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			176 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
		
		
			
		
	
	
			176 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
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								<!DOCTYPE html>
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								<html>
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								<head>
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								    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
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								    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>
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								    <meta name="apple-mobile-web-app-capable" content="yes"/>
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								    <title>动态标绘专题</title>
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								    <link href='./css/bootstrap.min.css' rel='stylesheet'/>
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								    <link href='./css/bootstrap-responsive.min.css' rel='stylesheet'/>
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								    <link href='./css/sm-extend.css' rel='stylesheet'/>
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								    <link href='./css/sm-doc.css' rel='stylesheet'/>
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								</head>
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								<body data-spy="scroll" data-target=".subnav" data-offset="50">
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								<!--导航条-->
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								<div class="navbar navbar-fixed-top" id="navbar">
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								</div>
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								<div id='container' class='container'>
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								<div class='page-header'>
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								    <h1>动态标绘专题--不使用标绘面板和属性面板</h1>
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								    <hr/>
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								    <h2>一、简介</h2>
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								        <p>前面提到,为了方便用户,SuperMap iClient for JavaScript动态标绘功能提供标绘和属性两个面板。如果用户不去加载现有面板的情况下还需要做哪些工作呢?
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								            这篇专题主要介绍的是在不存在标绘和属性面板的情况下,还需要做的工作。所以这里着重介绍<a calss="contentLink" href="PlottingTopic.html">动态标绘专题</a>
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								            里面替代“6、初始化标绘面板和属性面板”的初始化工作,而<a calss="contentLink" href="PlottingTopic.html">动态标绘专题</a>里面的1至5点的创建图层、标绘和编辑控件
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								            并添加到地图等的工作就不重复介绍了,但并不代表不需要。相反,他们都是动态标绘必须的工作。这点需要引起注意。
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								        </p>
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								    <h2>二、使用</h2>
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								    <h4>1、初始化标号库</h4>
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								    <p></p>
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								    <p>
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								        除了基本图元外,动态标绘里面用到的所有标号都是标号库提供的,也就是说,除了绘制基本图元以外,绘制其他所有标号都需要初始化标号所在的标号库。
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								    </p>
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								    <p>
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								        <pre>
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								//标绘服务地址
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								var plottingUrl = "http://localhost:8090/iserver/services/plot-jingyong/rest/plot/";
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								//声明动态标绘总控类,从总控类获取标号库管理类
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								var plotting = SuperMap.Plotting.getInstance(map, plottingUrl);
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								var symbolLibManager = plotting.getSymbolLibManager();
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								//判断标号库管理类如果没有进行初始化,则异步初始化。初始化完成后返回支持的标号库ID列表,目前由于服务器不支持多个标号库,所以客户端也不支持多个标号库。
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								if(!symbolLibManager.isInitializeOK()){
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								    //标号库管理类初始化完成的处理函数
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								    function initializeCompleted(result){
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								        console.log(result);
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								    }
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								    symbolLibManager.events.on({"initializeCompleted": initializeCompleted,
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								        scope: this});
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								    symbolLibManager.initializeAsync();
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								}
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								        </pre>
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								    </p>
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								    <p>值得注意的是:标号库管理类初始化完成后,返回支持的标号库ID列表所对应的标号库已经初始化完成,不需要再单独初始化。</p>
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								    <p>下面开始介绍鼠标标绘和编辑标号,严格意义来说,标绘和编辑不属于初始化工作。但是如果使用客户端提供的面板,这些工作都是封装在面板内部,是不需要用户自己去做任何事的。</p>
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								    <h4>2、绘制标号</h4>
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								    <p></p>
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								    <p>
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								        激活控件,绘制控件。这里以警用库的刑事案件标号为例。警用标号库的ID为421,刑事案件的Code为20100。用标号库ID和标号Code就可以确定要绘制的标号。
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								    </p>
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								    <p>
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								        <pre>
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								//激活控件
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								drawGraphicObject.activate();
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								//将标号的标号库ID、编号Code以及标绘服务地址赋值给标绘控件内部的handler,即SuperMap.Handler.GraphicObject
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								drawGraphicObject.handler.libID = 421;
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								drawGraphicObject.handler.symbolCode = 20100;
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								drawGraphicObject.handler.serverUrl = plottingUrl;
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								        </pre>
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								    </p>
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								    <h4>3、编辑标号</h4>
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								    <p></p>
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								    <p>
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								        选中标号后,可以鼠标编辑编号的大小、旋转等;也可以对标号的边线、衬线、填充、镜像、等级、子标号及注记等属性进行修改。
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								    </p>
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								    <p>
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								    <ul style="list-style-type:disc;">
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								        <li>鼠标编辑,鼠标编辑只需要在绘制结束后激活编辑控件。</li>
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								    </ul>
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								    <p>
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								        <pre>
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								//取消激活绘制控件
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								drawGraphicObject.deactivate();
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								//激活编辑控件
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								plottingEdit.activate();
