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core_coordinates_validCoordinate.js.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>core/coordinates/validCoordinate.js - Jest-GeoJSON</title>
<meta
name="description"
content="An extended set of matcher functions for the Jest Javascript unit testing framework tailored to evaluating GeoJSON data."
/>
<meta
name="keywords"
content="jest-geojson, jest, testing, validation, geojson, test, gis, assertions, matchers, jest-tests, jest-matchers, javascript, node, npm"
/>
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content="jest-geojson, jest, testing, validation, geojson, test, gis, assertions, matchers, jest-tests, jest-matchers, javascript, node, npm"
/>
<meta property="og:title" content="Jest-GeoJSON Documentation" />
<meta property="og:type" content="article" />
<meta
property="og:image"
content="https://github.com/M-Scott-Lassiter/jest-geojson/blob/main/images/banner.svg"
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<meta property="og:url" content="https://github.com/M-Scott-Lassiter/jest-geojson" />
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href="https://github.com/M-Scott-Lassiter/jest-geojson"
target="_blank"
class="menu-item"
id="repository"
>Github Repo</a
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</h2>
<h3>Namespaces</h3>
<ul>
<li><a href="Core.html">Core</a></li>
<li>
<a href="Core.BoundingBoxes.html">Core.BoundingBoxes</a>
<ul class="methods">
<li data-type="method">
<a href="Core.BoundingBoxes.html#.valid2DBoundingBox"
>valid2DBoundingBox</a
>
</li>
<li data-type="method">
<a href="Core.BoundingBoxes.html#.valid3DBoundingBox"
>valid3DBoundingBox</a
>
</li>
<li data-type="method">
<a href="Core.BoundingBoxes.html#.validBoundingBox">validBoundingBox</a>
</li>
</ul>
</li>
<li>
<a href="Core.Coordinates.html">Core.Coordinates</a>
<ul class="methods">
<li data-type="method">
<a href="Core.Coordinates.html#.valid2DCoordinate">valid2DCoordinate</a>
</li>
<li data-type="method">
<a href="Core.Coordinates.html#.valid3DCoordinate">valid3DCoordinate</a>
</li>
<li data-type="method">
<a href="Core.Coordinates.html#.validCoordinate">validCoordinate</a>
</li>
</ul>
</li>
<li>
<a href="Core.FeatureCollections.html">Core.FeatureCollections</a>
<ul class="methods">
<li data-type="method">
<a href="Core.FeatureCollections.html#.featureCollection"
>featureCollection</a
>
</li>
</ul>
</li>
<li>
<a href="Core.Features.html">Core.Features</a>
<ul class="methods">
<li data-type="method">
<a href="Core.Features.html#.feature">feature</a>
</li>
<li data-type="method"><a href="Core.Features.html#.hasID">hasID</a></li>
</ul>
</li>
<li>
<a href="Core.Geometries.html">Core.Geometries</a>
<ul class="methods">
<li data-type="method">
<a href="Core.Geometries.html#.anyGeometry">anyGeometry</a>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.geometryCollection"
>geometryCollection</a
>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.lineStringGeometry"
>lineStringGeometry</a
>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.multiLineStringGeometry"
>multiLineStringGeometry</a
>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.multiPointGeometry"
>multiPointGeometry</a
>
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>multiPolygonGeometry</a
>
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<li data-type="method">
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</li>
<li data-type="method">
<a href="Core.Geometries.html#.polygonGeometry">polygonGeometry</a>
</li>
</ul>
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<li>
<a href="Core.Utilities.html">Core.Utilities</a>
<ul class="methods">
<li data-type="method">
<a href="Core.Utilities.html#.commonGeometryValidation"
>commonGeometryValidation</a
>
</li>
<li data-type="method">
<a href="Core.Utilities.html#.validGeoJSON">validGeoJSON</a>
</li>
</ul>
</li>
<li><a href="Matchers.html">Matchers</a></li>
<li>
<a href="Matchers.BoundingBoxes.html">Matchers.BoundingBoxes</a>
<ul class="methods">
<li data-type="method">
