imobile_for_reactnative

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iMobile for ReactNative，是SuperMap iMobile推出的一款基于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。

github.com/iMobileforJavaScript/imobile_for_reactnative

iMobileforJavaScript/imobile_for_reactnative

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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JSDoc: Class: Dataset</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: Dataset</h1> <section> <header> <h2>Dataset</h2> </header> <article> <div class="container-overview"> <h4 class="name" id="Dataset"><span class="type-signature"></span>new Dataset<span class="signature">()</span><span class="type-signature"></span></h4> <div class="description"> 所有数据集类型（如矢量数据集，栅格数据集等）的基类。提供各数据集共有的方法和事件。数据集一般为存储在一起的相关数据的集合；根据数据类型的不同，分为矢量数据集和栅格数据集和影像数据集，以及为了处理特定问题而设计的如拓扑数据集，网络数据集等。数据集是 GIS 数据组织的最小单位。其中矢量数据集是由同种类型空间要素组成的集合，所以也可以称为要素集。根据要素的空间特征的不同，矢量数据集又分为点数据集，线数据集，面数据集等，各矢量数据集是空间特征和性质相同而组织在一起的数据的集合。而栅格数据集由像元阵列组成，在表现要素上比矢量数据集欠缺，但是可以很好的表现空间现象的位置关系。光栅数据集包括影像数据集和栅格数据集。在 SuperMap 中有十八种类型的数据集，但目前版本支持的数据集主要有点数据集，线数据集，面数据集，文本数据集，纯属性表数据集和影像数据集。 </div> <h5 class="subsection-title">Properties:</h5> <table class="props"> <thead> <tr> <th>Name</th> <th>Type</th> <th class="last">Description</th> </tr> </thead> <tbody> <tr> <td class="name"><code>TYPE.TABULAR</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">纯属性数据集。</td> </tr> <tr> <td class="name"><code>TYPE.POINT</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">点数据集。</td> </tr> <tr> <td class="name"><code>TYPE.LINE</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">线数据集。</td> </tr> <tr> <td class="name"><code>TYPE.REGION</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">多边形数据集。</td> </tr> <tr> <td class="name"><code>TYPE.TEXT</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">文本数据集。</td> </tr> <tr> <td class="name"><code>TYPE.IMAGE</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">影像数据集。</td> </tr> <tr> <td class="name"><code>TYPE.CAD</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">复合数据集。</td> </tr> <tr> <td class="name"><code>TYPE.NETWORK</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">网络数据集。</td> </tr> <tr> <td class="name"><code>TYPE.NETWORK3D</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">三维网络数据集。</td> </tr> <tr> <td class="name"><code>TYPE.NdfVector</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">-</td> </tr> <tr> <td class="name"><code>TYPE.GRID</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">栅格数据集。</td> </tr> <tr> <td class="name"><code>TYPE.WMS</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">WMS数据集。</td> </tr> <tr> <td class="name"><code>TYPE.WCS</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">WCS数据集。</td> </tr> <tr> <td class="name"><code>TYPE.WFS</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">WFS数据集。</td> </tr> <tr> <td class="name"><code>TYPE.POINT3D</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">三维点数据集。</td> </tr> <tr> <td class="name"><code>TYPE.LINE3D</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">三维线数据集。</td> </tr> <tr> <td class="name"><code>TYPE.REGION3D</code></td> <td class="type"> <span class="param-type">number</span> </td> <td class="description last">三维面数据集。</td> </tr> <tr> <td class="name"><code>TYPE.DEM</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="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line13">line 13</a> </li></ul></dd> </dl> </div> <h3 class="subsection-title">Methods</h3> <h4 class="name" id=".getDatasource"><span class="type-signature">(static) </span>getDatasource<span class="signature">()</span><span class="type-signature"> → {Promise.<<a href="Datasource.html">Datasource</a>>}</span></h4> <div class="description"> 返回此数据集对象所属数据源对象。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line119">line 119</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<<a href="Datasource.html">Datasource</a>></span> </dd> </dl> <h4 class="name" id=".getEncodeType"><span class="type-signature">(static) </span>getEncodeType<span class="signature">()</span><span class="type-signature"> → {Promise.<Promise.type>}</span></h4> <div class="description"> 返回此数据集数据存储时的编码方式。对数据集采用压缩编码方式，可以减少数据存储所占用的空间，降低数据传输时的网络负载和服务器的负载。矢量数据集支持的编码方式有Byte，Int16，Int24，Int32，SGL，LZW，DCT，也可以指定为不使用编码方式。光栅数据支持的编码方式有DCT，SGL，LZW 或不使用编码方式。具体请参见EncodeType类型。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line135">line 135</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<Promise.type></span> </dd> </dl> <h4 class="name" id=".getFieldValue"><span class="type-signature">(static) </span>getFieldValue<span class="signature">(SQL, fieldName)</span><span class="type-signature"> → {Promise.