• ArcGis API for JavaScript 开发笔记一 加载地图


    1、首先要配置GIS 环境

     参考资料:看下这些大神的资料:

    http://blog.sina.com.cn/s/blog_708bacf90100yddk.html

    http://blog.csdn.net/wufeishimeng/article/category/522004

    也可以查看官方的例子:

    https://developers.arcgis.com/javascript/jssamples/

    查看GIS 官方API

    https://developers.arcgis.com/javascript/jsapi/

         第一步:在arcgis api for javascript 官网下载压缩文件(链接:http://support.esrichina-bj.cn/2011/0223/960.html);

         第二步:解压下载的压缩包,在文件中找到init.js  dojo.js以记事本的方式打开,在里面搜索[HOSTNAME_AND_PATH_TO_JSAPI] 将其改为 localhost,然后放在C:inetpubwwwroot目录下。此目录为IIS默认网站的目录,若不适用离线服务,可适用GIS 提供的在线服务,如代码所示

         第三步:开始创建第一个程序

     1 <html xmlns="http://www.w3.org/1999/xhtml">
     2 <head runat="server">
     3     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     4     <title></title>
     5     <%--在此处引用GIS服务,此处为GIS提供的在线服务 --%>
     6     <%-- <link rel="stylesheet" href="https://js.arcgis.com/3.15/dijit/themes/tundra/tundra.css">
     7     <link rel="stylesheet" href="https://js.arcgis.com/3.15/esri/css/esri.css">
     8     <script src="https://js.arcgis.com/3.15/"></script>--%>
     9 
    10     <%--此处为我们配置好的离线服务,若出不来地图,仔细检查下你的文件路径是不是对的--%>
    11     <link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.14/jsapi/dijit/themes/claro/claro.css" />
    12     <link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.14/jsapi/esri/css/esri.css" />
    13     <script src="http://localhost/arcgis_js_api/library/3.14/jsapi/init.js" type="text/javascript"></script>
    14 
    15     <script>
    16         var map;
    17         require(["esri/map"], function (Map) {
    18             map = new Map("map", {
    19                 basemap: "streets", //显示的地图样式 此处为地图,basemap: "satellite", //实景图
    20                 center: [-80.94, 33.646], //地图加载后,初始位置
    21                 zoom: 8, //放大级别,值越大放大的比例就越大
    22                 slider: false,
    23                 maxZoom: 18,//地图最大缩放级别
    24                 minZoom: 1, //地图最小缩放级别
    25                 logo: false  //不显示Esri的logo
    26             });
    27 
    28             //加载地图服务
    29             var myTiledMapServiceLayer = new esri.layers.ArcGISTiledMapServiceLayer(
    30                     "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer");
    31             map.addLayer(myTiledMapServiceLayer);//添加到地图中
    32         });
    33     </script>
    34 </head>
    35 <body>
    36     <form id="form1" runat="server">
    37         <div>
    38             <%--定义一个div来放地图--%>
    39             <div id="map"></div>
    40         </div>
    41     </form>
    42 </body>
    43 </html>


