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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<h1 class="page-title">Source: BufferAnalyst.js</h1>
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<pre class="prettyprint source linenums"><code>/*********************************************************************************
Copyright © SuperMap. All rights reserved.
Author: Wang zihao
E-mail: pridehao@gmail.com
ref:DatasetVector
**********************************************************************************/
import {NativeModules} from 'react-native';
let BA = NativeModules.JSBufferAnalyst;
/**
* @class BufferAnalyst
* @description 缓冲区分析类。该类用于为点、线、面数据集（或记录集）创建缓冲区，包括单边缓冲区、多重缓冲区和线单边多重缓冲区。
**/
export default class BufferAnalyst {
/**
* 创建矢量数据集缓冲区
* @memberOf BufferAnalyst
* @param {Dataset} sourceDataSet - 源矢量数据集
* @param {Dataset} sourceDataSet - 用于存储缓冲区分析结果的数据集
* @param {BufferAnalystParameter} bufferAnalystParam - 缓冲区分析参数对象
* @param {boolean} isUnion - 是否合并缓冲区
* @param {boolean} isAttributeRetained - 是否保留进行缓冲区分析的对象的字段属性
* @returns {Promise.<boolean>}
*/
async createBuffer(sourceDataSet,resultDataSet,bufferAnalystParam,isUnion,isAttributeRetained){
try{
var {isCreate} = await BA.createBuffer(sourceDataSet._SMDatasetVectorId,resultDataSet._SMDatasetVectorId,bufferAnalystParam._SMBufferAnalystParameterId,isUnion,isAttributeRetained);
return isCreate;
}catch (e){
console.error(e);
}
}
/**
* 创建矢量数据集单边多重缓冲区
* @memberOf BufferAnalyst
* @param {Dataset} sourceDataSet - 源矢量数据集
* @param {Dataset} sourceDataSet - 用于存储缓冲区分析结果的数据集
* @param {array} arrBufferRadius - 指定的多重缓冲区半径列表
* @param {number} bufferRadiusUnit - 指定的缓冲区半径单位
* @param {number} semicircleSegment - 指定的弧短拟合数
* @param {boolean} isLeft - 是否生成左缓冲区
* @param {boolean} isUnion - 是否合并缓冲区
* @param {boolean} isAttributeRetained - 是否保留进行缓冲区分析的对象的字段属性
* @param {boolean} isRing - 是否生成环装缓冲区
* @returns {Promise.<boolean>}
*/
async createLineOneSideMultiBuffer(sourceDataSet,resultDataSet,arrBufferRadius,bufferRadiusUnit,semicircleSegment,isLeft,isUnion,isAttributeRetained,isRing){
try{
var {isCreate} = await BA.createLineOneSideMultiBuffer(sourceDataSet._SMDatasetVectorId,resultDataSet._SMDatasetVectorId,arrBufferRadius,bufferRadiusUnit,semicircleSegment,isLeft,isUnion,isAttributeRetained,isRing);
return isCreate;
}catch (e){
console.error(e);
}
}
/**
* 创建矢量数据集多重缓冲区
* @memberOf BufferAnalyst
* @param {Dataset} sourceDataSet - 源矢量数据集
* @param {Dataset} sourceDataSet - 用于存储缓冲区分析结果的数据集
* @param {array} arrBufferRadius - 指定的多重缓冲区半径列表
* @param {number} bufferRadiusUnit - 指定的缓冲区半径单位
* @param {number} semicircleSegment - 指定的弧短拟合数
* @param {boolean} isUnion - 是否合并缓冲区
* @param {boolean} isAttributeRetained - 是否保留进行缓冲区分析的对象的字段属性
* @param {boolean} isRing - 是否生成环装缓冲区
* @returns {Promise.<boolean>}
*/
async createMultiBuffer(sourceDataSet,resultDataSet,arrBufferRadius,bufferRadiusUnit,semicircleSegment,isUnion,isAttributeRetained,isRing){
try{
var {isCreate} = await BA.createMultiBuffer(sourceDataSet._SMDatasetVectorId,resultDataSet._SMDatasetVectorId,arrBufferRadius,bufferRadiusUnit,semicircleSegment,isUnion,isAttributeRetained,isRing);
return isCreate;
}catch (e){
console.error(e);
}
}
}
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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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