三.Editing

功能需要Editor组件，FeatureLayer和GeometryService几个组件配合使用才能完成。

 Server主要有：GeometryServer，MapServer，FeatureServer，ImageServer。

 Editor它需要FeatureLayer的url是FeatureServer的服务才能进行编辑，  属性outFields的OBJECTID不可用，outFields展示的字段是表示可编辑的字段。

  Editor的编辑Template是FeatureServer的原本属性字段。

toolbarVisible="true"                工具栏  （实现，增，删，改）

toolbarCutVisible="true"           剪切按钮（剪开之后geometry分成几个部分，没有丢失）

toolbarMergeVisible="true"       合并按钮（几个geometry部分合并成一块）

toolbarReshapeVisible="true"    修正按钮（去掉部分边角）

三个按钮都添加之后，工具栏就全了

demo：

<?xml version="1.0" encoding="utf-8"?>

<s:Application 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"

               initialize="application1_initializeHandler(event)"

               pageTitle="Editor with all toolbar options">

    <!--

         This sample shows you how to use the editor component with a full toolbar.

    -->



    <fx:Style>

        @namespace esri "http://www.esri.com/2008/ags";



        esri|InfoWindow

        {

            background-color : #FFFFFF;

            border-thickness : 2;

        }

    </fx:Style>



    <fx:Script>

        <![CDATA[

            import com.esri.ags.components.supportClasses.CreateOptions;

            import com.esri.ags.tasks.GeometryService;

            import com.esri.ags.tools.DrawTool;



            import mx.events.FlexEvent;



            protected function application1_initializeHandler(event:FlexEvent):void

            {

                myEditor.featureLayers = [ fireAreas ];

                var myDrawTypePreferences:CreateOptions = new CreateOptions();

                // change the defauls drawing tool from "point-to-point" to "freehand"

                myDrawTypePreferences.polygonDrawTools = [ DrawTool.FREEHAND_POLYGON, DrawTool.POLYLINE, CreateOptions.AUTO_COMPLETE ];

                myEditor.createOptions = myDrawTypePreferences;

            }

        ]]>

    </fx:Script>



    <mx:VBox width="100%" height="100%">



        <esri:Map id="myMap" wrapAround180="true">

            <esri:extent>

                <esri:Extent id="sheepfire"

                             xmin="-13144000" ymin="4033000" xmax="-13066000" ymax="4099000">

                    <esri:SpatialReference wkid="102100"/>

                </esri:Extent>

            </esri:extent>

            <esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"/>

            <esri:FeatureLayer id="fireAreas"

                               mode="snapshot"

                               outFields="*"

                               url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Fire/Sheep/FeatureServer/2"/>

        </esri:Map>

        <esri:Editor id="myEditor"

                     width="100%"

                     geometryService="{new GeometryService('http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer')}"

                     map="{myMap}"

                     toolbarCutVisible="true"

                     toolbarMergeVisible="true"

                     toolbarReshapeVisible="true"

                     toolbarVisible="true"/>

        <s:Label width="100%" text="This feature layer has {fireAreas.numGraphics} ({fireAreas.selectedFeatures.length} selected) fire areas."/>



    </mx:VBox>

</s:Application>