transformTranslate

描述

¥Description

Moves any geojson Feature or Geometry of a specified distance along a Rhumb Line on the provided direction angle.

Note that this moves the points of your shape individually and can therefore change the overall shape.How noticable this is depends on the distance and the used projection.

参数

¥Parameters

名称	类型	描述
geojson	GeoJSON | GeometryCollection	要平移的对象
distance	number	运动长度；negative values determine motion in opposite direction
direction	number	运动的长度；angle from North in decimal degrees, positive clockwise
options?	对象	可选参数（默认 ）
options.units?	单位	in which distance will be express;miles, kilometers, degrees, or radians (default 'kilometers')
options.zTranslation?	number	length of the vertical motion, same unit of distance (default 0)
options.mutate?	boolean	allows GeoJSON input to be mutated (significant performance increase if true) (default false)

返回

¥Returns

GeoJSON | GeometryCollection the translated GeoJSON object

示例

¥Examples

var poly = turf.polygon([
  [
    [0, 29],
    [3.5, 29],
    [2.5, 32],
    [0, 29],
  ],
]);
var translatedPoly = turf.transformTranslate(poly, 100, 35);

安装

¥Installation

$ npm install @turf/transform-translate

import { transformTranslate } from "@turf/transform-translate";
const result = transformTranslate(...);

$ npm install @turf/turf

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