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Core.Geometries.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Geometries - 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"
/>
<meta
name="keyword"
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"
/>
<meta property="og:site_name" content="Jest-GeoJSON" />
<meta property="og:url" content="https://github.com/M-Scott-Lassiter/jest-geojson" />
<script src="scripts/prettify/prettify.js"></script>
<script src="scripts/prettify/lang-css.js"></script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify.css" />
<link type="text/css" rel="stylesheet" href="styles/jsdoc.css" />
<script src="scripts/nav.js" defer></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<input type="checkbox" id="nav-trigger" class="nav-trigger" />
<label for="nav-trigger" class="navicon-button x">
<div class="navicon"></div>
</label>
<label for="nav-trigger" class="overlay"></label>
<nav class="wrap">
<input type="text" id="nav-search" placeholder="Search" />
<h2><a href="index.html">Home</a></h2>
<h2>
<a
href="https://github.com/M-Scott-Lassiter/jest-geojson"
target="_blank"
class="menu-item"
id="repository"
>Github Repo</a
>
</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
>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.multiPolygonGeometry"
>multiPolygonGeometry</a
>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.pointGeometry">pointGeometry</a>
</li>
<li data-type="method">
<a href="Core.Geometries.html#.polygonGeometry">polygonGeometry</a>
</li>
</ul>
</li>
<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">Geometries</h1>
<section>
<header>
<h2>
<span class="ancestors"><a href="Core.html">Core</a>.</span>
Geometries
</h2>
</header>
<article>
<div class="container-overview">
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source">
<ul class="dummy">
<li>
<a href="typedefinitions.js.html">typedefinitions.js</a>,
<a href="typedefinitions.js.html#line106">line 106</a>
</li>
</ul>
</dd>
</dl>
<div class="description usertext">
Geometry object validation functions used within Core.
</div>
</div>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id=".anyGeometry">
<span class="type-signature">(static) </span>anyGeometry<span
class="signature"
>(geometryObject)</span
><span class="type-signature"> → {boolean}</span>
</h4>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source">
<ul class="dummy">
<li>
<a href="core_geometries_anyGeometry.js.html"
>core/geometries/anyGeometry.js</a
>,
<a href="core_geometries_anyGeometry.js.html#line61">line 61</a>
</li>
</ul>
</dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li>
<a
href="https://github.com/M-Scott-Lassiter/jest-geojson/issues/15"
>https://github.com/M-Scott-Lassiter/jest-geojson/issues/15</a
>
</li>
</ul>
</dd>
</dl>
<div class="description usertext">
Verifies an object meets validity requirements for one of the six basic
GeoJSON geometry types: Point, MultiPoint, LineString, MultiLineString,
Polygon, MultiPolygon, GeometryCollection
</div>
<h5>Example</h5>
<pre class="prettyprint"><code>point = {
type: 'Point',
coordinates: [100.0, 0.0]
}
lineString = {
type: 'LineString',
coordinates: [
[
[180.0, 40.0],
[180.0, 50.0],
[170.0, 50.0],
[170.0, 40.0],
[180.0, 40.0]
]
]
}
polygon = {
type: 'Polygon',
coordinates: [
[
[100.0, 0.0],
[101.0, 0.0],
[101.0, 1.0],
[100.0, 1.0],
[100.0, 0.0]
]
]
}
feature = {
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [102.0, 0.5]
}
}
const goodExample1 = anyGeometry(point)) // true
const goodExample2 = anyGeometry(lineString)) // true
const goodExample3 = anyGeometry(polygon)) // true
const badExample = anyGeometry(feature)) // throws error</code></pre>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>geometryObject</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last">
A WGS-84 array of [longitude, latitude] or [longitude, latitude,
alititude]
</td>
</tr>
</tbody>
</table>
<h5>Throws:</h5>
<dl>
<dt>
<div class="param-desc usertext">
Input must be either a valid Point, MultiPoint, LineString,
MultiLineString, Polygon, MultiPolygon, or GeometryCollection
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
True if a valid GeoJSON geometry object. If invalid, it will throw an error.
</div>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
<h4 class="name" id=".geometryCollection">
<span class="type-signature">(static) </span>geometryCollection<span
class="signature"
>(geometryObject)</span
><span class="type-signature"> → {boolean}</span>
</h4>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source">
<ul class="dummy">
<li>
<a href="core_geometries_geometryCollection.js.html"
>core/geometries/geometryCollection.js</a
>,
<a href="core_geometries_geometryCollection.js.html#line55"
>line 55</a
>
</li>
</ul>
</dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li>
<a
href="https://github.com/M-Scott-Lassiter/jest-geojson/issues/16"
>https://github.com/M-Scott-Lassiter/jest-geojson/issues/16</a
>
</li>
</ul>
</dd>
</dl>
<div class="description usertext">
Verifies an object is a valid GeoJSON GeometryCollection. This object
requires a 'type' property that must equal "GeometryCollection", and a
'geometries' property that contains an array of GeoJSON Geometry objects
(Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon) The
geometries may be an empty array, but may not be an array of empty arrays or
objects. Foreign members are allowed with the exceptions thrown below. If
present, bounding boxes must be valid.
