Arcgis for js加载百度地图

概述：

在前面的文章里提到了Arcgis for js加载天地图，在本节，继续讲解如何在Arcgis for js中加载百度地图。

效果：

地图

影像-无标注

影像-有标注

实现：

第一，在此感谢http://www.cnblogs.com/chenyuming507950417/p/3343729.html这篇文章的主人，给了我很大的启发与帮助，因为一直在找相关的参数，都不对，只有这个参数是没有问题的。

第二，百度地图可调用的有地图切片，影像切片，以及道路等POI切片，我将之用TiledMapServiceLayer做了扩展，成了BDAnoLayer，BDVecLayer，BDimgLayer三个图层，其代码如下：

BDAnoLayer.js

define(["dojo/_base/declare",
    "esri/layers/tiled"],
    function (declare) {
        return declare(esri.layers.TiledMapServiceLayer, {
            constructor: function () {
                this.spatialReference = new esri.SpatialReference({ wkid: 102100 });
                this.initialExtent = (this.fullExtent = new esri.geometry.Extent(-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892, this.spatialReference));
                this.scale = [591657527.591555,295828763.795777,147914381.897889,73957190.948944,36978595.474472,18489297.737236,9244648.868618,
                    4622324.434309,2311162.217155,1155581.108577,577790.554289,288895.277144,144447.638572,72223.819286,
                    36111.9096437,18055.9548224,9027.977411,4513.988705,2256.994353,1128.497176];
                this.resolution = [156543.033928,78271.5169639999,39135.7584820001,19567.8792409999,9783.93962049996,4891.96981024998,2445.98490512499,
                    1222.99245256249,611.49622628138,305.748113140558,152.874056570411,76.4370282850732,38.2185141425366,19.1092570712683,9.55462853563415,
                    4.77731426794937,2.38865713397468,1.19432856685505,0.597164283559817,0.298582141647617];
                this.tileInfo = new esri.layers.TileInfo({
                    "rows": 256,
                    "cols": 256,
                    "compressionQuality": 90,
                    "origin": {
                        "x": -20037508.3427892,
                        "y": 20037508.3427892
                    },
                    "spatialReference": this.spatialReference,
                    "lods": [{ "level": 0, "resolution": this.resolution[0], "scale": this.scale[0] },
                        { "level": 1, "resolution": this.resolution[1], "scale": this.scale[1] },
                        { "level": 2, "resolution": this.resolution[2], "scale": this.scale[2] },
                        { "level": 3, "resolution": this.resolution[3], "scale": this.scale[3] },
                        { "level": 4, "resolution": this.resolution[4], "scale": this.scale[4] },
                        { "level": 5, "resolution": this.resolution[5], "scale": this.scale[5] },
                        { "level": 6, "resolution": this.resolution[6], "scale": this.scale[6] },
                        { "level": 7, "resolution": this.resolution[7], "scale": this.scale[7] },
                        { "level": 8, "resolution": this.resolution[8], "scale": this.scale[8] },
                        { "level": 9, "resolution": this.resolution[9], "scale": this.scale[9] },
                        { "level": 10, "resolution": this.resolution[10], "scale": this.scale[10] },
                        { "level": 11, "resolution": this.resolution[11], "scale": this.scale[11] },
                        { "level": 12, "resolution": this.resolution[12], "scale": this.scale[12] },
                        { "level": 13, "resolution": this.resolution[13], "scale": this.scale[13] },
                        { "level": 14, "resolution": this.resolution[14], "scale": this.scale[14] },
                        { "level": 15, "resolution": this.resolution[15], "scale": this.scale[15] },
                        { "level": 16, "resolution": this.resolution[16], "scale": this.scale[16] },
                        { "level": 17, "resolution": this.resolution[17], "scale": this.scale[17] },
                        { "level": 18, "resolution": this.resolution[18], "scale": this.scale[18] },
                        { "level": 19, "resolution": this.resolution[19], "scale": this.scale[19] }
                    ]
                });
                this.loaded = true;
                this.onLoad(this);
            },
            getTileUrl: function (level, row, col) {
                var zoom = level - 1;
                var offsetX = parseInt(Math.pow(2, zoom));
                var offsetY = offsetX - 1;
                var numX = col - offsetX, numY = (-row) + offsetY ;
                var num = (col + row) % 8 + 1;
                return "http://online" + num + ".map.bdimg.com/tile/?qt=tile&x="+numX+"&y="+numY+"&z="+level+"&styles=sl&udt=20141015";
            }
        });
    });

