mapInfo = {
    "mapName": "STWCS",
    "rackCount": 16,
    "crnCount": 4,
    "stbCount": 16,
    "hpPosition": 0,
    "minBayNo": 2,
    "floors": 1,
    "racks": [{
        "type": "rack",
        "id": "rack1",
        "top": 661,
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }, {
        "type": "rack",
        "id": "rack2",
        "top": 639,//-48  ==>3
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }, {
        "type": "rack",
        "id": "rack3",
        "top": 591,//-22  ==>4  //67,//92  103  //591  +25 ==>//616  +11 ==>//627
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }, {
        "type": "rack",
        "id": "rack4",
        "top": 569,
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    },{
        "type": "rack",
        "id": "rack5",
        "top": 547,
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }, {
        "type": "rack",
        "id": "rack6",
        "top": 525,
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }, {
        "type": "rack",
        "id": "rack7",
        "top": 477,
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }, {
        "type": "rack",
        "id": "rack8",
        "top": 455,
        "left": 350,
        "width": 917,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 29
    }],
    "rackDescs": [{
        "type": "rackDescs",
        "id": "lb_desc16",
        "text": "#1",
        "top": 661,
        "left": 270,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc1",
        "text": "#4",
        "top": 569,
        "left": 270,
        "width": 41,
        "height": 23
    }],
    "crns": [{
        "type": "crane",
        "id": "crn-1",
        "text": "1",
        "top": 616,
        "left": 439,
        "width": 93,
        "height": 22
    }, {
        "type": "track",
        "id": "lb_track1",
        "text": "",
        "top": 627,
        "left": 273,
        "width": 1042,
        "height": 2
    },{
        "type": "crane",
        "id": "crn-2",
        "text": "2",
        "top": 502,
        "left": 439,
        "width": 93,
        "height": 22
    }, {
        "type": "track",
        "id": "lb_track2",
        "text": "",
        "top": 513,
        "left": 273,
        "width": 1042,
        "height": 2
    }],
    "areas": [{
        "type": "Control_floor",
        "id": "tabControl_floor1",
        "text": "楼层",
        "top": 68,
        "left": 80,
        "width": 1400,
        "height": 680,
        "floors": [{
            "type": "floor",
            "id": "page_floor1",
            "text": "小料箱",
            "top": 4,
            "left": 22,
            "width": 1374,
            "height": 672,
            "stns": [{
                "type": "stn",
                "id": "site-100",
                "text": "100",
                "top": 641.5,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-101",
                "text": "101",
                "top": 664,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-102",
                "text": "102",
                "top": 664,
                "left": 1318,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-103",
                "text": "103",
                "top": 629,
                "left": 1369,
                "width": 29,
                "height": 55
            },{
                "type": "stn",
                "id": "site-154",
                "text": "154",
                "top": 572,
                "left": 1369,
                "width": 29,
                "height": 55
            },{
                "type": "stn",
                "id": "site-104",
                "text": "104",
                "top": 624,
                "left": 1400,
                "width": 29,
                "height": 60
            },{
                "type": "stn",
                "id": "site-143",
                "text": "143",
                "top": 458,
                "left": 1318,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-144",
                "text": "144",
                "top": 458,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-145",
                "text": "145",
                "top": 480,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-148",
                "text": "148",
                "top": 528,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-149",
                "text": "149",
                "top": 550,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-150",
                "text": "150",
                "top": 550,
                "left": 1318,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-151",
                "text": "151",
                "top": 572,
                "left": 1318,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-152",
                "text": "152",
                "top": 572,
                "left": 1267,
                "width": 49,
                "height": 20
            },{
                "type": "stn",
                "id": "site-153",
                "text": "153",
                "top": 593,
                "left": 1267,
                "width": 49,
                "height": 20
            }]
        }, {
            "type": "floor",
            "id": "page_floor2",
            "text": "大料箱",
            "top": 4,
            "left": 22,
            "width": 1374,
            "height": 672,
            "stns": []
        }]
    }]
}