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Version: 7.2.0

truncate

描述

¥Description

获取 GeoJSON 要素或要素集合,并根据几何体的精度进行截断。

¥Takes a GeoJSON Feature or FeatureCollection and truncates the precision of the geometry.

参数

¥Parameters

名称类型描述
geojsonGeoJSON任意 GeoJSON 要素、要素集合、几何图形或几何图形集合。
options?对象可选参数(默认 {})
options.precision?number坐标小数精度(默认 6)
options.coordinates?number最大坐标数(主要用于移除 z 坐标)(默认值为 3)
options.mutate?boolean允许 GeoJSON 输入发生修改(如果为 true,则性能显著提升)(默认为 false)

返回

¥Returns

具有截断几何的 GeoJSON

¥GeoJSON layer with truncated geometry

示例

¥Examples

var point = turf.point([70.46923055566859, 58.11088890802906, 1508]);
var options = { precision: 3, coordinates: 2 };
var truncated = turf.truncate(point, options);
//=truncated.geometry.coordinates => [70.469, 58.111]

安装

¥Installation

$ npm install @turf/truncate

import { truncate } from "@turf/truncate";
const result = truncate(...);
$ npm install @turf/turf

import * as turf from "@turf/turf";
const result = turf.truncate(...);