BDVecLayer.js

define(["dojo/_base/declare",
    "esri/layers/tiled"],
    function (declare) {
        return declare(esri.layers.TiledMapServiceLayer, {
            constructor: function () {
                this.spatialReference = new esri.SpatialReference({ wkid: 102100 });
                this.initialExtent = (this.fullExtent = new esri.geometry.Extent(-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892, this.spatialReference));
                this.scale = [591657527.591555,295828763.795777,147914381.897889,73957190.948944,36978595.474472,18489297.737236,9244648.868618,
                    4622324.434309,2311162.217155,1155581.108577,577790.554289,288895.277144,144447.638572,72223.819286,
                    36111.9096437,18055.9548224,9027.977411,4513.988705,2256.994353,1128.497176];
                this.resolution = [156543.033928,78271.5169639999,39135.7584820001,19567.8792409999,9783.93962049996,4891.96981024998,2445.98490512499,
                    1222.99245256249,611.49622628138,305.748113140558,152.874056570411,76.4370282850732,38.2185141425366,19.1092570712683,9.55462853563415,
                    4.77731426794937,2.38865713397468,1.19432856685505,0.597164283559817,0.298582141647617];
                this.tileInfo = new esri.layers.TileInfo({
                    "rows": 256,
                    "cols": 256,
                    "compressionQuality": 90,
                    "origin": {
                        "x": -20037508.3427892,
                        "y": 20037508.3427892
                    },
                    "spatialReference": this.spatialReference,
                    "lods": [{ "level": 0, "resolution": this.resolution[0], "scale": this.scale[0] },
                        { "level": 1, "resolution": this.resolution[1], "scale": this.scale[1] },
                        { "level": 2, "resolution": this.resolution[2], "scale": this.scale[2] },
                        { "level": 3, "resolution": this.resolution[3], "scale": this.scale[3] },
                        { "level": 4, "resolution": this.resolution[4], "scale": this.scale[4] },
                        { "level": 5, "resolution": this.resolution[5], "scale": this.scale[5] },
                        { "level": 6, "resolution": this.resolution[6], "scale": this.scale[6] },
                        { "level": 7, "resolution": this.resolution[7], "scale": this.scale[7] },
                        { "level": 8, "resolution": this.resolution[8], "scale": this.scale[8] },
                        { "level": 9, "resolution": this.resolution[9], "scale": this.scale[9] },
                        { "level": 10, "resolution": this.resolution[10], "scale": this.scale[10] },
                        { "level": 11, "resolution": this.resolution[11], "scale": this.scale[11] },
                        { "level": 12, "resolution": this.resolution[12], "scale": this.scale[12] },
                        { "level": 13, "resolution": this.resolution[13], "scale": this.scale[13] },
                        { "level": 14, "resolution": this.resolution[14], "scale": this.scale[14] },
                        { "level": 15, "resolution": this.resolution[15], "scale": this.scale[15] },
                        { "level": 16, "resolution": this.resolution[16], "scale": this.scale[16] },
                        { "level": 17, "resolution": this.resolution[17], "scale": this.scale[17] },
                        { "level": 18, "resolution": this.resolution[18], "scale": this.scale[18] },
                        { "level": 19, "resolution": this.resolution[19], "scale": this.scale[19] }
                    ]
                });
                this.loaded = true;
                this.onLoad(this);
            },
            getTileUrl: function (level, row, col) {
                var zoom = level - 1;
                var offsetX = parseInt(Math.pow(2, zoom));
                var offsetY = offsetX - 1;
                var numX = col - offsetX, numY = (-row) + offsetY ;
                var num = (col + row) % 8 + 1;
                return "http://online" + num + ".map.bdimg.com/tile/?qt=tile&x="+numX+"&y="+numY+"&z="+level+"&styles=pl&scaler=1&udt=20141103";
            }
        });
    });

