config.xml文件的配置如下:
- <widget label="台风" icon="assets/images/typhoon.png" config="" url="widgets/ActualWeather/TyphoonWarningWidget.swf"/>
复制代码源代码目录如下: 界面效果: 大概的思路如下:从后台数据库获取台风的信息列表,展示在界面的表格里面;点击某条台风选项时候,会动态的在地图上展示台风的轨迹信息出来,点击某个时刻的台风轨迹时候,会弹出该时刻的台风详情气泡窗口来展示; 具体的技术:利用arcgis api的Geometry(Point、Polyline)、Graphic、infowindow等等,就是把台风点轨迹连成线,然后把点和线描绘出来展示在地图上。
TyphoonWarningWidget.mxml: - <?xml version="1.0" encoding="utf-8"?>
- <viewer:BaseWidget xmlns:fx="http://ns.adobe.com/mxml/2009"
- xmlns:s="library://ns.adobe.com/flex/spark"
- xmlns:mx="library://ns.adobe.com/flex/mx"
- xmlns:esri="http://www.esri.com/2008/ags"
- xmlns:viewer="com.esri.viewer.*"
- creationComplete="init()"
- width="340" height="440"
- >
- <fx:Declarations>
- </fx:Declarations>
- <fx:Script>
- <![CDATA[
- import com.esri.ags.Graphic;
- import com.esri.ags.SpatialReference;
- import com.esri.ags.geometry.Geometry;
- import com.esri.ags.geometry.MapPoint;
- import com.esri.ags.geometry.Polyline;
- import com.esri.ags.layers.GraphicsLayer;
- import com.esri.ags.symbols.PictureMarkerSymbol;
- import com.esri.ags.symbols.SimpleLineSymbol;
- import com.esri.ags.symbols.SimpleMarkerSymbol;
- import com.esri.ags.symbols.Symbol;
- import com.esri.ags.symbols.TextSymbol;
- import flash.globalization.NumberFormatter;
- import flash.utils.clearInterval;
- import flashx.textLayout.elements.BreakElement;
- import mx.collections.ArrayCollection;
- import mx.controls.Alert;
- import mx.controls.Text;
- import mx.core.FlexGlobals;
- import mx.events.CloseEvent;
- import mx.events.ListEvent;
- import mx.events.SliderEvent;
- import mx.formatters.Formatter;
- import mx.managers.PopUpManager;
- import spark.events.DropDownEvent;
- import spark.events.IndexChangeEvent;
- import spark.events.TitleWindowBoundsEvent;
- //台风10年年份集合
- private var dt:Date = new Date();
- private var yearnow:String=dt.fullYear.toString();
- private var yearReduceOne:int=dt.fullYear-1;
- private var yearReduceTwo:int=dt.fullYear-2;
- private var yearReduceThree:int=dt.fullYear-3;
- private var yearReduceFour:int=dt.fullYear-4;
- private var yearReduceFive:int=dt.fullYear-5;
- private var yearReduceSix:int=dt.fullYear-6;
- private var yearReduceSeven:int=dt.fullYear-7;
- private var yearReduceEight:int=dt.fullYear-8;
- private var yearReduceNine:int=dt.fullYear-9;
- /**
- *@autor:hanhh
- *@function: 台风功能
- *@date:2015/3/8
- */
- [Bindable]
- private var tfData:ArrayCollection=new ArrayCollection
- ([
- {formatTF_TIME :"2015-1-18 2时",tfLongitude:"113.92020120006099",tfLatitude:"22.58297969742287",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 3时",tfLongitude:"113.90973157163533",tfLatitude:"22.57488953000305",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 4时",tfLongitude:"113.88974409918636",tfLatitude:"22.572510068997218",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 6时",tfLongitude:"113.87023251893855",tfLatitude:"22.573937745600716",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 8时",tfLongitude:"113.84831768307485",tfLatitude:"22.57822077541121",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 12时",tfLongitude:"113.81357755238973",tfLatitude:"22.588214511635698",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 