arcgis-Hawkeye.zip_flex

/**第一种：地图为静态地图，不因主屏地图比例尺的改变而改变。 *调用方法：绑定主屏map，给予鹰眼显示的图层。 **/ 代码如下： <?xml version="1.0" encoding="utf-8"?> <s:BorderContainer xmlns:esri="http://www.esri.com/2008/ags" xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" > <fx:Script> <![CDATA[ import com.esri.ags.Graphic; import com.esri.ags.events.ExtentEvent; import com.esri.ags.events.MapMouseEvent; import com.esri.ags.geometry.Extent; import com.esri.ags.geometry.MapPoint; import com.esri.ags.layers.GraphicsLayer; import com.esri.ags.symbols.SimpleFillSymbol; import com.esri.ags.symbols.SimpleLineSymbol; public var mapXml:XML; private var overviewMode:String; private var graphicLineSym:SimpleLineSymbol = new SimpleLineSymbol("solid", 0xFF0000, 0.8, 3); private var graphicPolySym:SimpleFillSymbol = new SimpleFillSymbol(null, 0xFF0000, 0.01, graphicLineSym); private var graphicsLayer:GraphicsLayer; private var ovGraphic:Graphic; private var xOff:Number; private var yOff:Number; [Bindable] public var map:Map=new Map(); public function ini():void { if (mapXml) { var mapType:String=mapXml.@mapType; var mapUrl:String=mapXml.@url; var initextent:String=mapXml.@initextent; var fullextent:String=mapXml.@fullExtent; var cacheMap:CacheMap=new CacheMap(); cacheMap._fullextent=fullextent; var extArr1:Array=fullextent.split(","); var extent:Extent=new Extent(Number(extArr1[0]), Number(extArr1[1]), Number(extArr1[2]), Number(extArr1[3])); cacheMap._baseURL=mapUrl; cacheMap.getXml(); ovMap.extent=extent; // ovMap.zoomSliderVisible=true; ovMap.addLayer(cacheMap); graphicsLayer = new GraphicsLayer(); graphicsLayer.symbol = graphicPolySym; ovMap.addLayer(graphicsLayer); ovGraphic = new Graphic(); ovGraphic.geometry = map.extent; ovGraphic.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler); ovGraphic.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler); graphicsLayer.add(ovGraphic); map.addEventListener(ExtentEvent.EXTENT_CHANGE, setOverviewExtent); updateOverviewExtent(); } } private function setOverviewExtent(event:ExtentEvent):void { ovGraphic.geometry = map.extent; if (overviewMode == "dynamic") ovMap.extent = map.extent.expand(3); } private function updateOverviewExtent():void { ovGraphic.geometry = map.extent; if (overviewMode == "dynamic") ovMap.extent = map.extent.expand(3); } private function mouseDownHandler(event:MouseEvent):void { var ext:Extent = ovGraphic.geometry as Extent; var mPt:MapPoint = ovMap.toMapFromStage(event.stageX, event.stageY); xOff = ext.center.x - mPt.x; yOff = ext.center.y - mPt.y; ovGraphic.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler); } private function mouseMoveHandler(event:MouseEvent):void { var mPt:MapPoint = ovMap.toMapFromStage(event.stageX, event.stageY); var tempX:Number = mPt.x + xOff; var tempY:Number = mPt.y + yOff; var ext:Extent = ovGraphic.geometry as Extent; var newext:Extent = new Extent(tempX - ext.width / 2, tempY - ext.height/ 2, tempX + ext.width / 2, tempY + ext.height / 2); ovGraphic.geometry = newext; if (!event.buttonDown) ovGraphic.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler); } private function mouseUpHandler(event:MouseEvent):void { map.extent = ovGraphic.geometry as Extent; ovGraphic.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler); } private function widgetOpenedHandler(event:Event):void { map.addEventListener(ExtentEvent.EXTENT_CHANGE, setOverviewExtent); setTimeout(updateOverviewExtent, 1000); } private function widgetClosedHandler(event:Event):void { map.removeEventListener(ExtentEvent.EXTENT_CHANGE, setOverviewExtent); } private function widgetMinimizedHandler(event:Event):void { map.removeEventListener(ExtentEvent.EXTENT_CHANGE, setOverviewExtent); } private function mapclick(e:MapMouseEvent):void{ var mPt:MapPoint = ovMap.toMapFromStage(e.stageX, e.stageY); var tempX:Number = mPt.x ; var tempY:Number = mPt.y ; var ext:Extent = ovGraphic.geometry as Extent; var newext:Extent = new Extent(tempX - ext.width / 2, tempY - ext.height/ 2, tempX + ext.width / 2, tempY + ext.height / 2); ovGraphic.geometry = newext; map.extent = ovGraphic.geometry as Extent; } ]]> </fx:Script> <esri:Map id ="ovMap" width ="100%" height ="100%" mapClick="mapclick(event)" panArrowsVisible ="false" zoomSliderVisible ="false" logoVisible ="false" scaleBarVisible ="false" panEnabled ="false" clickRecenterEnabled ="false" doubleClickZoomEnabled ="false" keyboardNavigationEnabled ="false" rubberbandZoomEnabled ="false" scrollWheelZoomEnabled ="false"> </esri:Map> </s:BorderContainer> /**第二种：鹰眼图因主屏地图比例尺的改变而改变，比较适用于大范围大区域的地图鹰眼制作 *代码如下： **/ package com.dse.common.gis { import com.esri.ags.Graphic; import com.esri.ags.Map; import com.esri.ags.events.ExtentEvent; import com.esri.ags.events.MapEvent; import com.esri.ags.geometry.Extent; import com.esri.ags.geometry.MapPoint; import com.esri.ags.layers.GraphicsLayer; import com.esri.ags.symbols.LineSymbol; import com.esri.ags.symbols.SimpleLineSymbol; import com.esri.ags.symbols.SimpleFillSymbol; import com.esri.ags.symbols.FillSymbol; import flash.events.Event; import flash.events.MouseEvent; //-------------------------------------- // Other metadata //-------------------------------------- [IconFile("overview-map.gif")] /** * An overview map that extends the base Map component and provides a convenience * for linking the overview map to the main map. */ public class OverviewMap extends Map { //-------------------------------------------------------------------------- // // Constructor // //-------------------------------------------------------------------------- /** * Creates a new overview map instance. * * @param map The main map that is linked to this overview map. */ public function OverviewMap( mainMap:Map = null ) { super(); this.mainMap = mainMap; // Disable map navigation mapNavigationEnabled = false; this.scale=2000000; // Hide the map controls logoVisible = false; panArrowsVisible = false; scaleBarVisible = false; zoomSliderVisible = false; addEventListener(MouseEvent.CLICK, onOverviewClick); } //-------------------------------------------------------------------------- // // Constants // //-------------------------------------------------------------------------- /** * Overview mode in which the overview map's extent remains constant. */ public static const STATIC_MODE:String = "static"; /** * Overview mode in which the overview map's extent changes to track the extent * of the associated main map. This is the default overview mode. */ public static const DYNAMIC_MODE:String = "dynamic"; //-------------------------------------------------------------------------- // // Variables // //--------------------------------------------------------------------------