</div>
<h5>Example</h5>
<pre class="prettyprint"><code>const collection = {
type: 'GeometryCollection',
geometries: [{
"type": 'Point',
"coordinates": [100.0, 0.0]
}, {
type: 'LineString',
coordinates: [
[101.0, 0.0],
[102.0, 1.0]
]
}, {
type: 'Polygon',
coordinates: [
[
[102.0, 2.0],
[103.0, 2.0],
[103.0, 3.0],
[102.0, 3.0],
[102.0, 2.0]
]
]
}, {
type: 'Point',
coordinates: [150.0, 73.0]
}]
}
const goodExample = geometryCollection(collection) // true
const badExample1 = geometryCollection(collection.geometries) // throws error
const badExample2 = geometryCollection(collection.geometries[1]) // throws error</code></pre>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>geometryObject</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last">a GeoJSON Geometry object</td>
</tr>
</tbody>
</table>
<h5>Throws:</h5>
<ul>
<li>
<dl>
<dt>
<div class="param-desc usertext">Argument not an object</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Must have a type property with value 'GeometryCollection'
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Forbidden from having a property 'geometry', 'properties',
or 'features'
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
</ul>
<h5>Returns:</h5>
<div class="param-desc">
True if a valid GeoJSON GeometryCollection Geometry. If invalid, it will
throw an error.
</div>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
<h4 class="name" id=".lineStringGeometry">
<span class="type-signature">(static) </span>lineStringGeometry<span
class="signature"
>(geometryObject)</span
><span class="type-signature"> → {boolean}</span>
</h4>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source">
<ul class="dummy">
<li>
<a href="core_geometries_lineStringGeometry.js.html"
>core/geometries/lineStringGeometry.js</a
>,
<a href="core_geometries_lineStringGeometry.js.html#line39"
>line 39</a
>
</li>
</ul>
</dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li>
<a
href="https://github.com/M-Scott-Lassiter/jest-geojson/issues/11"
>https://github.com/M-Scott-Lassiter/jest-geojson/issues/11</a
>
</li>
</ul>
</dd>
</dl>
<div class="description usertext">
Verifies an object is a valid GeoJSON LineString Geometry. This geometry
requires a 'type' property that must equal "LineString", and a 'coordinates'
property that contains an array of two or more valid WGS-84 GeoJSON
coordinates. The coordinates may be an empty array, but may not be an array
of empty arrays. Foreign members are allowed with the exceptions thrown
below. If present, bounding boxes must be valid.
</div>
<h5>Example</h5>
<pre class="prettyprint"><code>const linestring = {
type: 'LineString',
coordinates: [
[
[180.0, 40.0], [180.0, 50.0], [170.0, 50.0],
[170.0, 40.0], [180.0, 40.0]
]
]
}
const point = {
type: 'Point',
coordinates: [100.0, 0.0]
}
const goodExample = lineStringGeometry(linestring) // true
const badExample = lineStringGeometry(point)) / throws error</code></pre>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>geometryObject</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last">
a GeoJSON LineString Geometry object
</td>
</tr>
</tbody>
</table>
<h5>Throws:</h5>
<ul>
<li>
<dl>
<dt>
<div class="param-desc usertext">Argument not an object</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Must have a type property with value 'LineString'
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Forbidden from having a property 'geometry', 'properties',
or 'features'
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
</ul>
<h5>Returns:</h5>
<div class="param-desc">
True if a valid GeoJSON LineString Geometry. If invalid, it will throw an
error.
</div>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
<h4 class="name" id=".multiLineStringGeometry">
<span class="type-signature">(static) </span>multiLineStringGeometry<span
class="signature"
>(geometryObject)</span
><span class="type-signature"> → {boolean}</span>
</h4>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source">
<ul class="dummy">
<li>
<a href="core_geometries_multiLineStringGeometry.js.html"
>core/geometries/multiLineStringGeometry.js</a
>,
<a href="core_geometries_multiLineStringGeometry.js.html#line55"
>line 55</a
>
</li>
</ul>
</dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li>
<a
href="https://github.com/M-Scott-Lassiter/jest-geojson/issues/12"
>https://github.com/M-Scott-Lassiter/jest-geojson/issues/12</a
>
</li>
</ul>
</dd>
</dl>
<div class="description usertext">
Verifies an object is a valid GeoJSON MultiLineString Geometry. This
geometry requires a 'type' property that must equal "MultiLineString", and a
'coordinates' property that contains an array of linestring arrays (i.e.
each linestring array containing at least two or more valid WGS-84 GeoJSON
coordinates). The coordinates may be an empty array, but may not be an array
of empty arrays. Foreign members are allowed with the exceptions thrown
below. If present, bounding boxes must be valid.
</div>
<h5>Example</h5>
<pre class="prettyprint"><code>const multiLineString = {
type: 'MultiLineString',
coordinates: [
[
[100.0, 0.0],
[101.0, 1.0]
],
[
[102.0, 2.0],
[103.0, 3.0]
]
]
}
const multiLineStringOneCoordinate = {
type: 'MultiLineString',
coordinates: [
[
[100.0, 0.0]
]
]
}
const point = {
type: 'Point',
coordinates: [100.0, 0.0]
}
const goodExample = multiLineStringGeometry(multiLineString) // true
const badExample1 = multiLineStringGeometry(point) // throws error
const badExample2 = multiLineStringGeometry(multiLineStringOneCoordinate) // throws error</code></pre>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>geometryObject</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last">
a GeoJSON MultiLineString Geometry object
</td>
</tr>
</tbody>
</table>
<h5>Throws:</h5>
<ul>
<li>
<dl>
<dt>
<div class="param-desc usertext">Argument not an object</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Must have a type property with value 'MultiLineString'
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Coordinates array must contain two or more valid GeoJSON
coordinates
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
</li>
<li>
<dl>
<dt>
<div class="param-desc usertext">
Forbidden from having a property 'geometry', 'properties',
or 'features'
</div>
</dt>
<dd></dd>
<dt>
<dl class="param-type">
<dt>Type</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>