terraformer

<!doctype html> <html> <head> <meta charset="utf-8"> <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"> <title>Terraformer</title> <link href="/assets/css/terraformer-02847305.css" media="screen" rel="stylesheet" type="text/css" /> </head> <body class="glossary glossary_index" id="wrap"> <nav> <ul> <li> <a href="/" class="">Terraformer</a> </li> <li> <a href="https://github.com/search?q=%40Esri+terraformer" class="">GitHub</a> </li> <li> <a href="/install" class="">Install</a> </li> <li> <a href="/" data-direction="active-top" class="toggle" id="close-drawer">Docs</a> </li> </ul> </nav> <div class="drawer" id="drawer"> <div class="doctoc drawer-nav drawer-top"> <div class="container"> <ul> <h3>Terraformer Documentation</h3> <li><a href="/getting-started/">Getting Started</a></li> <li><a href="/core/">Terraformer Core</a></li> <li class="indent"><a href="/core/#terraformerprimitive">Primitives</a></li> <li class="indent"><a href="/core/#terraformertools">Tools</a></li> <li><a href="/geostore/">GeoStores</a></li> <li class="indent"><a href="/geostore/data-stores/">DataStores</a></li> <li class="indent"><a href="/geostore/spatial-indexes/">Spatial Indexes</a></li> <li><a href="/arcgis-parser/">ArcGIS Parser</a></li> <li><a href="/wkt-parser/">WKT Parser</a></li> <li><a href="/glossary/">Glossary</a></li> </ul> </div> </div> </div> <main class="docs main-content" id="main-content"> <h1>Glossary</h1> <div class='semantic-toc'><ol><li><a href='#geojson'>GeoJSON</a><ol><li><a href='#coordinate'>Coordinate</a></li><li><a href='#coordinates'>Coordinates</a></li><li><a href='#bbox'>Bbox</a></li><li><a href='#geometry'>Geometry</a></li><li><a href='#point'>Point</a></li><li><a href='#multipoint'>MultiPoint</a></li><li><a href='#linestring'>LineString</a></li><li><a href='#multilinestring'>MultiLineString</a></li><li><a href='#polygon'>Polygon</a></li><li><a href='#multipolygon'>MultiPolygon</a></li><li><a href='#feature'>Feature</a></li><li><a href='#featurecollection'>FeatureCollection</a></li><li><a href='#geometrycollection'>GeometryCollection</a></li></ol></li><li><a href='#terraformer-primitives'>Terraformer Primitives</a><ol><li><a href='#point-primitive'>Point Primitive</a></li><li><a href='#multipoint-primitive'>MultiPoint Primitive</a></li><li><a href='#linestring-primitive'>LineString Primitive</a></li><li><a href='#multilinestring-primitive'>MultiLineString Primitive</a></li><li><a href='#polygon-primitive'>Polygon Primitive</a></li><li><a href='#multipolygon-primitive'>MultiPolygon Primitive</a></li><li><a href='#feature-primitive'>Feature Primitive</a></li><li><a href='#featurecollection-primitive'>FeatureCollection Primitive</a></li><li><a href='#geometrycollection-primitive'>GeometryCollection Primitive</a></li><li><a href='#circle-primitive'>Circle Primitive</a></li></ol></li><li><a href='#misc'>Misc</a><ol><li><a href='#envelope'>Envelope</a></li><li><a href='#convex-hull'>Convex Hull</a></div> <h2> <a id='geojson' class='section-link'></a> <a href='#geojson' class='header-link'>Link</a> GeoJSON <a href='#' class='back-to-top-link'>Back to Top</a> </h2> Terraformer uses the <a href="http://geojson.org/geojson-spec.html">GeoJSON specification</a> as a guide on how to format all representation of geographical data. <h3> <a id='coordinate' class='section-link'></a> <a href='#coordinate' class='header-link'>Link</a> Coordinate <a href='#' class='back-to-top-link'>Back to Top</a> </h3> A coordinate is the building block for the rest of the GeoJSON specification. It is represented by an array of <code>x</code>, <code>y</code> integers. The ordering of <code>x</code> and <code>y</code> are important, this means that when representing latitude and longitiude