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BufferSetting.js
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82 lines (71 loc) · 3.64 KB
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import {SuperMap} from '../SuperMap';
import {Util} from '../commontypes/Util';
import {BufferEndType, BufferRadiusUnit} from '../REST';
import {BufferDistance} from './BufferDistance';
/**
* @class SuperMap.BufferSetting
* @category iServer SpatialAnalyst Buffer
* @classdesc 缓冲区分析通用设置类。
* @param options - {Object} 缓冲区分析设置可选参数。如：<br>
* endType - {SuperMap.BufferEndType} 缓冲区端点枚举值。<br>
* leftDistance - {{@link SuperMap.BufferDistance}} 左侧缓冲距离。<br>
* rightDistance - {{@link SuperMap.BufferDistance}} 右侧缓冲距离。<br>
* semicircleLineSegment - {number} 圆头缓冲圆弧处线段的个数。<br>
* radiusUnit - {{@link SuperMap.BufferRadiusUnit}} 缓冲半径单位。
*/
export class BufferSetting {
constructor(options) {
/**
* @member SuperMap.BufferSetting.prototype.endType - {SuperMap.BufferEndType}
* @description 缓冲区端点枚举值。分为平头和圆头两种，默认为平头，即 SuperMap.BufferEndType.FLAT
*/
this.endType = BufferEndType.FLAT;
/**
* @member SuperMap.BufferSetting.prototype.leftDistance - {SuperMap.BufferDistance}
* @description 左侧缓冲距离。
* 默认为100。当为GeometryBufferAnalyst时，单位为默认地图的投影系的单位（如3857为米，4326为度），
* 当为DatasetBufferAnalyst时，单位通过BufferSetting.radiusUnit设置（默认全部为米）。
*/
this.leftDistance = new BufferDistance();
/**
* @member SuperMap.BufferSetting.prototype.rightDistance -{SuperMap.BufferDistance}
* @description 右侧缓冲距离。
* 默认为100。当为GeometryBufferAnalyst时，单位为默认地图的投影系的单位（如3857为米，4326为度），
* 当为DatasetBufferAnalyst时，单位通过BufferSetting.radiusUnit设置（默认全部为米）。
*/
this.rightDistance = new BufferDistance();
/**
* @member SuperMap.BufferSetting.prototype.semicircleLineSegment -{number}
* @description 圆头缓冲圆弧处线段的个数。即用多少个线段来模拟一个半圆，默认值为4。
*/
this.semicircleLineSegment = 4;
/**
* @member SuperMap.BufferSetting.prototype.radiusUnit - {SuperMap.BufferRadiusUnit}
* @description 缓冲半径单位，默认值为SuperMap.BufferRadiusUnit.METER，还可以是SuperMap.BufferRadiusUnit.MILIMETER、SuperMap.BufferRadiusUnit.CENTIMETER、SuperMap.BufferRadiusUnit.DECIMETER、SuperMap.BufferRadiusUnit.KILOMETER、SuperMap.BufferRadiusUnit.FOOT、SuperMap.BufferRadiusUnit.INCH、SuperMap.BufferRadiusUnit.MILE、SuperMap.BufferRadiusUnit.YARD。仅对BufferAnalyst有效
*/
this.radiusUnit = BufferRadiusUnit.METER;
if (options) {
Util.extend(this, options);
}
this.CLASS_NAME = "SuperMap.BufferSetting";
}
/**
* @function SuperMap.BufferSetting.prototype.destroy
* @description 释放资源，将引用资源的属性置空。
*/
destroy() {
let me = this;
me.endType = null;
if (me.leftDistance) {
me.leftDistance.destroy();
me.leftDistance = null;
}
if (me.rightDistance) {
me.rightDistance.destroy();
me.rightDistance = null;
}
me.semicircleLineSegment = null;
me.radiusUnit = null;
}
}
SuperMap.BufferSetting = BufferSetting;