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        "title": "底图图层",
        "id": 1,
        "field": "BaseMap",
        "checked": false,
        "spread": false,
        "disabled": true,
        "children": [
            {
                "title": "天地图影像",
                "checked": true,
                "id": 10,
                "field": "BaseMap"
            },
            {
                "title": "天地图电子",
                "checked": false,
                "id": 12,
                "field": "BaseMap"
            },
            {
                "title": "百度影像",
                "checked": false,
                "id": 14,
                "field": "BaseMap"
            },
            {
                "title": "百度电子",
                "checked": false,
                "id": 15,
                "field": "BaseMap"
            },
            {
                "title": "高德影像",
                "checked": false,
                "id": 16,
                "field": "BaseMap"
            },
            {
                "title": "高德电子",
                "checked": false,
                "id": 17,
                "field": "BaseMap"
            },
            {
                "title": "腾讯影像",
                "checked": false,
                "id": 18,
                "field": "BaseMap"
            },
            {
                "title": "腾讯电子",
                "checked": false,
                "id": 19,
                "field": "BaseMap"
            }
        ]
    },
    {
        "title": "地形图层",
        "id": 2,
        "field": "Terrain",
        "checked": false,
        "spread": false,
        "disabled": true,
        "children": [
            {
                "title": "无地形数据",
                "id": 20,
                "checked": false,
                "field": "Terrain"
            },
            {
                "title": "30米DEM",
                "id": 21,
                "checked": true,
                "field": "Terrain"
            }
        ]
    },
    {
        "title": "注记图层",
        "id": 3,
        "field": "Plotting",
        "checked": false,
        "spread": false,
        "disabled": true,
        "children": [
            {
                "title": "无注记图层",
                "id": 30,
                "checked": false,
                "field": "Plotting"
            },
            {
                "title": "天地图注记图层",
                "id": 31,
                "checked": true,
                "field": "Plotting"
            }
        ]
    },
    {
        "title": "绘制",
        "id": 4,
        "field": "Entity",
        "checked": false,
        "spread": true,
        "children": []
    },
    {
        "title": "二叠系",
        "id": 5,
        "field": "DDE",
        "checked": true,
        "spread": true,
        "children": [
            {  "title": "重庆满月乡 PP1",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":108.57984,
                "lat":31.56391,
                "altitude":3000
            },
            {  "title": "旺苍金龙镇 PP2",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":106.3067,
                "lat":32.38106,
                "altitude":2000
            },
            {
                "title": "剑阁猫儿塘 PP3",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":105.41457,
                "lat":32.27508,
                "altitude":2000,
                "children": [
                    {
                        "title": "区域地质概况",
                        "id": 41,
                        "checked": true,
                        "field": "DDE",
                        "lon":105.41457,
                        "lat":32.27508,
                        "altitude":2000
                    },
                    {
                        "title": "路线剖面和点位",
                        "id": 42,
                        "checked": true,
                        "field": "DDE",
                        "spread": true,
                        "lon":105.41457,
                        "lat":32.27508,
                        "altitude":2000,
                        "children": [
                            {
                                "title": "大隆组 P3d",
                                "id": 421,
                                "checked": true,
                                "field": "DDE",
                                "lon":105.41783,
                                "lat":32.27347,
                                "altitude":600
                            },
                            {
                                "title": "吴家坪组 P3w",
                                "id": 422,
                                "checked": true,
                                "field": "DDE",
                                "lon":105.41686,
                                "lat":32.27365,
                                "altitude":600
                            },
                            {
                                "title": "茅口组 P2m",
                                "id": 423,
                                "checked": true,
                                "field": "DDE",
                                "lon":105.4147,
                                "lat":32.27442,
                                "altitude":600
                            },
                            {
                                "title": "栖霞组 P2q",
                                "id": 424,
                                "checked": true,
                                "field": "DDE",
                                "lon":105.41378,
                                "lat":32.27504,
                                "altitude":600
                            },
                            {
                                "title": "梁山组 P1L",
                                "id": 424,
                                "checked": true,
                                "field": "DDE",
                                "lon":105.41376,
                                "lat":32.27504,
                                "altitude":600
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                        ]
                    },
                    {
                        "title": "剖面解释",
                        "id": 42,
                        "checked": true,
                        "field": "DDE",
                        "lon":105.41457,
                        "lat":32.27508,
                        "altitude":2000
                    }
                ]
            },
            {
                "title": "天全李子坪 PP4",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":102.6667,
                "lat":30.0222,
                "altitude":3000
            },
            {
                "title": "尼让",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":86.74955,
                "lat":28.673431,
                "altitude":3000
            },
            {
                "title": "石艾山",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":119.9594421,
                "lat":36.11600494,
                "altitude":3000
            },
            {
                "title": "西石艾山",
                "id": 6,
                "field": "DDE",
                "checked": true,
                "spread": true,
                "lon":119.9052734,
                "lat":36.11427307,
                "altitude":3000
            }
        ]
    }
]