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								        </pre>
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								    </p>
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								    <ul style="list-style-type:disc;">
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								        <li>修改属性。标号可以修改的属性分两部分存储,和风格有关的属性从SuperMap.Feature.Vector的style里获取,和形状有关的属性从SuperMap.Feature.Vector的geometry里获取。这里的代码段只以少部分属性为例,<a href="#properties"><span>4、动态标绘标号的属性</span></a>会具体列出所有属性。</li>
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								    </ul>
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								    <p>
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								        <pre>
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								//首先绑定图层的beforefeaturemodified事件
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								plottingLayer.events.register("featureselected", this, changeProperty);
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								//修改属性,featureselected事件的处理函数
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								function showFeatureProperty(selectFeatueEvt)
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								{
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								    if(selectFeatueEvt && selectFeatueEvt !== null){
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								        //被选中,要修改的feature
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								        selectfeature = selectFeatueEvt.feature;
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								        //修改风格相关的属性
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								        if(selectfeature !== null && selectfeature.style !== null){
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								            //修改边线宽度、边线颜色、边线颜色透明度
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								            selectfeature.style.strokeWidth = 2;
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								            selectfeature.style.strokeColor = "#ff0000";
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								            selectfeature.style.strokeOpacity = 1;
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								        }
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								        //修改形状相关的属性
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								        if(selectfeature !== null && selectfeature.geometry !== null){
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								            //修改旋转、缩放、标号等级,适用于点标号
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								            selectfeature.geometry.setRotate(30);
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								            selectfeature.geometry.setScale(1.2);
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								            selectfeature.geometry.setSymbolRank(1);
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								        }
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								    }
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								    SuperMap.Event.stop(selectFeatueEvt);
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								}
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								        </pre>
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								    </p>
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								    <h4>4、动态标绘标号的属性</h4>
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								    <p></p>
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								    <p>
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								        <table id="properties" width="100%" border="1">
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								            <tr><th>属性名/属性接口</th><th>属性含义</th><th>点标号</th><th>线面标号</th></tr>
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								            <tr><td>selectfeature.geometry.symbolType</td><td>获取标号几何类型,点标号、线面标号或者基本图元类型,只读属性</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.geometry.libID</td><td>获取标号所属标号库ID,只读属性</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.geometry.code</td><td>获取标号Code,只读属性</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.geometry.symbolName</td><td>获取标号名称,只读属性</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.strokeWith</td><td>{Number}设置/获取标号边线宽度,单位是像素</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.strokeColor</td><td>{String}设置/获取标号边线颜色, 例如,"ff0000"</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.strokeOpacity</td><td>{Number}设置/获取标号边线颜色透明度,取值范围(0-1)</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.strokeDashstyle</td><td>{String}设置/获取标号边线类型,dot、dash、dashdot、longdash、longdashdot、solid</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.surroundLineWidth</td><td>{Number}设置/获取标号衬线宽度,单位是像素</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.surroundLineColor</td><td>{String}设置/获取标号衬线颜色,例如,"ffff00"</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.surroundLineColorOpacity</td><td>{Number}设置/获取标号衬线颜色透明度,取值范围(0-1)</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fill</td><td>{Boolean}设置/获取标号填充,不需要填充则设置成false</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fillGradientMode</td><td>{String}设置/获取标号渐变填充方式,渐变填充的优先级高于填充,支持LINEAR、RADIAL两种渐变方式</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fillColor</td><td>{String}设置/获取标号填充颜色,例如,"ff0000"</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fillOpacity</td><td>{Number}设置/获取标号填充透明度,取值范围(0-1)</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fillBackColor</td><td>{String}设置/获取标号背景色,例如,"ffff00",渐变填充时生效</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fillBackOpacity</td><td>{Number}设置/获取标号背景填充透明度,,取值范围(0-1),渐变填充时生效</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.display</td><td>{String}设置/获取标号可见性,display可见,none不可见</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.style.fontSize</td><td>{String}设置/获取点标号注记字体大小,单位是像素,例如,fontSize="2em"</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.style.fontColor</td><td>{String}设置/获取点标号注记字体颜色,十六进制颜色</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.style.fontFamily</td><td>{String}设置/获取点标号注记字体类型</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setRotate(value)/getRetate()</td><td>{Number}设置/获取点标号旋转角度</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setScale(value)/getSclae()</td><td>{Number}设置/获取点标号缩放比例</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setNegativeImage(value)/getNegativeImage()</td><td>{Boolean}设置/获取点标号镜像</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setSymbolRank(value)/getSymbolRank()</td><td>{Number}设置/获取点标号等级,标号可以设置的等级范围可以通过selectfeature.geometry.symbolData.symbolRanks获取</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setSymbolSize(w, h)/getSymbolSize()</td><td>{Number, Number}设置/获取点标号大小,参数分别为军标宽度和高度,单位是像素</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setTextContent(value)/getTextContent()</td><td>{String}设置/获取点标号注记内容</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setTextPosition(value)/getTextPosition()</td><td>{Number}设置/获取点标号注记位置,有0:左上,1:左下,2:右上,3:右下,4:上,5:下,6:左,7:右,8:中间共九个位置,标号是否可以设置中间注记可以通过selectfeature.geometry.symbolData.middleMarkExist判断</td><td>支持</td><td>不支持</td></tr>
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								            <tr><td>selectfeature.geometry.setSurroundLineType(value)/getSurroundLineType()</td><td>{Number}设置/获取标号衬线类型,点标号只有0:无衬线和1:有衬线两种,而线面标号除了无衬线外,还有1:内侧衬线,2:外侧衬线,3:双侧衬线</td><td>支持</td><td>支持</td></tr>
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								            <tr><td>selectfeature.geometry.setSubSymbol(code,index)/getSubSymbol()</td><td>{Number, Number}设置/获取线面标号的子标号,参数分别为修改后的子标号code及其索引</td><td>不支持</td><td>支持</td></tr>
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								        </table>
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								    </p>
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								    <p>到这里为止,这篇专题对标号库初始化以及鼠标交互式标绘和编辑,相关属性的修改都做了详细介绍。相信即使不使用SuperMap iClient for JavaScript提供的标绘面板和属性面板,也可以很容易的熟悉动态标绘。</p>
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