63 lines
2.5 KiB
Markdown
63 lines
2.5 KiB
Markdown
# @turf/transform-translate
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<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
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## transformTranslate
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Moves any geojson Feature or Geometry of a specified distance along a Rhumb Line
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on the provided direction angle.
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### Parameters
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* `geojson` **([GeoJSON][1] | [GeometryCollection][2])** object to be translated
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* `distance` **[number][3]** length of the motion; negative values determine motion in opposite direction
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* `direction` **[number][3]** of the motion; angle from North in decimal degrees, positive clockwise
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* `options` **[Object][4]** Optional parameters (optional, default `{}`)
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* `options.units` **Units** in which `distance` will be express; miles, kilometers, degrees, or radians (optional, default `'kilometers'`)
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* `options.zTranslation` **[number][3]** length of the vertical motion, same unit of distance (optional, default `0`)
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* `options.mutate` **[boolean][5]** allows GeoJSON input to be mutated (significant performance increase if true) (optional, default `false`)
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### Examples
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```javascript
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var poly = turf.polygon([[[0,29],[3.5,29],[2.5,32],[0,29]]]);
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var translatedPoly = turf.transformTranslate(poly, 100, 35);
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//addToMap
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var addToMap = [poly, translatedPoly];
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translatedPoly.properties = {stroke: '#F00', 'stroke-width': 4};
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```
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Returns **([GeoJSON][1] | [GeometryCollection][2])** the translated GeoJSON object
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[1]: https://tools.ietf.org/html/rfc7946#section-3
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[2]: https://tools.ietf.org/html/rfc7946#section-3.1.8
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[3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
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[4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
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[5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean
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<!-- This file is automatically generated. Please don't edit it directly. If you find an error, edit the source file of the module in question (likely index.js or index.ts), and re-run "yarn docs" from the root of the turf project. -->
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---
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This module is part of the [Turfjs project](https://turfjs.org/), an open source module collection dedicated to geographic algorithms. It is maintained in the [Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create PRs and issues.
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### Installation
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Install this single module individually:
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```sh
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$ npm install @turf/transform-translate
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```
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Or install the all-encompassing @turf/turf module that includes all modules as functions:
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```sh
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$ npm install @turf/turf
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```
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