14时",tfLongitude:"113.79075852134382",tfLatitude:"22.599635924463684",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 16时",tfLongitude:"113.77315050990067",tfLatitude:"22.60867787628584",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 18时",tfLongitude:"113.7488800076412",tfLatitude:"22.620099289113824",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 20时",tfLongitude:"113.73317556500272",tfLatitude:"22.63009302533831",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 21时",tfLongitude:"113.72268214196701",tfLatitude:"22.631996594142976",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 23时",tfLongitude:"113.70367024853043",tfLatitude:"22.63247248634414",tfFs :"18",tfQy:"998"}
- ]);
- private var tfDataNew:ArrayCollection=new ArrayCollection
- ([
- {formatTF_TIME :"2015-1-18 4时",tfLongitude:"113.78552370713099",tfLatitude:"22.54586010573192",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 6时",tfLongitude:"113.77695764751",tfLatitude:"22.537769938312096",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 7时",tfLongitude:"113.76172909707269",tfLatitude:"22.53253512409927",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 9时",tfLongitude:"113.74647675202532",tfLatitude:"22.5349145851051",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 11时",tfLongitude:"113.74221751682488",tfLatitude:"22.543956536927254",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 13时",tfLongitude:"113.74124193781248",tfLatitude:"22.561088656169233",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 15时",tfLongitude:"113.7526395560304",tfLatitude:"22.57584131440538",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 17时",tfLongitude:"113.7445969778307",tfLatitude:"22.60249127767068",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 19时",tfLongitude:"113.70697769932852",tfLatitude:"22.60725019968234",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 21时",tfLongitude:"113.66655065683946",tfLatitude:"22.601539493268348",tfFs :"18",tfQy:"998"},
- {formatTF_TIME :"2015-1-18 23时",tfLongitude:"113.62800338854501",tfLatitude:"22.576793098807713",tfFs :"18",tfQy:"998"}
- ]);
- [Bindable]
- // 是否播放了.0:未播放,1:播放了。以播放情况下才可以通过列表关联到气泡
- private var isPlay:Number = 0;
- // 判断是不是播放到最后一点
- public var isPlayEndPoint:Boolean = false;
- // 判断台风是否在播放中
- public var isPlaying:Boolean = false;
- // 保存单击双击事件的状态
- public var tfxxTitle :String=null;
-
- //保存台风的中文名以便导出时使用
- public var tfZWName:String=null;
- // 保存单击双击事件的状态
- private var interval :Number= 0;
- private var tfInfoLayer:GraphicsLayer;//显示台风信息
- private var showTfNameIndex:String="";
- [Bindable]
- private var tfHistoryList:ArrayCollection=new ArrayCollection
- ([
- {id:"201501",happenTime:"2015-1-18",tfZhName:"",tfName :"MEaKKHLA",tfqd:"台风"},
- {id:"201502",happenTime:"2015-2-18",tfZhName:"",tfName :"HIGOS",tfqd:"强台风"}
- ]);
- private var typhoonSpeed:Number=0;
- /**
- * 初始化页面
- * @autor:hanhh
- */
- public function init():void{
- this.isResizeable = false;
- //取得当年台风列表
- var tfHappendTime:String;
- tfHappendTime=tfYear_DropDownList.selectedItem.tfHappendTime;
- //add by gwli
- graphicsLayer=new GraphicsLayer();
- map.addLayer(graphicsLayer);
-
- //add hanhh
- tfInfoLayer=new GraphicsLayer()
- map.addLayer(tfInfoLayer);
