map3d

map3d中可以配置下面参数进行地图初始化，支持 Cesium.Viewer 类中所有 options 参数,包括地图的控件、视角、地图图层等参数。另外可以配置地形、底图和图层，底图和图层的参数基本一致，底图位于basemaps，图层位于operationallayers，底图始终位于图层下方（即底图会被图层覆盖）。

主要参数

json节点	说明	示例
center	地球默认视域，配置中心点和角度	{"x":117.2,"y":31.6,"z":580,"heading":0,"pitch":0,"roll":6}
minzoom	地球可以放大的最小比例，单位米	1
maxzoom	地球可以缩小的最大比例，单位米	20000000
baseColor	地球默认背景颜色	"#546a53"
style	是否开启atmosphere大气渲染，lighting光照渲染，fog雾化效果；testTerrain深度检测；globe地球显示	{"atmosphere":true,"lighting":false,"fog":false,"testTerrain":false}
terrain	地形配置，visible标识默认是否开启	详细见地形配置
crs	地图坐标系，默认3857	可选值有：4326、3857、gcj
basemaps	数组，地球基础底图配置	详细见底图配置
operationallayers	数组，可加载的模型数据配置	详细见图层配置
其他	支持Cesium.Viewer中options参数	"homeButton":false

配置示例

	"map3d": {
		"web":false,
		"homeButton": false,
		"isAnimation": true,
		"sceneModePicker": false,
		"navigationHelpButton": false,
		"infoBox": false,
		"vrButton": false,
		"geocoder": false,
		"geocoderConfig": { "citycode": "" },
		"center": { 
			"y": 39.13503, 
			"x": 117.233398, 
			"z": 5000, 
			"heading": 0, 
			"pitch": -60, 
			"roll": 0 
		},
		"mapZoom": {  },
		"mobileZoom": 1000,
		"minzoom": 1,
		"maxzoom": 30000000,
		"copyright": true,
		"style": {
			"atmosphere": true,
			"lighting": false,
			"fog": false,
			"testTerrain": false
		},
		"clickFields": ["id", "名称"],
		"addClouds": {
			"show": false,
			"position": [117.205936, 39.099409, 50000],
			"style": {
				"scaleX": 250000,
				"scaleY": 120000,
				"brightness": 1
			}
		},
		"controls": [{
				"type": "location",
				"coordinate": "wgs",
				"style": {
					"left": "0",
					"right": "0",
					"bottom": "0"
				}
			},
			{
				"type": "mousezoom"
			},
			{
				"type": "navigation",
				"style": {
					"top": "120px",
					"right": "5px"
				},
				"enableCompass": true,
				"enableZoomControls": false,
				"enableDistanceLegend": false,
				"enableCompassOuterRing": true
			}
		],
		"terrain": {
			"url": "",
			"visible": false
		},
		"basemaps": [
		...
		],
		"operationallayers": [
			...
		]
	}