zoukankan      html  css  js  c++  java
  • ArcGIS For Flex学习之Mapping---Switching Basemaps

    今天开始系统的学习ArcGIS For Flex,先从ESRI的例子学起

     1 <?xml version="1.0" encoding="utf-8"?>
     2 <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
     3                xmlns:s="library://ns.adobe.com/flex/spark"
     4                xmlns:esri="http://www.esri.com/2008/ags"
     5                pageTitle="Toggle between Map Services">
     6     <!--
     7     Description:
     8     This sample demonstrates how to allow users to change
     9     between different basemaps.  There are different ways
    10     to visually accomplish this behavior, this is just one example.
    11 
    12     It also ensures that the levels of detail (LOD) are updated based on which basemap is selected.
    13     If all base maps have the same LODs, you wouldn't need the layerShowHandler function.
    14 
    15     Documentation:
    16     For more information, see the API documentation.
    17     http://resources.arcgis.com/en/help/flex-api/apiref/com/esri/ags/geometry/MapPoint.html
    18     http://resources.arcgis.com/en/help/flex-api/apiref/com/esri/ags/layers/TiledMapServiceLayer.html
    19     http://resources.arcgis.com/en/help/flex-api/apiref/com/esri/ags/layers/TiledMapServiceLayer.html#tileInfo
    20     http://resources.arcgis.com/en/help/flex-api/apiref/com/esri/ags/layers/supportClasses/TileInfo.html
    21     http://resources.arcgis.com/en/help/flex-api/apiref/com/esri/ags/layers/supportClasses/LOD.html
    22 
    23     http://resources.arcgis.com/en/help/flex-api/concepts/index.html#/Types_of_layers/017p00000027000000/
    24 
    25     ArcGIS REST API documentation:
    26     http://resources.arcgis.com/en/help/rest/apiref/mapserver.html
    27     http://resources.arcgis.com/en/help/rest/apiref/tile.html
    28 
    29     ArcGIS for Server documentation:
    30     http://resources.arcgis.com/en/help/main/10.1/#/What_is_a_map_service/0154000002m7000000/
    31     http://resources.arcgis.com/en/help/main/10.1/#/What_is_map_caching/01540000048q000000/
    32     -->
    33 
    34     <fx:Script>
    35         <![CDATA[
    36             import com.esri.ags.geometry.MapPoint;
    37             import com.esri.ags.layers.TiledMapServiceLayer;
    38 
    39             import mx.events.FlexEvent;
    40 
    41             private function layerShowHandler(event:FlexEvent):void
    42             {
    43                 // update the LODs/zoomslider to use/show the levels for the selected base map
    44                 var tiledLayer:TiledMapServiceLayer = event.target as TiledMapServiceLayer;
    45                 myMap.lods = tiledLayer.tileInfo.lods;
    46             }
    47         ]]>
    48     </fx:Script>
    49 
    50     <s:controlBarContent>
    51         <s:RichText width="100%">
    52             This sample demonstrates how to allow users to change
    53             between different basemaps.  There are different ways
    54             to visually accomplish this behavior, this is just one example.
    55             Click the different buttons on the bar below to switch basemaps.
    56         </s:RichText>
    57     </s:controlBarContent>
    58 
    59     <esri:Map id="myMap"
    60               level="4"
    61               load="myMap.centerAt(new MapPoint(-11713000, 4822000))">
    62         <esri:ArcGISTiledMapServiceLayer show="layerShowHandler(event)"
    63                                          url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"
    64                                          visible="{bb.selectedIndex == 0}"/>
    65         <esri:ArcGISTiledMapServiceLayer show="layerShowHandler(event)"
    66                                          url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"
    67                                          visible="{bb.selectedIndex == 1}"/>
    68         <esri:ArcGISTiledMapServiceLayer show="layerShowHandler(event)"
    69                                          url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer"
    70                                          visible="{bb.selectedIndex == 2}"/>
    71         <esri:ArcGISTiledMapServiceLayer show="layerShowHandler(event)"
    72                                          url="http://server.arcgisonline.com/ArcGIS/rest/services/Ocean_Basemap/MapServer"
    73                                          visible="{bb.selectedIndex == 3}"/>
    74         <esri:ArcGISTiledMapServiceLayer show="layerShowHandler(event)"
    75                                          url="http://server.arcgisonline.com/ArcGIS/rest/services/NatGeo_World_Map/MapServer"
    76                                          visible="{bb.selectedIndex == 4}"/>
    77     </esri:Map>
    78     <s:ButtonBar id="bb"
    79                  right="5" top="5"
    80                  requireSelection="true">
    81         <s:dataProvider>
    82             <s:ArrayList>
    83                 <fx:String>Streets</fx:String>
    84                 <fx:String>Topographic</fx:String>
    85                 <fx:String>Imagery</fx:String>
    86                 <fx:String>Oceans</fx:String>
    87                 <fx:String>National Geographic</fx:String>
    88             </s:ArrayList>
    89         </s:dataProvider>
    90     </s:ButtonBar>
    91 </s:Application>

    转载地址:https://developers.arcgis.com/flex/sample-code/switching-basemaps.htm

  • 相关阅读:
    PasswordHasher 算法
    Java的环境变量配置
    CSS2+DIV的学习心得
    struts2利用token机制拦截用户重复提交
    电脑开机出现 error: no such partition grub rescue
    MySQL limit实际用法的详细解析
    win7将硬盘由ATA修改为AHCI的方法
    与SVN相关的程序的调试问题【转】
    【转】JSP提交表单
    LigerUI 快速开发UI框架 链接
  • 原文地址:https://www.cnblogs.com/wicked-fly/p/4040206.html
Copyright © 2011-2022 走看看