the order is <code>[longitude, latitude]</code>. <pre class="highlight javascript"><code>[-122.680, 45.528] </code></pre> <a href="http://geojson.org/geojson-spec.html#positions">GeoJSON Coordinate</a> <h3> <a id='coordinates' class='section-link'></a> <a href='#coordinates' class='header-link'>Link</a> Coordinates <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An array of <a href="#coordinate">Coordinate</a> objects that are used to define a line or polygon. <pre class="highlight javascript"><code>[ [-122.680, 45.58], [-123.230, 45.62], [-122.80, 45.22] ] </code></pre> <a href="http://geojson.org/geojson-spec.html#positions">GeoJSON Coordinate</a> <h3> <a id='bbox' class='section-link'></a> <a href='#bbox' class='header-link'>Link</a> Bbox <a href='#' class='back-to-top-link'>Back to Top</a> </h3> A GeoJSON bounding box is usually a 4-item array representing the rectangle that will contain the GeoJSON object. <pre class="highlight javascript"><code>[-122.70, 45.51, -122.64, 45.53] </code></pre> <a href="http://geojson.org/geojson-spec.html#bounding-boxes">GeoJSON BBox</a> <h3> <a id='geometry' class='section-link'></a> <a href='#geometry' class='header-link'>Link</a> Geometry <a href='#' class='back-to-top-link'>Back to Top</a> </h3> “GeoJSON Geometry” refers to any of the single geometry objects from the geoJSON specification like <a href="#point">Point</a>, <a href="#multiPoint">MultiPoint</a>, <a href="#linestring">LineString</a>, <a href="#multilinestring">MultiLineString</a>, <a href="#polygon">Polygon</a>, or <a href="#multipolygon">MultiPolygon</a>. <a href="http://geojson.org/geojson-spec.html#geometry-objects">GeoJSON Geometry</a> <h3> <a id='point' class='section-link'></a> <a href='#point' class='header-link'>Link</a> Point <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object representing a single point. <pre class="highlight json"><code>{ "type": "Point", "coordinates": [-105.01621, 39.57422] } </code></pre> <a href="http://geojson.org/geojson-spec.html#point">GeoJSON Point</a> <h3> <a id='multipoint' class='section-link'></a> <a href='#multipoint' class='header-link'>Link</a> MultiPoint <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object representing multiple points as a single coordinate array. <pre class="highlight json"><code>{ "type": "MultiPoint", "coordinates": [ [-105.01, 39.57], [-80.66, 35.05] ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#multipoint">GeoJSON MultiPoint</a> <h3> <a id='linestring' class='section-link'></a> <a href='#linestring' class='header-link'>Link</a> LineString <a href='#' class='back-to-top-link'>Back to Top</a> </h3> A series of coordinates that form a line. <pre class="highlight json"><code>{ "type": "LineString", "coordinates": [ [-101.5, 39.662], [-101.75, 39.2415], [-101.64, 39.2415], ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#linestring">GeoJSON LineString</a> <h3> <a id='multilinestring' class='section-link'></a> <a href='#multilinestring' class='header-link'>Link</a> MultiLineString <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object that represents multiple linestrings in a single object. <pre class="highlight json"><code>{ "type": "MultiLineString", "coordinates": [ [ [-101.5, 39.662], [-101.75, 39.2415], [-101.23, 39.2415], [-101.749, 39.7984], [-101.5, 39.011] ],[ [-99.23, 38.6605], [-99.56, 38.727], [-99.25, 38.018] ],[ [-98.499, 38.913], [-98.499, 38.913], [-98.38, 38.15], [-97.5, 38.629] ] ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#multilinestring">GeoJSON MultiLineString</a> <h3> <a id='polygon' class='section-link'></a> <a href='#polygon' class='header-link'>Link</a> Polygon <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An array of coordinates