rn_supermap

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JSDoc: Class: DatasetVector</title> <script src="scripts/prettify/prettify.js"> </script> <script src="scripts/prettify/lang-css.js"> </script>  <link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css"> <link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css"> </head> <body> <div id="main"> <h1 class="page-title">Class: DatasetVector</h1> <section> <header> <h2>DatasetVector</h2> </header> <article> <div class="container-overview"> <h4 class="name" id="DatasetVector"><span class="type-signature"></span>new DatasetVector<span class="signature">()</span><span class="type-signature"></span></h4> <div class="description"> 矢量数据集类。用于对矢量数据集进行描述，并对之进行相应的管理和操作。对矢量数据集的操作主要包括数据查询、修改、删除、建立索引等。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line15">line 15</a> </li></ul></dd> </dl> </div> <h3 class="subsection-title">Methods</h3> <h4 class="name" id=".buildSpatialIndex"><span class="type-signature">(static) </span>buildSpatialIndex<span class="signature">(spatialIndexType)</span><span class="type-signature"> → {Promise.<boolean>}</span></h4> <div class="description"> 根据给定的空间索引类型来为矢量数据集创建空间索引。 </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>spatialIndexType</code></td> <td class="type"> <span class="param-type">DatasetVector.SpatialIndeType</span> </td> <td class="description last">指定的需要创建空间索引的类型</td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line121">line 121</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<boolean></span> </dd> </dl> <h4 class="name" id=".computeBounds"><span class="type-signature">(static) </span>computeBounds<span class="signature">()</span><span class="type-signature"> → {Promise.<object>}</span></h4> <div class="description"> 计算数据集的空间范围 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line163">line 163</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=".dropSpatialIndex"><span class="type-signature">(static) </span>dropSpatialIndex<span class="signature">()</span><span class="type-signature"> → {Promise.<boolean>}</span></h4> <div class="description"> 删除空间索引 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line135">line 135</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<boolean></span> </dd> </dl> <h4 class="name" id=".fromGeoJSON"><span class="type-signature">(static) </span>fromGeoJSON<span class="signature">(geoJson)</span><span class="type-signature"> → {Promise.<boolean>}</span></h4> <div class="description"> 将数据集中指定起止SmID的对象，转换成GeoJSON格式的字符串仅支持点、线、面和CAD数据集，转换点、线、面对象.hasAtrributte为true时，结果中包含属性值;hasAtrribute为false时，只有几何对象。 </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>geoJson</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last">json字符串</td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line198">line 198</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<boolean></span> </dd> </dl> <h4 class="name" id=".getRecordset"><span class="type-signature">(static) </span>getRecordset<span class="signature">(isEmptyRecordset, cursorType)</span><span class="type-signature"> → {Promise.<Recordset>}</span></h4> <div class="description"> 根据给定的参数来返回空的记录集或者返回包括所有记录的记录集对象。 </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>isEmptyRecordset</code></td> <td class="type"> <span class="param-type">boolean</span> </td> <td class="description last"></td> </tr> <tr> <td class="name"><code>cursorType</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last"></td> </tr> </tbody> </table> <dl class="details"> <dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>- 已弃用（所有recordset都使用json格式表达），此接口将在数个版本内移除，请慎用。</li></ul></dd> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line59">line 59</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<Recordset></span> </dd> </dl> <h4 class="name" id=".getSpatialIndexType"><span class="type-signature">(static) </span>getSpatialIndexType<span class="signature">()</span><span class="type-signature"> → {Promise.<DatasetVector.SpatialIndeType>}</span></h4> <div class="description"> 返回当前的空间索引类型 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line149">line 149</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<DatasetVector.SpatialIndeType></span> </dd> </dl> <h4 class="name" id=".query"><span class="type-signature">(static) </span>query<span class="signature">(queryParameter)</span><span class="type-signature"> → {Promise}</span></h4> <div class="description"> 通过设置查询条件对矢量数据集进行查询，该方法默认查询空间信息与属性信息。 </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>queryParameter</code></td> <td class="type"> <span class="param-type">object</span> </td> <td class="description last">定义的查询条件。</td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line76">line 76</a> </li></ul></dd> </dl> <h5>Returns:</h5> <div class="param-desc"> - 返回查询结果对象:result:{geoJson:geoJson结果集数组，每次10条,queryParameterId:查询条件对象的引用，可用于重复查询，counts:总记录数，batch：返回的批次数量，size：每批次记录数（最大为10），recordsetId：记录集对象引用} </div> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise</span> </dd> </dl> <h4 class="name" id=".queryByFilter"><span class="type-signature">(static) </span>queryByFilter<span class="signature">(attributeFilter, geoRegion, count, callback)</span><span class="type-signature"> → {Promise.<void>}</span></h4> <div class="description"> 异步空间查询，查询指定空间范围内符合字段条件的记录； </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>attributeFilter</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last">查询过滤字段</td> </tr> <tr> <td class="name"><code>geoRegion</code></td> <td class="type"> <span class="param-type">object</span> </td> <td class="description last">查询的区域</td> </tr> <tr> <td class="name"><code>count</code></td> <td class="type"> </td> <td class="description last">返回的查询结果个数</td> </tr> <tr> <td class="name"><code>callback</code></td> <td class="type"> <span class="param-type">function</span> </td> <td class="description last">返回结果的处理函数,回调参数callback(e){},e为Recordset的geoJson格式对象的数组</td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line216">line 216</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=".queryInBuffer"><span class="type-signature">(static) </span>queryInBuffer<span class="signature">(rectangle2D, cursorType)</span><span class="type-signature"> → {Promise.<Recordset>}</span></h4> <div class="description"> 查询落在已知空间范围内的记录。 </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>rectangle2D</code></td> <td class="type"> <span class="param-type"><a href="Rectangle2D.html">Rectangle2D</a></span> </td> <td class="description last"></td> </tr> <tr> <td class="name"><code>cursorType</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last"></td> </tr> </tbody> </table> <dl class="details"> <dt class="important tag-deprecated">Deprecated:</dt><dd><ul class="dummy"><li>- 已弃用（所有recordset都使用json格式表达），此接口将在数个版本内移除，请慎用。</li></ul></dd> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line40">line 40</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<Recordset></span> </dd> </dl> <h4 class="name" id=".toGeoJSON"><span class="type-signature">(static) </span>toGeoJSON<span class="signature">(hasAttributte, startID, endID)</span><span class="type-signature"> → {Promise.<string>}</span></h4> <div class="description"> 从GeoJSON字符串中获取几何对象，并将其存入数据集中仅支持点、线、面和CAD数据集，获取点、线、面对象 </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>hasAttributte</code></td> <td class="type"> <span class="param-type">boolean</span> </td> <td class="description last">是否包含属性值</td> </tr> <tr> <td class="name"><code>startID</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">起始SmID</td> </tr> <tr> <td class="name"><code>endID</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">结束SmID</td> </tr> </tbody> </table> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="DatasetVector.js.html">DatasetVector.js</a>, <a href="DatasetVector.js.html#line181">line 181</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<string></span> </dd> </dl> </article> </section> </div> <nav> <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 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