- }
- /**
- * 播放、停止
- * @autor:hanhh
- */
- public function button1_clickHandler(event:MouseEvent):void {
- graphicsLayer.clear();
- points =new Array();
- //再次播放时定位到最上面
- if(tfData.length>10){
- this.dataGrid.selectedIndex = 0;
- this.dataGrid.verticalScrollPosition=dataGrid.selectedIndex;
- }
- isPlaying = true;
- isPlay = 0;
- this.backButton.enabled = false;
- this.playbutton.enabled = false;
- recor=0;
- intervaltime = setInterval(drawTrace, typhoonSpeed,tfData); //播放速度关联
- }
- private var points:Array;//保存表格数据集的经纬度点集合
- private var polyline:Polyline;//线定义
- private var lastDrawGraphic:Graphic; //保存绘制线graphic
- private var GraphicMarker:Graphic;//保存绘制点轨迹graphic
- private var GraphicPicture:Graphic;//保存图片picturegraphic
- [Bindable]
- private var graphicsLayer:GraphicsLayer;//显示绘制图的layer
-
-
- //private var picgraphicsLayer:GraphicsLayer;//显示swf图标的layer
- //定时器
- private var intervaltime:uint;
- private var recor:int=0;//用来判断是否结束时间间隔函数的标识
- /**
- * 绘制轨迹函数
- * data,表格数据集,含有经纬度信息,用来描绘用的
- */
- public function drawTrace(data:ArrayCollection):void{
- //判断是否删除台风动态swf图标,保证地图上只显示一个
- if(GraphicPicture!=null && recor<data.length){
- graphicsLayer.remove(GraphicPicture);
- }
- polyline = new Polyline();
- lastDrawGraphic = new Graphic();
- GraphicMarker = new Graphic();
- GraphicPicture = new Graphic();
- lastDrawGraphic.symbol = new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, 0xDD2222, 0.8, 2);//设置线符号
- GraphicMarker.symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.STYLE_CIRCLE, 13, 0x0033DD);//设置点符号
- GraphicPicture.symbol = pic;
- if(recor<data.length){
- this.dataGrid.selectedIndex = recor;//实现轨迹点和datagrid的联动效果
- // 【台风改造】当台风的定位信息只有一页时,点击播放按钮,播放完毕后,整个数据会上移,而没有滚动条
- // 当前选择行居中
- if(recor>9){
- this.dataGrid.verticalScrollPosition=dataGrid.selectedIndex-3;
- }
- var mp:MapPoint = new MapPoint(Number(data.getItemAt(recor).tfLongitude),Number(data.getItemAt(recor).tfLatitude),map.spatialReference);//获取经纬度信息, 转换为点
- GraphicMarker.geometry = mp;
- GraphicMarker.attributes = { tfLongitude: data.getItemAt(recor).tfLongitude,tfLatitude: data.getItemAt(recor).tfLatitude,formatTF_TIME: data.getItemAt(recor).formatTF_TIME,tfFs: data.getItemAt(recor).tfFs, tfQy: data.getItemAt(recor).tfQy };//台风时间,风速,气压
- GraphicPicture.geometry =mp;
- points.push(mp);
- polyline.addPath(points);
- lastDrawGraphic.geometry = polyline;
- //GraphicMarker.addEventListener(MouseEvent.CLICK, onGraphicClick);//添加点单击graphic的监控事件
- GraphicMarker.addEventListener(MouseEvent.MOUSE_OVER, onGraphicMouseOver);//添加鼠标overgraphic的监控事件
- GraphicMarker.addEventListener(MouseEvent.MOUSE_OUT, onGraphicMouseOut);//添加鼠标outgraphic的监控事件
- graphicsLayer.add(lastDrawGraphic);//添加线
- graphicsLayer.add(GraphicPicture);//添加swf台风图标
- graphicsLayer.add(GraphicMarker);//添加点
- if(points.length>1)
- map.zoomTo(polyline);
- else
- map.zoomTo(mp);
- }
- else{
- if(intervaltime){
- clearInterval(intervaltime);
- }
- this.backButton.enabled = true;
- this.playbutton.enabled = true;
- }
- recor++;
- }
- /**
- * graphic mouseover事件
- * 获取各个时刻的点轨迹详细信息
- * 气泡弹出框来显示详细的信息
- */
- private function onGraphicMouseOver(event:MouseEvent):void
- {
- var graphic:Graphic=event.currentTarget as Graphic;