<a href="Matchers.BoundingBoxes.html#.isValid2DBoundingBox"
>isValid2DBoundingBox</a
>
</li>
<li data-type="method">
<a href="Matchers.BoundingBoxes.html#.isValid3DBoundingBox"
>isValid3DBoundingBox</a
>
</li>
<li data-type="method">
<a href="Matchers.BoundingBoxes.html#.isValidBoundingBox"
>isValidBoundingBox</a
>
</li>
</ul>
</li>
<li>
<a href="Matchers.Coordinates.html">Matchers.Coordinates</a>
<ul class="methods">
<li data-type="method">
<a href="Matchers.Coordinates.html#.isValid2DCoordinate"
>isValid2DCoordinate</a
>
</li>
<li data-type="method">
<a href="Matchers.Coordinates.html#.isValid3DCoordinate"
>isValid3DCoordinate</a
>
</li>
<li data-type="method">
<a href="Matchers.Coordinates.html#.isValidCoordinate"
>isValidCoordinate</a
>
</li>
</ul>
</li>
<li>
<a href="Matchers.FeatureCollections.html">Matchers.FeatureCollections</a>
<ul class="methods">
<li data-type="method">
<a href="Matchers.FeatureCollections.html#.toBeFeatureCollection"
>toBeFeatureCollection</a
>
</li>
</ul>
</li>
<li>
<a href="Matchers.Features.html">Matchers.Features</a>
<ul class="methods">
<li data-type="method">
<a href="Matchers.Features.html#.toBeFeature">toBeFeature</a>
</li>
<li data-type="method">
<a href="Matchers.Features.html#.toHaveID">toHaveID</a>
</li>
<li data-type="method">
<a href="Matchers.Features.html#.toHaveStringID">toHaveStringID</a>
</li>
</ul>
</li>
<li>
<a href="Matchers.Functional.html">Matchers.Functional</a>
<ul class="methods">
<li data-type="method">
<a href="Matchers.Functional.html#.toBeValidGeoJSON"
>toBeValidGeoJSON</a
>
</li>
</ul>
</li>
<li>
<a href="Matchers.Geometries.html">Matchers.Geometries</a>
<ul class="methods">
<li data-type="method">
<a href="Matchers.Geometries.html#.toBeAnyGeometry">toBeAnyGeometry</a>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBeGeometryCollection"
>toBeGeometryCollection</a
>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBeLineStringGeometry"
>toBeLineStringGeometry</a
>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBeMultiLineStringGeometry"
>toBeMultiLineStringGeometry</a
>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBeMultiPointGeometry"
>toBeMultiPointGeometry</a
>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBeMultiPolygonGeometry"
>toBeMultiPolygonGeometry</a
>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBePointGeometry"
>toBePointGeometry</a
>
</li>
<li data-type="method">
<a href="Matchers.Geometries.html#.toBePolygonGeometry"
>toBePolygonGeometry</a
>
</li>
</ul>
</li>
</ul>
</nav>
<div id="main">
<h1 class="page-title">core/coordinates/validCoordinate.js</h1>
<section>
<article>
<pre
class="prettyprint source linenums"
><code>const { valid2DCoordinate } = require('./valid2DCoordinate')
const { valid3DCoordinate } = require('./valid3DCoordinate')
/**
* Verifies a two or three element coordinate meets WGS-84 and GeoJSON validity requirements.
*
* @memberof Core.Coordinates
* @see https://github.com/M-Scott-Lassiter/jest-geojson/issues/4
* @param {number[]} coordinate A WGS-84 array of [longitude, latitude] or [longitude, latitude, alititude]
* @returns {boolean} True if a valid 2D or 3D GeoJSON coordinate. If invalid, it will throw an error.
* @throws {Error} Input must be an array of only two or three elments
* @example
* const goodCoord1 = validCoordinate([10, 20]) // true
* const goodCoord2 = validCoordinate([10, 20, 0]) // true
*
* const badExample1 = validCoordinate([10, -200]) // throws error for latitude being out of range
* const badExample2 = validCoordinate([10, 20, '0']) // throws error for altitude being a string instead of number
*/
function validCoordinate(coordinate) {
if (!Array.isArray(coordinate) || coordinate.length < 2 || coordinate.length > 3) {
throw new Error('Coordinate must be an array of either two or three elments.')
}
if (coordinate.length === 2) {
valid2DCoordinate(coordinate)
}
if (coordinate.length === 3) {
valid3DCoordinate(coordinate)
}
return true
}
exports.validCoordinate = validCoordinate
</code></pre>
</article>
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