mapInfo = {
    "mapName": "YKWCS",
    "rackCount": 4,
    "crnCount": 3,
    "stbCount": 13,
    "hpPosition": 0,
    "minBayNo": 1,
    "floors": 1,
    "racks": [ {
        "type": "rack",
        "id": "rack12",
        "top": 280,
        "left": 529,
        "width": 1280,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 56
    }, {
        "type": "rack",
        "id": "rack11",
        "top": 301,
        "left": 529,
        "width": 1280,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 56
    }, {
        "type": "rack",
        "id": "rack10",
        "top": 349,
        "left": 529,
        "width": 1280,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 56
    }, {
        "type": "rack",
        "id": "rack9",
        "top": 370,
        "left": 529,
        "width": 1280,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 56
    }],
    "rackDescs": [{
        "type": "rackDescs",
        "id": "lb_desc1",
        "text": "#16",
        "top": 167,
        "left": 1810,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc2",
        "text": "#1",
        "top": 596,
        "left": 1810,
        "width": 30,
        "height": 23
    }],
    "crns": [{
        "type": "track",
        "id": "lb_track3",
        "text": "",
        "top": 338,
        "left": 490,
        "width": 1300,
        "height": 2
    }, {
        "type": "crane",
        "id": "crn-3",
        "text": "3",
        "top": 325,
        "left": 490,
        "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": "1库",
            "top": 4,
            "left": 22,
            "width": 1819,
            "height": 668,
            "stns": [{
                "type": "stn",
                "id": "site-144",
                "text": "144",
                "top": 239,
                "left": 468,
                "width": 60,
                "height": 19
            }],
            "barcode":[
                {
                    "type": "barcode",
                    "id": "barcode-1",
                    "text": "",
                    "top": 749,
                    "left": 470,
                    "width": 80,
                    "height": 20
                },
                {
                    "type": "barcode",
                    "id": "barcode-2",
                    "text": "",
                    "top": 684,
                    "left": 470,
                    "width": 80,
                    "height": 20
                } ,
                {
                    "type": "barcode",
                    "id": "barcode-3",
                    "text": "",
                    "top": 64.5,
                    "left": 470,
                    "width": 80,
                    "height": 20
                }
                ,
                {
                    "type": "barcode",
                    "id": "barcode-4",
                    "text": "",
                    "top": 749,
                    "left": 560,
                    "width": 150,
                    "height": 20
                }
                ,
                {
                    "type": "barcode",
                    "id": "barcode-5",
                    "text": "",
                    "top": 684,
                    "left": 560,
                    "width": 150,
                    "height": 20
                }
            ]
        }]
    }]
}