- //Alert.show("经纬度:"+graphic.attributes.tfLongitude+","+graphic.attributes.tfLatitude+"\n"+"台风时间:"+graphic.attributes.formatTF_TIME+"\n"+"风速:"+graphic.attributes.tfFs+"\n"+"气压:"+graphic.attributes.tfQy);
- var text:Text = new Text();
- text.text="经纬度:"+graphic.attributes.tfLongitude+","+graphic.attributes.tfLatitude+"\n"+"台风时间:"+graphic.attributes.formatTF_TIME+"\n"+"风速:"+graphic.attributes.tfFs+"\n"+"气压:"+graphic.attributes.tfQy;
- map.infoWindow.content =text;
- map.infoWindow.closeButtonVisible=true;
- map.infoWindow.show(graphic.geometry as MapPoint);
- }
- /**
- * graphic mouseout事件
- * 获取各个时刻的点轨迹详细信息
- * 气泡弹出框来显示详细的信息
- */
- private function onGraphicMouseOut(event:MouseEvent):void
- {
- map.infoWindow.hide();
- }
- /**
- * 改变播放速度
- * @autor:hanhh
- */
- private function changeSpend(event:SliderEvent):void{
- // 修改播放速度,在右端播放速度快
- typhoonSpeed =(0.5-Number(this.timeSelect.value))*1000;
- }
- /**
- *在年份下拉列表选择某一年取得台风列表
- * @autor:hanhh
- */
- protected function dropDownYearList_closeHandler(event:DropDownEvent):void{
- //取得选取台风发生年份
- var tfHappendTime:String=tfYear_DropDownList.selectedItem.tfHappendTime;
- }
- /**
- * @autor:hanhh
- *单击台风列表取得台风的详细信息
- */
- private function tfitemClick(event:ListEvent):void{
- tfInfoLayer.clear();
- this.playbutton.enabled = true;
- this.backButton.enabled = true;
- isPlay = 0;
- this.playbutton.enabled = true;
- // 修改播放速度,在右端播放速度快
- typhoonSpeed =Number(this.timeSelect.value)*1000;
- //得到选择项目的objec
- var selectedObj:*=this.tfDataGrid.selectedItem as Object;
- //如果有数据则弹出详细台风数据窗口
- if(selectedObj.tfZhName!="没有台风数据"){
- this.title.text=selectedObj.tfZhName+"("+selectedObj.tfName+")定位信息";
- this.tfDetail.visible=true;
- this.backButton.visible = true;
- this.tf.visible=false;
- this.playbutton.visible = true;
- tfxxTitle =selectedObj.tfZhName+"("+selectedObj.tfName+")";
- tfZWName=selectedObj.tfZhName;
- tfData=null;
- tfData =tfDataNew;
- }
-
- showTfNameIndex = "";
- showTfNameIndex += selectedObj.happenTime.substring(0,4)+"年第"+String(selectedObj.id).substr(2,selectedObj.id.length)+"号台风 "+selectedObj.tfZhName+"("+selectedObj.tfName+")\n";
- var textSymbol:TextSymbol=new TextSymbol(showTfNameIndex);
- this.left= Capabilities.screenResolutionX/7-this.width/7;
- this.top=Capabilities.screenResolutionY/7;
- var point:MapPoint=map.toMapFromStage(Number(this.left),Number(this.top));
- var graphic:Graphic=new Graphic(point);
- var textFormat:TextFormat=new TextFormat("Arial", 16, 0xe10601, true);
- textSymbol.textFormat=textFormat;
- graphic.symbol=textSymbol;
- tfInfoLayer.add(graphic);
- }
- /**
- * 风列表修改
- * @autor:hanhh
- * */
- public function openTfInfo(event:Event):void{
- this.tfDetail.visible=false;
- this.backButton.visible = false;
- this.title.text="台风列表";
- this.tf.visible=true;
- }
- //台风年份数据绑定
- [Bindable]
- private var arrYear:ArrayCollection=new ArrayCollection
- ([
- {tfHappendTime:yearnow},{tfHappendTime:yearReduceOne},{tfHappendTime:yearReduceTwo},{tfHappendTime:yearReduceThree},{tfHappendTime:yearReduceFour},
- {tfHappendTime:yearReduceFive},{tfHappendTime:yearReduceSix},{tfHappendTime:yearReduceSeven},{tfHappendTime:yearReduceEight},{tfHappendTime:yearReduceNine}
- ]);
- /**
- * 关闭事件
- * @autor:hanhh
- * */