defining a polygon. <pre class="highlight json"><code>{ "type": "Polygon", "coordinates": [ [ [41.83, 71.01], [56.95, 33.75], [21.79, 36.56], [41.83, 71.01] ] ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#polygon">GeoJSON Polygon</a> <h3> <a id='multipolygon' class='section-link'></a> <a href='#multipolygon' class='header-link'>Link</a> MultiPolygon <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object that represents multiple polygons in a single object. <pre class="highlight json"><code>{ "type": "MultiPolygon", "coordinates": [ [ [ [102.0, 2.0], [103.0, 2.0], [103.0, 3.0], [102.0, 3.0], [102.0, 2.0] ] ], [ [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ] ] ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#multipolygon">GeoJSON MultiPolygon</a> <h3> <a id='feature' class='section-link'></a> <a href='#feature' class='header-link'>Link</a> Feature <a href='#' class='back-to-top-link'>Back to Top</a> </h3> GeoJSON Features combine a <a href="#geometry">Geometry</a> object with a unique identifier and set of metadata. <pre class="highlight json"><code>{ "type": "Feature", "id": "stadium", "geometry": { "type": "Point", "coordinates": [-104.99404, 39.75621] }, "properties": { "name": "Coors Field", "amenity": "Baseball Stadium", "popupContent": "This is where the Rockies play!" } } </code></pre> <a href="http://geojson.org/geojson-spec.html#feature-objects">Feature</a> <h3> <a id='featurecollection' class='section-link'></a> <a href='#featurecollection' class='header-link'>Link</a> FeatureCollection <a href='#' class='back-to-top-link'>Back to Top</a> </h3> Contains multiple <a href="#feature">Features</a> objects in a single object. <pre class="highlight json"><code>{ "type": "FeatureCollection", "features": [ { "type": "Feature", "geometry": { "type": "Point", "coordinates": [-80.83775386582222, 35.24980190252168] }, "properties": { "name": "DOUBLE OAKS CENTER", "address": "1326 WOODWARD AV" } }, { "type": "Feature", "geometry": { "type": "Point", "coordinates": [-80.83827000459532, 35.25674709224663] }, "properties": { "name": "DOUBLE OAKS NEIGHBORHOOD PARK", "address": "2605 DOUBLE OAKS RD" } } ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#feature-collection-objects">FeatureCollection</a> <h3> <a id='geometrycollection' class='section-link'></a> <a href='#geometrycollection' class='header-link'>Link</a> GeometryCollection <a href='#' class='back-to-top-link'>Back to Top</a> </h3> Contains multiple <a href="#geometry">Geometry</a> objects in a single object. <pre class="highlight json"><code>{ "type": "GeometryCollection", "geometries": [{ "type": "Polygon", "coordinates": [ [ [41.83, 71.01], [56.95, 33.75], [21.79, 36.56], [41.83, 71.01] ] ] },{ "type": "MultiPoint", "coordinates": [ [100, 0], [45, -122] ] } ] } </code></pre> <a href="http://geojson.org/geojson-spec.html#geometry-collection">GeometryCollection</a> <h2> <a id='terraformer-primitives' class='section-link'></a> <a href='#terraformer-primitives' class='header-link'>Link</a> Terraformer Primitives <a href='#' class='back-to-top-link'>Back to Top</a> </h2> <a href="/documentation/core/#Primitive">Terraformer Primitives</a> wrap their <a href="#geojson">GeoJSON</a> counterparts to provide extra functionality. <h3> <a id='point-primitive' class='section-link'></a> <a href='#point-primitive' class='header-link'>Link</a> Point Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#point">GeoJSON Point</a> <a href="/documentation/core/#terraformerpoint">Point</a> <h3> <a id='multipoint-primitive' class='section-link'></a> <a href='#multipoint-primitive' class='header-link'>Link</a> MultiPoint Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#multipoint">GeoJSON MultiPoint</a> <a