mapInfo = {
    "mapName": "NBJFWCS",
    "rackCount": 18,
    "crnCount": 7,
    "stbCount": 77,
    "hpPosition": 0,
    "minBayNo": 2,
    "floors": 1,
    "racks": [
        {
            "type": "rack",
            "id": "rack1",
            "top": 324,
            "left": 208,
            "width": 1600,
            "height": 26,
            "minBayNo": 2,
            "maxBayNo": 56
        },
        {
            "type": "rack",
            "id": "rack2",
            "top": 386,
            "left": 208,
            "width": 1600,
            "height": 26,
            "minBayNo": 2,
            "maxBayNo": 56
        },
    ],
    "rackDescs": [
        {
            "type": "rackDescs",
            "id": "lb_desc1",
            "text": "#1",
            "top": 324,
            "left": 1794,
            "width": 30,
            "height": 23
        },
        {
            "type": "rackDescs",
            "id": "lb_desc2",
            "text": "#2",
            "top": 388,
            "left": 1794,
            "width": 30,
            "height": 23
        },
    ],
    "crns": [
        {
            "type": "track",
            "id": "lb_track1",
            "text": "",
            "top": 370,
            "left": 154,
            "width": 1700,
            "height": 2
        },
        {
            "type": "crane",
            "id": "crn-1",
            "text": "1",
            "top": 358,
            "left": 805,
            "width": 93,
            "height": 22
        },

    ],
    "areas": [
        {
            "type": "Control_floor",
            "id": "tabControl_floor1",
            "text": "楼层",
            "top": 68,
            "left": 80,
            "width": 1845,
            "height": 676,
            "floors": [
                {
                    "type": "floor",
                    "id": "page_floor1",
                    "text": "1F",
                    "top": 4,
                    "left": 22,
                    "width": 1819,
                    "height": 668,
                    "stns": [
                        {
                            "type": "stn",
                            "id": "site-100",
                            "text": "100",
                            "top": 386,
                            "left": 1067,
                            "width": 78,
                            "height": 24
                        },
                        {
                            "type": "stn",
                            "id": "site-101",
                            "text": "101",
                            "top": 386,
                            "left": 1147,
                            "width": 78,
                            "height": 24
                        },
                        {
                            "type": "stn",
                            "id": "site-102",
                            "text": "102",
                            "top": 412,
                            "left": 1067,
                            "width": 78,
                            "height": 24
                        },
                        {
                            "type": "stn",
                            "id": "site-103",
                            "text": "103",
                            "top": 412,
                            "left": 1147,
                            "width": 78,
                            "height": 24
                        },
                        {
                            "type": "stn",
                            "id": "site-104",
                            "text": "104",
                            "top": 438,
                            "left": 1067,
                            "width": 78,
                            "height": 24
                        },
                        {
                            "type": "stn",
                            "id": "site-105",
                            "text": "105",
                            "top": 438,
                            "left": 1147,
                            "width": 78,
                            "height": 24
                        },
                    ]
                },

            ]
        }
    ]
}