truncate

描述

¥Description

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

参数

¥Parameters

名称	类型	描述
geojson	GeoJSON	any GeoJSON Feature, FeatureCollection, Geometry or GeometryCollection.
options?	对象	可选参数（默认 ）
options.precision?	number	coordinate decimal precision (default 6)
options.coordinates?	number	maximum number of coordinates (primarly used to remove z coordinates) (default 3)
options.mutate?	boolean	allows GeoJSON input to be mutated (significant performance increase if true) (default false)

返回

¥Returns

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(...);