要自己想要的几个区域的地图，这时候提供的地图就不能满足我们的需求，需要我们自己来构建自己想要的地图。
1、首先我们申明一个json对象
var myjson={"type": "FeatureCollection",
"features":
[
{"type": "Feature","properties":{"id":"11","name":"北京","cp":[116.4551,40.2539],"childNum":19},"geometry":{"type":"Polygon","coordinates":[[[117.4219,40.21],[117.334,40.1221],[117.2461,40.0781],[116.8066,39.9902],[116.8945,39.8145],[116.8945,39.6826],[116.8066,39.5947],[116.543,39.5947],[116.3672,39.4629],[116.1914,39.5947],[115.752,39.5068],[115.4883,39.6387],[115.4004,39.9463],[115.9277,40.2539],[115.752,40.5615],[116.1035,40.6055],[116.1914,40.7813],[116.4551,40.7813],[116.3672,40.9131],[116.6309,41.0449],[116.9824,40.6934],[117.4219,40.6494],[117.2461,40.5176],[117.4219,40.21]]]}},
{"type": "Feature","properties":{"id":"12","name":"天津","cp":[117.4219,39.4189],"childNum":18},"geometry":{"type":"Polygon","coordinates":[[[116.8066,39.5947],[116.8945,39.6826],[117.1582,39.6387],[117.1582,39.8145],[117.2461,40.0781],[117.334,40.1221],[117.4219,40.21],[117.6855,40.0781],[117.6855,39.9902],[117.5098,39.9902],[117.5098,39.7705],[117.6855,39.5947],[117.9492,39.5947],[117.8613,39.4189],[118.0371,39.2432],[118.0371,39.1992],[117.8613,39.1113],[117.5977,38.6279],[117.2461,38.54],[116.7188,38.8037],[116.7188,38.9355],[116.8945,39.1113],[116.8066,39.5947]]]}},
{"type": "Feature","properties":{"id":"61","name":"陕西","cp":[109.5996,35.6396],"childNum":10},"geometry":{"type":"Polygon","coordinates":[[[105.4688,32.915],[105.9082,33.0029],[105.9961,33.1787],[105.7324,33.3984],[105.9961,33.6182],[106.5234,33.5303],[106.4355,33.9258],[106.6113,34.1455],[106.5234,34.2773],[106.6992,34.3213],[106.3477,34.585],[106.5234,34.7607],[106.6113,35.0684],[106.9629,35.0684],[107.2266,34.8926],[107.666,34.9365],[107.8418,35.0244],[107.7539,35.1123],[107.7539,35.2881],[108.5449,35.2881],[108.6328,35.5518],[108.5449,35.8594],[108.6328,35.9912],[108.7207,36.3428],[107.3145,36.9141],[107.3145,37.0898],[107.3145,37.6172],[107.666,37.8809],[108.1934,37.6172],[108.7207,37.7051],[108.8086,38.0127],[108.8965,37.9688],[109.0723,38.0127],[108.9844,38.3203],[109.9512,39.1553],[109.8633,39.2432],[110.2148,39.2871],[110.127,39.4629],[110.6543,39.2871],[111.0938,39.5947],[111.0938,39.375],[111.1816,39.2432],[110.918,38.7158],[110.8301,38.4961],[110.4785,38.1885],[110.4785,37.9688],[110.8301,37.6611],[110.3906,37.002],[110.4785,36.123],[110.5664,35.6396],[110.2148,34.8926],[110.2148,34.6729],[110.3906,34.585],[110.4785,34.2334],[110.6543,34.1455],[110.6543,33.8379],[111.0059,33.5303],[111.0059,33.2666],[110.7422,33.1348],[110.5664,33.2666],[110.3027,33.1787],[109.5996,33.2666],[109.4238,33.1348],[109.7754,33.0469],[109.7754,32.915],[110.127,32.7393],[110.127,32.6074],[109.6875,32.6074],[109.5117,32.4316],[109.5996,31.7285],[109.248,31.7285],[109.0723,31.9482],[108.5449,32.2119],[108.2813,32.2559],[108.0176,32.168],[107.4023,32.5195],[107.2266,32.4316],[107.1387,32.4756],[107.0508,32.6953],[106.3477,32.6514],[106.084,32.7393],[106.084,32.8711],[105.5566,32.7393],[105.4688,32.915]]]}},
