rn_supermap
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rn_supermap 一款基于React-Native框架的移动应用开发工具。基于该开发工具，用户可以使用JavaScript开发语言，开发出在Android和IOS操作系统下运行的原生移动GIS应用，入门门槛低，一次开发，处处运行。
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<title>JSDoc: Class: OverlayAnalystParameter</title>
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<h1 class="page-title">Class: OverlayAnalystParameter</h1>
<section>
<header>
<h2>OverlayAnalystParameter</h2>
</header>
<article>
<div class="container-overview">
<h4 class="name" id="OverlayAnalystParameter"><span class="type-signature"></span>new OverlayAnalystParameter<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
叠加分析参数类。
该类主要提供进行叠加分析时，输出结果数据集的字段选择。在矢量叠加分析中，至少涉及到三个数据集，其中一个数据集的类型可以是点、线、面等，被称作输入数据集（在SuperMap GIS 中称作第一数据集）；另一个数据集是面数据集被称作叠加数据集（在SuperMap GIS 中称作第二数据集）；还有一个数据集就是叠加结果数据集 ，包含叠加后数据的几何信息和属性信息。叠加结果数据集中的属性信息来自于第一数据集和第二数据集的属性表，在进行叠加分析的时候，用户可以根据自己的需要在这两个数据集的属性表中选择需要保留的属性字段。
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line10">line 10</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id=".createObj"><span class="type-signature">(static) </span>createObj<span class="signature">()</span><span class="type-signature"> → {Promise.<object>}</span></h4>
<div class="description">
创建一个OverlayAnalystParameter对象
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line21">line 21</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<object></span>
</dd>
</dl>
<h4 class="name" id=".getOperationRetainedFields"><span class="type-signature">(static) </span>getOperationRetainedFields<span class="signature">()</span><span class="type-signature"> → {Promise.<array.<string>>}</span></h4>
<div class="description">
返回进行叠加分析的第二数据集或记录集中需要保留的字段名称集合。
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line65">line 65</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<array.<string>></span>
</dd>
</dl>
<h4 class="name" id=".getSourceRetainedFields"><span class="type-signature">(static) </span>getSourceRetainedFields<span class="signature">()</span><span class="type-signature"> → {Promise.<Promise.fields>}</span></h4>
<div class="description">
返回进行叠加分析的第一数据集或记录集中需要保留的字段名称集合。
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line93">line 93</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<Promise.fields></span>
</dd>
</dl>
<h4 class="name" id=".getTolerance"><span class="type-signature">(static) </span>getTolerance<span class="signature">()</span><span class="type-signature"> → {Promise.<void>}</span></h4>
<div class="description">
返回叠加分析的容限值。
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line51">line 51</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<void></span>
</dd>
</dl>
<h4 class="name" id=".setOperationRetainedFields"><span class="type-signature">(static) </span>setOperationRetainedFields<span class="signature">(fields)</span><span class="type-signature"> → {Promise.<void>}</span></h4>
<div class="description">
设置进行叠加分析的第二数据集或记录集中需要保留的字段名称集合。
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>fields</code></td>
<td class="type">
</td>
<td class="description last">进行叠加分析的第二数据集或记录集中需要保留的字段名称集合。</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line80">line 80</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<void></span>
</dd>
</dl>
<h4 class="name" id=".setSourceRetainedFields"><span class="type-signature">(static) </span>setSourceRetainedFields<span class="signature">(fields)</span><span class="type-signature"> → {Promise.<void>}</span></h4>
<div class="description">
设置进行叠加分析的第二数据集或记录集中需要保留的字段名称集合。
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>fields</code></td>
<td class="type">
</td>
<td class="description last">进行叠加分析的第二数据集或记录集中需要保留的字段名称集合。</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line108">line 108</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<void></span>
</dd>
</dl>
<h4 class="name" id=".setTolerance"><span class="type-signature">(static) </span>setTolerance<span class="signature">(rate)</span><span class="type-signature"> → {Promise.<void>}</span></h4>
<div class="description">
设置叠加分析的容限值。
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>rate</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last">叠加分析的容限值。</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="OverlayAnalystParameter.js.html">OverlayAnalystParameter.js</a>, <a href="OverlayAnalystParameter.js.html#line38">line 38</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Promise.<void></span>
</dd>
</dl>
</article>
</section>
</div>
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="BufferAnalyst.html">BufferAnalyst</a></li><li><a href="BufferAnalystParameter.html">BufferAnalystParameter</a></li><li><a href="DataDownloadService.html">DataDownloadService</a></li><li><a href="Dataset.html">Dataset</a></li><li><a href="DatasetVector.html">DatasetVector</a></li><li><a href="DatasetVectorInfo.html">DatasetVectorInfo</a></li><li><a href="Datasource.html">Datasource</a></li><li><a href="DatasourceConnectionInfo.html">DatasourceConnectionInfo</a></li><li><a href="DataUploadService.html">DataUploadService</a></li><li><a href="Feature.html">Feature</a></li><li><a href="FeatureSet.html">FeatureSet</a></li><li><a href="GeoLine.html">GeoLine</a></li><li><a href="Geometry.html">Geometry</a></li><li><a href="GeoPoint.html">GeoPoint</a></li><li><a href="GeoRegion.html">GeoRegion</a></li><li><a href="GeoStyle.html">GeoStyle</a></li><li><a href="Layer.html">Layer</a></li><li><a href="LayerSetting.html">LayerSetting</a></li><li><a href="LayerSettingVector.html">LayerSettingVector</a></li><li><a href="LocationManager.html">LocationManager</a></li><li><a href="Map.html">Map</a></li><li><a href="MapControl.html">MapControl</a></li><li><a href="MapView.html">MapView</a></li><li><a href="Navigation2.html">Navigation2</a></li><li><a href="OverlayAnalyst.html">OverlayAnalyst</a></li><li><a href="OverlayAnalystParameter.html">OverlayAnalystParameter</a></li><li><a href="Point.html">Point</a></li><li><a href="Point2D.html">Point2D</a></li><li><a href="QueryParameter.html">QueryParameter</a></li><li><a href="QueryService.html">QueryService</a></li><li><a href="Rectangle2D.html">Rectangle2D</a></li><li><a href="Scene.html">Scene</a></li><li><a href="Selection.html">Selection</a></li><li><a href="ServiceBase.html">ServiceBase</a></li><li><a href="ServiceQueryParameter.html">ServiceQueryParameter</a></li><li><a href="Size2D.html">Size2D</a></li><li><a href="Theme.html">Theme</a></li><li><a href="Track.html">Track</a></li><li><a href="TrackingLayer.html">TrackingLayer</a></li><li><a href="TraditionalNavi.html">TraditionalNavi</a></li><li><a href="Workspace.html">Workspace</a></li><li><a href="WorkspaceConnectionInfo.html">WorkspaceConnectionInfo</a></li></ul>
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