- private function widgetClosedHandler(event:Event):void
- {
- graphicsLayer.clear();
- tfInfoLayer.clear();
- }
-
- ]]>
- </fx:Script>
- <fx:Declarations>
- <esri:PictureMarkerSymbol id="pic" source="@Embed(source='assets/images/tf.swf')"/>
- </fx:Declarations>
- <viewer:WidgetTemplate id="wTemplate" width="100%" height="100%" closed="widgetClosedHandler(event)">
- <s:Label text="台风列表" id="title" height="20" paddingTop="5" paddingLeft="5"/>
- <mx:LinkButton height="20" width="20" id="backButton" click="openTfInfo(event)" icon="@Embed('widgets/ActualWeather/images/BACK.png')" visible="false" right="5"/>
- <s:VGroup id="tf" paddingBottom="5" paddingLeft="5" paddingRight="5" paddingTop="25" gap="5" horizontalAlign="center" width="98%" height="100%" visible="true" >
- <s:HGroup verticalAlign="middle" width="100%">
- <!--根据年份选择台风下拉列表-->
- <s:Label text="选择查看的台风年份:" width="60%" fontFamily="宋体"/>
- <s:DropDownList id="tfYear_DropDownList" dataProvider="{arrYear}" labelField="tfHappendTime" close="dropDownYearList_closeHandler(event)" prompt="请选择台风年份" selectedIndex="0" width="40%"></s:DropDownList>
- </s:HGroup>
- <mx:DataGrid id="tfDataGrid" itemClick="tfitemClick(event)" doubleClickEnabled="true" width="100%" rowCount="12" dataProvider="{tfHistoryList}">
- <mx:columns >
- <mx:DataGridColumn headerText="台风编号" minWidth="50" dataField="id"/>
- <mx:DataGridColumn headerText="台风名" minWidth="70" dataField="tfZhName" />
- <mx:DataGridColumn headerText="强度" minWidth="90" dataField="tfqd" />
- </mx:columns>
- </mx:DataGrid>
- </s:VGroup>
- <s:VGroup paddingBottom="5" paddingLeft="5" paddingRight="5" paddingTop="25" gap="5" horizontalAlign="center" id="tfDetail" visible="false" width="98%">
- <s:HGroup width="100%">
- <mx:DataGrid dataProvider="{tfData}" id="dataGrid" horizontalScrollPolicy="auto" verticalScrollPolicy="auto" rowCount="11" width="100%" >
- <mx:columns>
- <mx:DataGridColumn textAlign="center" headerText="台风时间" width="80" dataField="formatTF_TIME"/>
- <mx:DataGridColumn textAlign="center" headerText="经度(°)" width="50" dataField="tfLongitude"/>
- <mx:DataGridColumn textAlign="center" headerText="纬度(°)" width="50" dataField="tfLatitude"/>
- <mx:DataGridColumn textAlign="center" headerText="风速(m/s)" dataField="tfFs" width="50"/>
- <mx:DataGridColumn textAlign="center" headerText="气压(Pa)" dataField="tfQy" width="50"/>
- </mx:columns>
- </mx:DataGrid>
- </s:HGroup>
- <s:HGroup width="100%" paddingTop="5">
- <mx:HRule width="100%" strokeWidth="2" alpha="0.5" id="qx" />
- </s:HGroup>
- <s:HGroup width="100%" verticalAlign="middle" paddingBottom="0" >
- <s:Label text="播放速度:"/>
- <mx:HSlider minimum="0.1" maximum="0.4" value="0.4" dataTipPlacement="top" change="changeSpend(event)"
- tickColor="black"
- snapInterval="0.1" tickInterval="0.1"
- allowTrackClick="true"
- liveDragging="true" id="timeSelect"
- />
- <s:Button id="playbutton" label="播放" width="60" click="button1_clickHandler(event)"/>
- </s:HGroup>
- </s:VGroup>
- </viewer:WidgetTemplate>
- </viewer:BaseWidget>
复制代码GIS作品:百度搜索:GIS之家(https://shop116521643.taobao.com/shop/view_shop.htm); QQ兴趣部落GIS技术交流:gis之家(http://buluo.qq.com/p/barindex.html?bid=327395); GIS毕业设计&项目承接群:238339408; GIS技术交流群:432512093
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