{"type": "Feature","properties":{"id":"13","name":"河北","cp":[115.4004,37.9688],"childNum":11},"geometry":{"type":"MultiPolygon","coordinates":[[[[114.5215,39.5068],[114.3457,39.8584],[113.9941,39.9902],[114.5215,40.3418],[114.3457,40.3857],[114.2578,40.6055],[114.082,40.7373],[113.9063,41.1328],[113.9941,41.2207],[113.9063,41.4404],[114.2578,41.5723],[114.1699,41.792],[114.5215,42.1436],[114.873,42.0996],[114.9609,41.6162],[115.2246,41.5723],[115.9277,41.9238],[116.0156,41.792],[116.2793,42.0117],[116.8066,42.0117],[116.8945,42.4072],[117.334,42.4512],[117.5098,42.583],[117.7734,42.627],[118.0371,42.4072],[117.9492,42.2314],[118.125,42.0557],[118.3008,42.0996],[118.3008,41.792],[118.125,41.748],[118.3887,41.3086],[119.2676,41.3086],[118.8281,40.8252],[119.2676,40.5176],[119.5313,40.5615],[119.707,40.1221],[119.8828,39.9463],[119.5313,39.6826],[119.4434,39.4189],[118.916,39.0674],[118.4766,38.9355],[118.125,39.0234],[118.0371,39.1992],[118.0371,39.2432],[117.8613,39.4189],[117.9492,39.5947],[117.6855,39.5947],[117.5098,39.7705],[117.5098,39.9902],[117.6855,39.9902],[117.6855,40.0781],[117.4219,40.21],[117.2461,40.5176],[117.4219,40.6494],[116.9824,40.6934],[116.6309,41.0449],[116.3672,40.9131],[116.4551,40.7813],[116.1914,40.7813],[116.1035,40.6055],[115.752,40.5615],[115.9277,40.2539],[115.4004,39.9463],[115.4883,39.6387],[115.752,39.5068],[116.1914,39.5947],[116.3672,39.4629],[116.543,39.5947],[116.8066,39.5947],[116.8945,39.1113],[116.7188,38.9355],[116.7188,38.8037],[117.2461,38.54],[117.5977,38.6279],[117.9492,38.3203],[117.4219,37.8369],[116.8066,37.8369],[116.4551,37.4854],[116.2793,37.5732],[116.2793,37.3535],[116.0156,37.3535],[115.752,36.9141],[115.3125,36.5186],[115.4883,36.167],[115.3125,36.0791],[115.1367,36.2109],[114.9609,36.0791],[114.873,36.123],[113.7305,36.3428],[113.4668,36.6504],[113.7305,36.8701],[113.7305,37.1338],[114.1699,37.6611],[113.9941,37.7051],[113.8184,38.1445],[113.5547,38.2764],[113.5547,38.54],[113.8184,38.8037],[113.8184,38.9355],[113.9063,39.0234],[114.3457,39.0674],[114.5215,39.5068]]],[[[117.2461,40.0781],[117.1582,39.8145],[117.1582,39.6387],[116.8945,39.6826],[116.8945,39.8145],[116.8066,39.9902],[117.2461,40.0781]]]]}},
{"type": "Feature","properties":{"id":"14","name":"山西","cp":[112.4121,37.6611],"childNum":11},"geometry":{"type":"Polygon","coordinates":[[[110.918,38.7158],[111.1816,39.2432],[111.0938,39.375],[111.3574,39.4189],[111.4453,39.6387],[111.9727,39.5947],[112.3242,40.2539],[112.7637,40.166],[113.2031,40.3857],[113.5547,40.3418],[113.8184,40.5176],[114.082,40.5176],[114.082,40.7373],[114.2578,40.6055],[114.3457,40.3857],[114.5215,40.3418],[113.9941,39.9902],[114.3457,39.8584],[114.5215,39.5068],[114.3457,39.0674],[113.9063,39.0234],[113.8184,38.9355],[113.8184,38.8037],[113.5547,38.54],[113.5547,38.2764],[113.8184,38.1445],[113.9941,37.7051],[114.1699,37.6611],[113.7305,37.1338],[113.7305,36.8701],[113.4668,36.6504],[113.7305,36.3428],[113.6426,35.6836],[113.1152,35.332],[112.7637,35.2002],[112.0605,35.2881],[112.0605,35.0684],[111.7969,35.0684],[111.5332,34.8486],[111.1816,34.8047],[110.8301,34.6289],[110.3906,34.585],[110.2148,34.6729],[110.2148,34.8926],[110.5664,35.6396],[110.4785,36.123],[110.3906,37.002],[110.8301,37.6611],[110.4785,37.9688],[110.4785,38.1885],[110.8301,38.4961],[110.918,38.7158]]]}},
]
};
2、用上面申明的json对象注册地图
echarts.registerMap('mymap', myjson);
3、接下来使用地图的时候，我们就可以使用我们刚才注册的mymap地图了。