    下面是在地图上添加图标,并且对图进行一些操作,如点击图片是弹出窗体及其内容

      1 <html xmlns="http://www.w3.org/1999/xhtml">
      2 <head runat="server">
      3     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
      4     <title></title>
      5     <%--在此处引用GIS服务,此处为GIS提供的在线服务 --%>
      6     <%-- <link rel="stylesheet" href="https://js.arcgis.com/3.15/dijit/themes/tundra/tundra.css">
      7     <link rel="stylesheet" href="https://js.arcgis.com/3.15/esri/css/esri.css">
      8     <script src="https://js.arcgis.com/3.15/"></script>--%>
      9 
     10     <%--此处为我们配置好的离线服务,若出不来地图,仔细检查下你的文件路径是不是对的--%>
     11     <link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.14/jsapi/dijit/themes/claro/claro.css" />
     12     <link rel="stylesheet" href="http://localhost/arcgis_js_api/library/3.14/jsapi/esri/css/esri.css" />
     13     <script src="http://localhost/arcgis_js_api/library/3.14/jsapi/init.js" type="text/javascript"></script>
     14 
     15     <script>
     16         var mymap, layer, layer2, state2, upindex, upjd, upwd;
     17         require(["esri/map", "esri/toolbars/draw", "esri/symbols/TextSymbol",
     18             "esri/symbols/SimpleMarkerSymbol", "esri/symbols/SimpleLineSymbol", "esri/symbols/PictureMarkerSymbol", "esri/geometry/Point", "esri/layers/GraphicsLayer",
     19             "esri/symbols/PictureFillSymbol", "esri/symbols/CartographicLineSymbol", "esri/SpatialReference", "esri/InfoTemplate",
     20             "esri/graphic",
     21             "esri/dijit/Bookmarks",
     22             "dojo/_base/Color", "dojo/dom", "dojo/on", "dojo/ready"
     23             , "extras/AddTag", "dijit/form/DateTextBox", "dojo/parser"], function (map, Draw, TextSymbol,
     24             SimpleMarkerSymbol, SimpleLineSymbol, PictureMarkerSymbol, Point, GraphicsLayer,
     25             PictureFillSymbol, CartographicLineSymbol, SpatialReference, InfoTemplate,
     26             Graphic, Bookmarks, Color, dom, on, ready, AddTag) {
     27                 mymap = new map("map", {
     28                     basemap: "streets", //显示的地图样式 此处为地图,basemap: "satellite", //实景图
     29                     center: [54.37957701171877, 24.19937270915223], //地图加载后,初始位置
     30                     zoom: 8, //放大级别,值越大放大的比例就越大
     31                     slider: false,
     32                     maxZoom: 18,//地图最大缩放级别
     33                     minZoom: 1, //地图最小缩放级别
     34                     logo: false  //不显示Esri的logo
     35                 });
     36 
     37                 //加载地图服务
     38                 var myTiledMapServiceLayer = new esri.layers.ArcGISTiledMapServiceLayer(
     39                         "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer");
     40                 mymap.addLayer(myTiledMapServiceLayer);//添加到地图中
     41 
     42                 //添加一个图层,用来存放图标
     43                 layer = new GraphicsLayer();
     44                 mymap.addLayer(layer);
     45 
     46                 layer2 = new GraphicsLayer();
     47                 mymap.addLayer(layer2);
     48                 //在地图的onload事件内给地图中加图标
     49                 mymap.on("load", function () {
     50                     AddImg();
     51                 });
     52 
     53                 //添加图标
     54                 function AddImg() {
     55                     var jd = 54.37957701171877, wd = 24.19937270915223; //通过经纬度加载图标
     56                     for (var i = 0; i < 2; i++) {
     57                         var point = new Point(jd, wd, new SpatialReference({ wkid: 4326 })); //设置加载图标的点
     58 
     59                         var picSymbol = new PictureMarkerSymbol("http://localhost/i_pushpin.png", 40, 40);//设置要显示的图片,以及宽度,高度
     60 
     61                         var picGraphic = new Graphic(point, picSymbol, { "jd": jd, "wd": wd, "id": i });// "jd": a1, "wd": a2, "id": 1这些为这个点的值,比如你若需要获取某个点的id,可在这里设置
     62 
     63                         layer.add(picGraphic);//添加到layer中
     64 
     65                         mymap.graphics.add(picGraphic); //添加到地图中
     66 
     67                         jd = 55.37957701171877;
     68                         wd = 25.19937270915223;
     69                     }
     70                 }
     71 
     72                 //对layer(图标)进行操作
     73                 //图层layer鼠标移入事件
     74                 layer.on("mouse-over", function (evt) {
     75                     var index1 = 0;
     76                     //获取当前鼠标所在的卡点标识
     77                     var index = evt.graphic.attributes.id;
     78 
     79                     //获取layer2有没有对象
     80                     var length = layer2.graphics.length;
     81                     if (length != 0) {
     82                         for (var i = 0; i < layer2.graphics.length; i++) {
     83                             if (layer2.graphics[i].attributes.id == upindex) {
     84                                 layer2.graphics[i].hide();
     85                                 //获取前一个卡点的经度
