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@turf/clone
Advanced tools
@turf/clone is a module within the Turf.js library that allows you to create deep copies of GeoJSON objects. This is particularly useful when you need to manipulate or transform GeoJSON data without altering the original dataset.
Clone a Point
This feature allows you to clone a GeoJSON Point object. The code sample demonstrates how to create a point and then clone it using the @turf/clone module.
const turf = require('@turf/turf');
const point = turf.point([0, 0]);
const clonedPoint = turf.clone(point);
console.log(clonedPoint);
Clone a Polygon
This feature allows you to clone a GeoJSON Polygon object. The code sample demonstrates how to create a polygon and then clone it using the @turf/clone module.
const turf = require('@turf/turf');
const polygon = turf.polygon([[[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]]]);
const clonedPolygon = turf.clone(polygon);
console.log(clonedPolygon);
Clone a Feature Collection
This feature allows you to clone a GeoJSON Feature Collection. The code sample demonstrates how to create a feature collection and then clone it using the @turf/clone module.
const turf = require('@turf/turf');
const featureCollection = turf.featureCollection([turf.point([0, 0]), turf.point([1, 1])]);
const clonedFeatureCollection = turf.clone(featureCollection);
console.log(clonedFeatureCollection);
Lodash is a popular utility library that includes a deep clone function (lodash.cloneDeep) which can be used to clone GeoJSON objects. While it is not specifically designed for GeoJSON, it is a versatile tool that can handle various data types.
The rfdc (Really Fast Deep Clone) package is a highly efficient deep cloning library that can be used to clone GeoJSON objects. It is known for its performance and minimal footprint, making it a good alternative for cloning operations.
Prevents GeoJSON coordinates from being mutated, similar to JSON.parse(JSON.stringify(geojson)).
Only cloning coordinates can be 3x-20x faster than the parse + stringify
approach.
Parameters
geojson
GeoJSON GeoJSON ObjectcloneAll
[Boolean] clones entire GeoJSON (3-20x slower if True) (optional, default false
)Examples
var line = {
"type": "Feature",
"properties": {},
"geometry": {
"type": "LineString",
"coordinates": [[-74, 40], [-78, 42], [-82, 35]]
}
}
var lineCloned = turf.clone(line);
Returns GeoJSON cloned GeoJSON Object
This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.
Install this module individually:
$ npm install @turf/clone
Or install the Turf module that includes it as a function:
$ npm install @turf/turf
FAQs
turf clone module
The npm package @turf/clone receives a total of 992,863 weekly downloads. As such, @turf/clone popularity was classified as popular.
We found that @turf/clone demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 9 open source maintainers collaborating on the project.
Did you know?
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