mapInfo = {
    "mapName": "LKTWCS",
    "rackCount": 4,
    "crnCount": 3,
    "stbCount": 13,
    "hpPosition": 1,
    "minBayNo": 1,
    "floors": 1,
    "racks": [{
        "type": "rack",
        "id": "rack2",
        "top": 146,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack3",
        "top": 194,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack4",
        "top": 215,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack1",
        "top": 125,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    },{
        "type": "rack",
        "id": "rack12",
        "top": 296,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack13",
        "top": 344,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack14",
        "top": 365,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack11",
        "top": 275,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    },{
        "type": "rack",
        "id": "rack22",
        "top": 446,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack23",
        "top": 494,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack24",
        "top": 515,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }, {
        "type": "rack",
        "id": "rack21",
        "top": 425,
        "left": 379,
        "width": 1072,
        "height": 22,
        "minBayNo": 2,
        "maxBayNo": 47
    }],
    "rackDescs": [{
        "type": "rackDescs",
        "id": "lb_desc1",
        "text": "#1",
        "top": 125,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc2",
        "text": "#2",
        "top": 146,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc3",
        "text": "#3",
        "top": 194,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc4",
        "text": "#4",
        "top": 215,
        "left": 348,
        "width": 33,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc14",
        "text": "#14",
        "top": 365,
        "left": 348,
        "width": 33,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc12",
        "text": "#12",
        "top": 296,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc13",
        "text": "#13",
        "top": 344,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc11",
        "text": "#11",
        "top": 275,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc24",
        "text": "#24",
        "top": 515,
        "left": 348,
        "width": 33,
        "height": 23
    },  {
        "type": "rackDescs",
        "id": "lb_desc22",
        "text": "#22",
        "top": 446,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc23",
        "text": "#23",
        "top": 494,
        "left": 348,
        "width": 30,
        "height": 23
    }, {
        "type": "rackDescs",
        "id": "lb_desc21",
        "text": "#21",
        "top": 425,
        "left": 348,
        "width": 30,
        "height": 23
    }],
    "crns": [{
        "type": "track",
        "id": "lb_track1",
        "text": "",
        "top": 184,
        "left": 340,
        "width": 1300,
        "height": 2
    }, {
        "type": "crane",
        "id": "crn-1",
        "text": "1",
        "top": 171,
        "left": 340,
        "width": 93,
        "height": 22
    },{
        "type": "track",
        "id": "lb_track2",
        "text": "",
        "top": 334,
        "left": 340,
        "width": 1300,
        "height": 2
    }, {
        "type": "crane",
        "id": "crn-2",
        "text": "2",
        "top": 321,
        "left": 340,
        "width": 93,
        "height": 22
    },{
        "type": "track",
        "id": "lb_track3",
        "text": "",
        "top": 484,
        "left": 340,
        "width": 1300,
        "height": 2
    }, {
        "type": "crane",
        "id": "crn-3",
        "text": "3",
        "top": 471,
        "left": 340,
        "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-103",
                "text": "103",
                "top": 148,
                "left": 1452,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-102",
                "text": "102",
                "top": 148,
                "left": 1542,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-101",
                "text": "101",
                "top": 148,
                "left": 1632,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-104",
                "text": "104",
                "top": 196,
                "left": 1452,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-105",
                "text": "105",
                "top": 196,
                "left": 1542,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-106",
                "text": "106",
                "top": 196,
                "left": 1632,
                "width": 89,
                "height": 20
            },{
                "type": "stn",
                "id": "site-203",
                "text": "203",
                "top": 298,
                "left": 1452,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-202",
                "text": "202",
                "top": 298,
                "left": 1542,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-201",
                "text": "201",
                "top": 298,
                "left": 1632,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-204",
                "text": "204",
                "top": 346,
                "left": 1452,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-205",
                "text": "205",
                "top": 346,
                "left": 1542,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-206",
                "text": "206",
                "top": 346,
                "left": 1632,
                "width": 89,
                "height": 20
            },{
                "type": "stn",
                "id": "site-303",
                "text": "303",
                "top": 448,
                "left": 1452,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-302",
                "text": "302",
                "top": 448,
                "left": 1542,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-301",
                "text": "301",
                "top": 448,
                "left": 1632,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-304",
                "text": "304",
                "top": 496,
                "left": 1452,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-305",
                "text": "305",
                "top": 496,
                "left": 1542,
                "width": 89,
                "height": 20
            }, {
                "type": "stn",
                "id": "site-306",
                "text": "306",
                "top": 496,
                "left": 1632,
                "width": 89,
                "height": 20
            }]
        }]
    }]
}