href="/documentation/core/#terraformermultipoint">MultiPoint</a> <h3> <a id='linestring-primitive' class='section-link'></a> <a href='#linestring-primitive' class='header-link'>Link</a> LineString Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#lineString">GeoJSON LineString</a> <a href="/documentation/core/#terraformerlinestring">LineString</a> <h3> <a id='multilinestring-primitive' class='section-link'></a> <a href='#multilinestring-primitive' class='header-link'>Link</a> MultiLineString Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#multilinestring">GeoJSON MultiLineString</a> <a href="/documentation/core/#terraformermultilinestring">MultiLineString</a> <h3> <a id='polygon-primitive' class='section-link'></a> <a href='#polygon-primitive' class='header-link'>Link</a> Polygon Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#polygon">GeoJSON Polygon</a> <a href="/documentation/core/#terraformerpolygon">Polygon</a> <h3> <a id='multipolygon-primitive' class='section-link'></a> <a href='#multipolygon-primitive' class='header-link'>Link</a> MultiPolygon Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#multipolygon">GeoJSON MultiPolygon</a> <a href="/documentation/core/#terraformermultipolygon">MultiPolygon</a> <h3> <a id='feature-primitive' class='section-link'></a> <a href='#feature-primitive' class='header-link'>Link</a> Feature Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#terraformerfeature">GeoJSON Feature</a> <a href="/documentation/core/#feature">Feature</a> <h3> <a id='featurecollection-primitive' class='section-link'></a> <a href='#featurecollection-primitive' class='header-link'>Link</a> FeatureCollection Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#featurecollection">GeoJSON FeatureCollection</a> <a href="/documentation/core/#terraformerfeaturecollection">FeatureCollection</a> <h3> <a id='geometrycollection-primitive' class='section-link'></a> <a href='#geometrycollection-primitive' class='header-link'>Link</a> GeometryCollection Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object respresenting a <a href="#geometrycollection">GeoJSON GeometryCollection</a> <a href="/documentation/core/#terraformergeometrycollection">GeometryCollection</a> <h3> <a id='circle-primitive' class='section-link'></a> <a href='#circle-primitive' class='header-link'>Link</a> Circle Primitive <a href='#' class='back-to-top-link'>Back to Top</a> </h3> An object representing a <a href="#feature">GeoJSON Feature</a> which contains a polygonal representation of a circle. <a href="/documentation/core/#terraformercircle">Circle</a> <h2> <a id='misc' class='section-link'></a> <a href='#misc' class='header-link'>Link</a> Misc <a href='#' class='back-to-top-link'>Back to Top</a> </h2><h3> <a id='envelope' class='section-link'></a> <a href='#envelope' class='header-link'>Link</a> Envelope <a href='#' class='back-to-top-link'>Back to Top</a> </h3> Envelopes are a common structure for indexes like Terraformer.RTree. <pre class="highlight javascript"><code>{ x: 1, y: 1, w: 15 h: 15 } </code></pre> <h3> <a id='convex-hull' class='section-link'></a> <a href='#convex-hull' class='header-link'>Link</a> Convex Hull <a href='#' class='back-to-top-link'>Back to Top</a> </h3> Convex <pre class="highlight javascript"><code>{ x: 1, y: 1, w: 15 h: 15 } </code></pre> </main> <footer> Terraformer is an open source project from the <a href="http://pdx.esri.com/">Esri Portland R&D Center</a> </footer> <script src="/assets/javascripts/modernizr.custom-cadc78a2.js" type="text/javascript"></script> <script src="/assets/javascripts/classie-b6db1f70.js" type="text/javascript"></script> <script src="/assets/javascripts/drawer-3a1490eb.js" type="text/javascript"></script> </body> </html>