BDimgLayer.js

define(["dojo/_base/declare",
    "esri/layers/tiled"],
    function (declare) {
        return declare(esri.layers.TiledMapServiceLayer, {
            constructor: function () {
                this.spatialReference = new esri.SpatialReference({ wkid: 102100 });
                this.initialExtent = (this.fullExtent = new esri.geometry.Extent(-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892, this.spatialReference));
                this.scale = [591657527.591555,295828763.795777,147914381.897889,73957190.948944,36978595.474472,18489297.737236,9244648.868618,
                    4622324.434309,2311162.217155,1155581.108577,577790.554289,288895.277144,144447.638572,72223.819286,
                    36111.9096437,18055.9548224,9027.977411,4513.988705,2256.994353,1128.497176];
                this.resolution = [156543.033928,78271.5169639999,39135.7584820001,19567.8792409999,9783.93962049996,4891.96981024998,2445.98490512499,
                    1222.99245256249,611.49622628138,305.748113140558,152.874056570411,76.4370282850732,38.2185141425366,19.1092570712683,9.55462853563415,
                    4.77731426794937,2.38865713397468,1.19432856685505,0.597164283559817,0.298582141647617];
                this.tileInfo = new esri.layers.TileInfo({
                    "rows": 256,
                    "cols": 256,
                    "compressionQuality": 90,
                    "origin": {
                        "x": -20037508.3427892,
                        "y": 20037508.3427892
                    },
                    "spatialReference": this.spatialReference,
                    "lods": [{ "level": 0, "resolution": this.resolution[0], "scale": this.scale[0] },
                        { "level": 1, "resolution": this.resolution[1], "scale": this.scale[1] },
                        { "level": 2, "resolution": this.resolution[2], "scale": this.scale[2] },
                        { "level": 3, "resolution": this.resolution[3], "scale": this.scale[3] },
                        { "level": 4, "resolution": this.resolution[4], "scale": this.scale[4] },
                        { "level": 5, "resolution": this.resolution[5], "scale": this.scale[5] },
                        { "level": 6, "resolution": this.resolution[6], "scale": this.scale[6] },
                        { "level": 7, "resolution": this.resolution[7], "scale": this.scale[7] },
                        { "level": 8, "resolution": this.resolution[8], "scale": this.scale[8] },
                        { "level": 9, "resolution": this.resolution[9], "scale": this.scale[9] },
                        { "level": 10, "resolution": this.resolution[10], "scale": this.scale[10] },
                        { "level": 11, "resolution": this.resolution[11], "scale": this.scale[11] },
                        { "level": 12, "resolution": this.resolution[12], "scale": this.scale[12] },
                        { "level": 13, "resolution": this.resolution[13], "scale": this.scale[13] },
                        { "level": 14, "resolution": this.resolution[14], "scale": this.scale[14] },
                        { "level": 15, "resolution": this.resolution[15], "scale": this.scale[15] },
                        { "level": 16, "resolution": this.resolution[16], "scale": this.scale[16] },
                        { "level": 17, "resolution": this.resolution[17], "scale": this.scale[17] },
                        { "level": 18, "resolution": this.resolution[18], "scale": this.scale[18] },
                        { "level": 19, "resolution": this.resolution[19], "scale": this.scale[19] }
                    ]
                });
                this.loaded = true;
                this.onLoad(this);
            },
            getTileUrl: function (level, row, col) {
                var zoom = level - 1;
                var offsetX = parseInt(Math.pow(2, zoom));
                var offsetY = offsetX - 1;
                var numX = col - offsetX, numY = (-row) + offsetY ;
                var num = (col + row) % 8 + 1;
                return "http://shangetu" + num + ".map.bdimg.com/it/u=x="+numX+";y="+numY+";z="+level+";v=009;type=sate&fm=46&udt=20141015";
            }
        });
    });

从上面的getTileUrl可以看到，三者返回的url的地址是有区别的，在上述那边博文里面提到的url已经失效，为了得到最新的地址，我做了如下工作：

1、用百度地图JS API调用并显示百度地图，代码如下：

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body, html,#allmap { 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
    </style>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=你的秘钥"></script>
    <title>地图展示</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">
    // 百度地图API功能
    var map = new BMap.Map("allmap");    // 创建Map实例
    map.centerAndZoom(new BMap.Point(116.404, 39.915), 5);  // 初始化地图,设置中心点坐标和地图级别
    map.addControl(new BMap.MapTypeControl());   //添加地图类型控件
    map.setCurrentCity("北京");          // 设置地图显示的城市 此项是必须设置的
    map.enableScrollWheelZoom(true);     //开启鼠标滚轮缩放
</script>