<Array>}</span></h4> <div class="description"> 通过查询语句获取字段内容 </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>SQL</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last">查询语句</td> </tr> <tr> <td class="name"><code>fieldName</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last">字段名</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#line262">line 262</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<Array></span> </dd> </dl> <h4 class="name" id=".getGeoInnerPoint"><span class="type-signature">(static) </span>getGeoInnerPoint<span class="signature">(SQL)</span><span class="type-signature"> → {Promise.<Array>}</span></h4> <div class="description"> 通过查询语句获取所需几何对象内点集合 </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>SQL</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last">查询语句</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#line277">line 277</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<Array></span> </dd> </dl> <h4 class="name" id=".getPrjCoordSys"><span class="type-signature">(static) </span>getPrjCoordSys<span class="signature">()</span><span class="type-signature"> → {Promise.<PrjCoordSys>}</span></h4> <div class="description"> 返回数据集的投影信息。当该数据集的投影采用其所在数据源的投影时，该方法返回 null。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line61">line 61</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<PrjCoordSys></span> </dd> </dl> <h4 class="name" id=".getSMID"><span class="type-signature">(static) </span>getSMID<span class="signature">(SQL)</span><span class="type-signature"> → {Promise.<Array>}</span></h4> <div class="description"> 通过查询语句获取所需几何对象ID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>SQL</code></td> <td class="type"> <span class="param-type">string</span> </td> <td class="description last">查询语句</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#line246">line 246</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<Array></span> </dd> </dl> <h4 class="name" id=".getType"><span class="type-signature">(static) </span>getType<span class="signature">()</span><span class="type-signature"> → {Dataset.Type}</span></h4> <div class="description"> 返回此数据集的类型。目前版本支持的数据集类型包括纯属性表数据集、点数据集、线数据集、面数据集、文本数据集和影像数据集（DatasetImage）。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line105">line 105</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Dataset.Type</span> </dd> </dl> <h4 class="name" id=".isopen"><span class="type-signature">(static) </span>isopen<span class="signature">()</span><span class="type-signature"> → {boolean}</span></h4> <div class="description"> 判断此数据集是否已经打开。在数据源连接了数据，即数据源被打开之后，数据集默认是不打开数据集的，如果要对数据集的数据进行修改或其他操作，数据集必须是打开的，否则无法进行操作。可以通过该方法来判定数据集是否已被打开。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line91">line 91</a> </li></ul></dd> </dl> <h5>Returns:</h5> <div class="param-desc"> - 如果此数据集已经被打开，返回 true；否则返回 false。 </div> <dl> <dt> Type </dt> <dd> <span class="param-type">boolean</span> </dd> </dl> <h4 class="name" id=".openDataset"><span class="type-signature">(static) </span>openDataset<span class="signature">()</span><span class="type-signature"> → {boolean}</span></h4> <div class="description"> 用于打开数据集，准备对数据集进行操作。在数据源连接了数据，即数据源被打开之后，数据集默认是不打开的，如果要对数据集的数据进行修改或其他操作，数据集必须是打开的，否则无法进行操作。可以先使用 isOpen 方法来判断一下数据集是否已经被打开。 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line77">line 77</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">boolean</span> </dd> </dl> <h4 class="name" id=".toDatasetVector"><span class="type-signature">(static) </span>toDatasetVector<span class="signature">()</span><span class="type-signature"> → {Promise.<<a href="DatasetVector.html">DatasetVector</a>>}</span></h4> <div class="description"> 转成DatasetVector对象 </div> <dl class="details"> <dt class="tag-source">Source:</dt> <dd class="tag-source"><ul class="dummy"><li> <a href="Dataset.js.html">Dataset.js</a>, <a href="Dataset.js.html#line44">line 44</a> </li></ul></dd> </dl> <h5>Returns:</h5> <dl> <dt> Type </dt> <dd> <span class="param-type">Promise.<<a href="DatasetVector.html">DatasetVector</a>></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 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> </nav> <br class="clear"> <footer> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Tue Aug 01 2017 16:16:50 GMT+0800 (CST) </footer> <script> prettyPrint(); </script> <script src="scripts/linenumber.js"> </script> </body> </html>