Cf42abdae770b2eb07a8ab6afe866ca6
openlayers6地图切换展示(附源码下载)

前言

之前写过一篇openlayers4版本的地图切换效果,但是由于是封装一层 js代码写的,很多初学者看起来比较有点吃力,所以本篇文章重新写一篇地图切换效果,直接基于最新版本openlayers6写的,纯粹html + js + css形式,没有任何封装。

内容概览

1.基于openlayers6实现地图切换展示效果
2.源代码demo下载

效果图如下:

大概实现思路如下:地图初始化配置加载各种在线地图,比如天地图,arcgis地图,谷歌地图,高德地图,百度地图,OSM地图等等,默认图层只显示一个地图,其他在线地图默认隐藏不可见状态;js自定义一个底图切换的控件,底图切换时候,动态设置图层的隐藏以及可见性,达到底图切换目的。

  • 部分核心代码,完整的见源码demo下载
    ```
    var satelliteLayer = new ol.layer.Tile({ //天地图卫星图
    visible: true,
    source: new ol.source.XYZ({
    url: 'http://t{0-7}.tianditu.com/DataServer?T=img_w&x={x}&y={y}&l={z}&tk=7786923a385369346d56b966bb6ad62f',
    crossOrigin:"anonymous"
    })
    });

    var satelliteLabelLayer = new ol.layer.Tile({
    visible: false,
    source: new ol.source.XYZ({ //天地图卫星图注记
    url: 'http://t{0-7}.tianditu.com/DataServer?T=cia_w&x={x}&y={y}&l={z}&tk=7786923a385369346d56b966bb6ad62f',
    crossOrigin:"anonymous"
    })
    });

    var streetLayer = new ol.layer.Tile({ //天地图街道图
    visible: false,
    source: new ol.source.XYZ({
    url: 'http://t{0-7}.tianditu.com/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=7786923a385369346d56b966bb6ad62f',
    crossOrigin:"anonymous"
    })
    });

    var streetLabelLayer = new ol.layer.Tile({
    visible: false,
    source: new ol.source.XYZ({ //天地图街道图注记
    url: 'http://t{0-7}.tianditu.com/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=7786923a385369346d56b966bb6ad62f',
    crossOrigin:"anonymous"
    })
    });

    var terLayer = new ol.layer.Tile({
    visible: false,
    source: new ol.source.XYZ({ //天地图地形图
    url: 'http://t{0-7}.tianditu.com/DataServer?T=ter_w&x={x}&y={y}&l={z}&tk=7786923a385369346d56b966bb6ad62f',
    crossOrigin:"anonymous"
    })
    });

    var osmLayer = new ol.layer.Tile({//OSM地图
    visible: false,
    source: new ol.source.OSM()
    });

    var arcgisImgLayer = new ol.layer.Tile({//arcgis影像
    visible: false,
    source: new ol.source.XYZ({
    url: 'https://server.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}',
    crossOrigin:"anonymous"
    })
    });

    var arcgisVecLayer = new ol.layer.Tile({//arcgis街道
    visible: false,
    source: new ol.source.XYZ({
    url: 'http://cache1.arcgisonline.cn/arcgis/rest/services/ChinaOnlineCommunity/MapServer/tile/{z}/{y}/{x}',
    crossOrigin:"anonymous"
    })
    });

    var googleImgLayer = new ol.layer.Tile({//谷歌影像
    visible: false,
    source: new ol.source.XYZ({
    url: 'http://www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z}',
    crossOrigin:"anonymous"
    })
    });

    var googleVecLayer = new ol.layer.Tile({//谷歌街道
    visible: false,
    source: new ol.source.XYZ({
    url: 'http://www.google.cn/maps/vt?lyrs=m@189&gl=cn&x={x}&y={y}&z={z}',
    crossOrigin:"anonymous"
    })
    });

    var gaodeImgLayer = new ol.layer.Tile({//高德影像
    visible: false,
    source: new ol.source.XYZ({
    url: 'http://webst0{1-4}.is.autonavi.com/appmaptile?style=6&x={x}&y={y}&z={z}',
    crossOrigin:"anonymous"
    })
    });

    var gaodeVecLayer = new ol.layer.Tile({//高德街道
    visible: false,
    source: new ol.source.XYZ({
    url: 'http://webrd0{1-4}.is.autonavi.com/appmaptile?lang=zh_cn&size=1&scale=1&style=7&x={x}&y={y}&z={z}',
    crossOrigin:"anonymous"
    })
    });

    var layers = [
    satelliteLayer,
    streetLayer,
    terLayer,
    satelliteLabelLayer,
    streetLabelLayer,
    osmLayer,
    arcgisImgLayer,
    arcgisVecLayer,
    googleImgLayer,
    googleVecLayer,
    gaodeImgLayer,
    gaodeVecLayer,
    ];
    //地图创建
    var map = new ol.Map({
    layers: layers,
    target: 'map',
    view: new ol.View({
    projection: 'EPSG:4326',
    center: [103.49033880652411, 34.034467489614684],
    zoom: 7
    })
    });

    var mapconfig = [
    {"layer_id":"tmap_img_w","label":"天地卫星","className":"imgType"},//天地图卫星图
    {"layer_id":"tmap_vec_w","label":"天地街道","className":"vecType"},//天地图街道图
    {"layer_id":"tmap_img_w_h","label":"卫星混合","className":"imgType"},//天地图卫星混合图
    {"layer_id":"tmap_ter_w","label":"天地地形","className":"terType"},//天地图地形图
    {"layer_id":"tmap_ter_w_h","label":"地形混合","className":"terType"},//天地图地形混合图
    {"layer_id":"osm","label":"OSM","className":"vecType"},//OSM地图
    {"layer_id":"arcgis_img","label":"esri影像","className":"imgType"},//arcgis影像
    {"layer_id":"arcgis_vec","label":"esri街道","className":"vecType"},//arcgis街道
    {"layer_id":"google_img","label":"谷歌影像","className":"imgType"},//谷歌影像
    {"layer_id":"google_vec","label":"谷歌街道","className":"vecType"},//谷歌街道
    {"layer_id":"gaode_img","label":"高德影像","className":"imgType"},//高德影像
    {"layer_id":"gaode_vec","label":"高德街道","className":"vecType"},//高德街道
    ];
    loadSwitcherMap(mapconfig);//底图切换控件加载
    /**

    • 地图切换控件
      */
      function loadSwitcherMap(data){
      //设置底图不同类型
      var baseLayerSwitcherToolbar = new BaseLayerSwitcherToolBar({
      data: data
      });
      document.getElementById("map").appendChild(baseLayerSwitcherToolbar.target);
      baseLayerSwitcherToolbar.onItemClick = function(itemData,index,element){
      var data = itemData;
      console.log(data);
      switch (data.layer_id) {
      case "tmap_img_w"://卫星
      satelliteLayer.setVisible(true);
      satelliteLabelLayer.setVisible(false);
      streetLayer.setVisible(false);
      streetLabelLayer.setVisible(false);
      terLayer.setVisible(false);
      osmLayer.setVisible(false);
      arcgisImgLayer.setVisible(false);
      arcgisVecLayer.setVisible(false);
      googleImgLayer.setVisible(false);
      googleVecLayer.setVisible(false);
      gaodeImgLayer.setVisible(false);
      gaodeVecLayer.setVisible(false);
      break;
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