     86                                 var jds = upjd;
     87                                 //获取前一个卡点的纬度
     88                                 var wds = upwd;
     89                                 //创建一个点坐标
     90                                 var points = new Point(jds, wds, new SpatialReference({ wkid: 4326 }));
     91                                 //创建一个图片
     92                                 photoSymbol = new PictureMarkerSymbol("http://localhost/i_pushpin.png", 40, 40);
     93                                 //创建一个graphic
     94                                 var mygraphic = new Graphic(points, photoSymbol, { "jd": jds, "wd": wds, "id": upindex, "status": state2 });
     95                                 //添加到layer2图层
     96                                 layer.add(mygraphic);
     97                                 //添加到地图
     98                                 mymap.graphics.add(mygraphic);
     99                             }
    100                         }
    101                     }
    102 
    103                     //循环图层layer,找到当前选择的卡点图标
    104                     for (var i = 0; i < layer.graphics.length; i++) {
    105                         if (index1 == 0) {
    106                             if (layer.graphics[i].attributes.id == index) {
    107                                 //隐藏当前的图标
    108                                 layer.graphics[i].hide();
    109                                 //获取设备状态
    110                                 var state = evt.graphic.attributes.status;
    111                                 state2 = state;
    112                                 upindex = index;
    113                                 //获取当前卡点的经度
    114                                 var jds = evt.graphic.attributes.jd;
    115                                 upjd = jds;
    116                                 //获取当前卡点的纬度
    117                                 var wds = evt.graphic.attributes.wd;
    118                                 upwd = wds;
    119                                 //创建一个点坐标
    120                                 var points = new Point(jds, wds, new SpatialReference({ wkid: 4326 }));
    121                                 //创建一个图片
    122                                 var photoSymbol = new PictureMarkerSymbol("http://localhost/bz_red.png", 40, 45);
    123                                 //创建一个graphic
    124                                 var mygraphic = new Graphic(points, photoSymbol, { "jd": jds, "wd": wds, "id": index, "status": state });
    125                                 //添加到layer2图层
    126                                 layer2.add(mygraphic);
    127                                 //点击弹出窗体
    128                                 var str = "<table class='table' borderColor=#000000 height=40 cellPadding=1 width=150 align=center border=0>";
    129                                 //var czname = "实时过车";
    130                                 str += "<tr><td><a href='#' style='text-decoration: none;color:#000000' onclick='TrafficQuery(" + index + ")'>Traffic Query</a></td></tr>";
    131                                 str += "<tr><td><a href='#' style='text-decoration: none;color:#000000' onclick='RealTimeCar(" + jds + "," + wds + "," + index + ")'>Real Time Traffic</a></td></tr>";
    132                                 str += "</table>";
    133                                 //实例化一个窗体
    134                                 var infoTemplate = new InfoTemplate();
    135                                 //设置窗体的宽高
    136                                 mymap.infoWindow.resize(200, 300);
    137                                 //设置标题
    138                                 infoTemplate.setTitle("TestWindows");
    139                                 //设置内容
    140                                 infoTemplate.setContent(str);
    141                                 //绑定到mygraphic
    142                                 mygraphic.setInfoTemplate(infoTemplate);
    143                                 //添加到地图
    144                                 mymap.graphics.add(mygraphic);
    145                             }
    146                         }
    147                     }
    148                 });
    149             });
    150     </script>
    151 </head>
    152 <body>
    153     <form id="form1" runat="server">
    154         <div>
    155             <%--定义一个div来放地图--%>
    156             <div id="map"></div>
    157         </div>
    158     </form>
    159 </body>
    160 </html>

       

  • 相关阅读:
    rbac 授权
    docker overlayfs k8s overlayfs 目录文件太大
    pod oom
    文档怎么写
    fabric
    nacos 报错 Unknown column 'encrypted_data_key' in 'field list'
    【Oracle】RAC在启动时ohasd超时导致启动失败
    【SQLServer】查看sqlserver中的历史查询记录
    【Oracle】High CPU (%sys) Usage On Oracle Linux 6 UEK3 RAC Node
    【MySQL】MySQL 5.7中过滤复制和部分复制的变化
  • 原文地址:https://www.cnblogs.com/myInterHome-xuehu/p/5075618.html
Copyright © 2020-2023  润新知