2、F12打开Chrom调试——NetWork——左边找一张切片，右边切换至Preview面板

地图url

影像url

poi url

如此，URL即为切片的Url，其中online后面的数字2即为代码中的num，x为代码中的numX，y为numY，z为缩放级别。

第三，调用显示
调用显示比较简单，代码如下：

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Baidu Map</title>
    <link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.9/3.9/js/dojo/dijit/themes/tundra/tundra.css">
    <link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.9/3.9/js/esri/css/esri.css">
    <style>
        html, body, #map {
            height: 100%;
            margin: 0;
            padding: 0;
        }
        .base-map-ano{
            position: absolute;
            right: 0pt;
            top:18pt;
            background: #e6edf1;
            border: #96aed1 1px solid;
            padding: 4px 5px;
            padding-left: 0px;
            padding-top: 0px;
            display: none;
            font-weight: normal;
        }
        .base-map{
            position: absolute;
            right: 15pt;
            top:15pt;
            background: #f0f0f0;
            border: #96aed1 1px solid;
             auto;
            height: auto;
            z-index: 99;
            font:normal 11px "宋体",Arial;
            color:#868686;
        }
        .base-map-switch{
            padding: 4px 8px;
            float: left;
        }
        .base-map-switch-active{
            background:#e6edf1;
            font-weight: bold;
            color: #4d4d4d;
        }
        .base-map-switch:hover{
            cursor: pointer;
        }
        .base-map-switch-center{
            border: 1px #96aed1 solid;
            border-top:none;
            border-bottom:none;
        }
    </style>
    <script type="text/javascript">
        dojoConfig = {
            parseOnLoad: true,
            packages: [{
                name: 'bdlib',
                location: this.location.pathname.replace(//[^/]+$/, "")+"/js/bdlib"
            }]
        };
    </script>
    <script src="http://localhost/arcgis_js_api/library/3.9/3.9/init.js"></script>
    <script src="js/jquery-1.8.3.js"></script>
    <script>
        var map,showMap,anoCtrl;
        require(["esri/map",
            "bdlib/BDVecLayer",
            "bdlib/BDImgLayer",
            "bdlib/BDAnoLayer",
            "esri/layers/FeatureLayer",
            "esri/geometry/Point",
            "esri/SpatialReference",
            "dojo/domReady!"],
                function (Map,
                          BDVecLayer,
                          BDImgLayer,
                          BDAnoLayer,
                          FeatureLayer,
                          Point,
                          SpatialReference
                        ){
                    map = new Map("map", {
                        logo: false
                    });
                    var vecMap = new BDVecLayer();
                    var imgMap = new BDImgLayer();
                    var anoMap = new BDAnoLayer();
                    map.addLayer(vecMap);
                    map.addLayers([imgMap,anoMap]);
                    imgMap.hide(),anoMap.hide();

                    var pt = new Point(7038512.810510807, 2629489.7975553474, new SpatialReference({ wkid: 102100 }));
                    map.centerAndZoom(pt, 5);

                    showMap = function(layer){
                        //设置按钮样式
                        var baseMap = ["vec","img"];
                        for(var i= 0, dl=baseMap.length;i<dl;i++){
                            $("#"+baseMap[i]).removeClass("base-map-switch-active");
                        }
                        $("#"+layer).addClass("base-map-switch-active");
                        //设置显示地图
                        switch(layer){
                            case "img":{//影像
                                vecMap.hide();
                                imgMap.show();
                                $("#ano").show();
                                break;
                            }
                            default :{//地图
                                vecMap.show();
                                imgMap.hide(),anoMap.hide();
                                $("#ano").hide();
                                $("#chkAno").attr("checked",false);
                                break;
                            }
                        }
                    };
                    anoCtrl = function(){
                        if($("#chkAno").attr("checked")){
                            anoMap.show();
                        }
                        else{
                            anoMap.hide();
                        }
                    }
                });
    </script>
</head>
<body>
<div id="map">
    <div class="base-map">
        <div id="vec" class="base-map-switch base-map-switch-active" onclick="showMap('vec')">地图</div>
        <div id="img" class="base-map-switch base-map-switch-center"  onclick="showMap('img')">影像
            <div id="ano" class="base-map-ano">
                <input id="chkAno" type="checkbox" name="chkAno" value="chkAno" onchange="anoCtrl()"/>标注
            </div>
        </div>
    </div>
</div>
</body>
</html>