基于ArcGIS Flex API实现动态标绘（1.1）

动态标绘API 1.1版本号。相较前一版本号1.0（点击进入）。该版本号提供标绘符号的编辑功能。

编辑功能包含两种编辑状态：编辑控制点。对标绘符号进行旋转、八方向拉伸、平移。

编辑控制点例如以下图所看到的：

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对标绘符号进行旋转、八方向拉伸、平移，例如以下图所看到的：

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代码演示样例

private var plotDrawTool:PlotDrawTool;

private var plotEditTool:PlotEditTool;

private var lineSymbol:SimpleLineSymbol = new SimpleLineSymbol("solid", 0x0000ff, 1, 2);

private var outline:SimpleLineSymbol = new SimpleLineSymbol("solid", 0xff0000, 1, 1);

private var fillSymbol:SimpleFillSymbol = new SimpleFillSymbol("solid", 0x00ff00, 0.5, outline);

private static const STATE_MOVE_SCALE_ROTATE:int = 0;

private static const STATE_EDIT_CONTROL_POINTS:int = 1;

private var editState:int = 0;

private var activePlot:Graphic;

private function init():void{

	// 实例化绘制工具

	this.plotDrawTool = new PlotDrawTool(map);

	// 监听 DRAW_END事件，绘制结束后可获得plot

	this.plotDrawTool.addEventListener(PlotDrawEvent.DRAW_END, drawEndHandler);

	// 实例化编辑工具

	this.plotEditTool = new PlotEditTool(map);

}

private function drawEndHandler(event:PlotDrawEvent):void{

	// 对plot设置渲染符号

	if(event.plotGraphic.geometry is Polygon)

		event.plotGraphic.symbol = fillSymbol;

	else if(event.plotGraphic.geometry is Polyline)

		event.plotGraphic.symbol = lineSymbol;

	// 显示

	this.graphicsLayer.add(event.plotGraphic);

	// 设置鼠标单击事件响应

	event.plotGraphic.addEventListener(MouseEvent.CLICK, graphicClickHandler);

}

private function graphicClickHandler(event:MouseEvent):void{

	var graphic:Graphic = event.currentTarget as Graphic;

	if(graphic == this.activePlot){

		if(this.editState == STATE_MOVE_SCALE_ROTATE){

			// 开启 移动+编辑控制点 状态

			this.plotEditTool.activate(PlotEditTool.MOVE|PlotEditTool.EDIT_CONTROL_POINTS, graphic);

			this.editState = STATE_EDIT_CONTROL_POINTS;

		}

		else{

			// 开启 移动+旋转缩放 状态

			this.plotEditTool.activate(PlotEditTool.MOVE|PlotEditTool.SCALE_ROTATE, graphic);

			this.editState = STATE_MOVE_SCALE_ROTATE;

		}

	}

	else{

		this.activePlot = graphic;

		this.plotEditTool.activate(PlotEditTool.MOVE|PlotEditTool.EDIT_CONTROL_POINTS, graphic);

		this.editState = STATE_EDIT_CONTROL_POINTS;

	}

}

]]>

</fx:Script>

<ns:Map id="map" level="5">

        <ns:ArcGISTiledMapServiceLayer url="http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer"/>

	<ns:GraphicsLayer id="graphicsLayer"/>

</ns:Map>

<s:Group left="50" top="20">

	<s:Rect width="100%" height="100%">

		<s:fill>

			<s:SolidColor color="0xcccccc" alpha="0.7"/>

		</s:fill>

	</s:Rect>

	<s:VGroup paddingBottom="10" paddingTop="10" paddingLeft="10" paddingRight="10">

		<s:HGroup verticalAlign="middle">

			<s:Label text="线标"/>

			<s:Button label="圆弧" click="{plotDrawTool.activate(PlotTypes.ARC)}"/>

			<s:Button label="曲线" click="{plotDrawTool.activate(PlotTypes.CURVE)}"/>

		</s:HGroup>

		<s:HGroup verticalAlign="middle">

			<s:Label text="面标"/>

			<s:Button label="圆形" click="{plotDrawTool.activate(PlotTypes.CIRCLE)}"/>

			<s:Button label="椭圆" click="{plotDrawTool.activate(PlotTypes.ELLIPSE)}"/>

			<s:Button label="弓形" click="{plotDrawTool.activate(PlotTypes.LUNE)}"/>

			<s:Button label="扇形" click="{plotDrawTool.activate(PlotTypes.SECTOR)}"/>

			<s:Button label="闭合曲线" click="{plotDrawTool.activate(PlotTypes.CLOSED_CURVE)}"/>

			<s:Button label="集结地" click="{plotDrawTool.activate(PlotTypes.GATHERING_PLACE)}"/>

		</s:HGroup>

		<s:HGroup verticalAlign="middle">

			<s:Label text="箭头"/>

			<s:Button label="直箭头" click="{plotDrawTool.activate(PlotTypes.STRAIGHT_ARROW)}"/>

			<s:Button label="细直箭头" click="{plotDrawTool.activate(PlotTypes.FINE_ARROW)}"/>

			<s:Button label="袭击方向" click="{plotDrawTool.activate(PlotTypes.ASSAULT_DIRECTION)}"/>

			<s:Button label="进攻方向" click="{plotDrawTool.activate(PlotTypes.ATTACK_ARROW)}"/>

			<s:Button label="进攻方向（尾）" click="{plotDrawTool.activate(PlotTypes.TAILED_ATTACK_ARROW)}"/>

			<s:Button label="钳击" click="{plotDrawTool.activate(PlotTypes.DOUBLE_ARROW)}"/>

			<s:Button label="分队战斗" click="{plotDrawTool.activate(PlotTypes.SQUAD_COMBAT)}"/>

			<s:Button label="分队战斗（尾）" click="{plotDrawTool.activate(PlotTypes.TAILED_SQUAD_COMBAT)}"/>

		</s:HGroup>

	</s:VGroup>

</s:Group>

演示样例代码下载地址 最新版本号

欢迎大家使用、反馈意见。

QQ：21587252  email：[email protected]