mirror of
https://github.com/Viglino/ol-ext.git
synced 2025-12-08 19:26:29 +00:00
176 lines
5.0 KiB
HTML
176 lines
5.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<!--
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Copyright (c) 2015-2018 Jean-Marc VIGLINO,
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released under CeCILL-B (french BSD like) licence: http://www.cecill.info/
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-->
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<title>ol-ext: DFCI layer</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="description" content="DBPedia layer for OL3" />
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<meta name="keywords" content="ol3, layer, source, vector, wikipedia, dbpedia" />
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<!-- jQuery -->
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<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
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<!-- Openlayers -->
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@latest/ol.css" />
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<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/ol@latest/dist/ol.js"></script>
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<!-- ol-ext -->
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<link rel="stylesheet" href="../../dist/ol-ext.css" />
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<script type="text/javascript" src="../../dist/ol-ext.js"></script>
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<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
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<script src="https://unpkg.com/elm-pep"></script>
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<!-- Proj4 -->
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<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.3.14/proj4.js"></script>
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<link rel="stylesheet" href="../style.css" />
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<style>
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#map {
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position: fixed;
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top: 4.5em;
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bottom: 0;
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left: 0;
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right: 20em;
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z-index:-1;
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}
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.info {
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position: fixed;
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margin: 0;
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top: 4.5em;
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bottom: 0;
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right: 0;
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width: 20em;
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z-index:-1;
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}
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</style>
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</head>
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<body >
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<a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>
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<a href="../../index.html">
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<h1>ol-ext: DFCI layer</h1>
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</a>
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<div class="info">
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<p>
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The <i>ol/source/DFCI</i> display the
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<a href="http://www.entente-valabre.com/blog/224/51/retour-sur-le-carroyage-dfci">French DFCI grid</a>.
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<br/>
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It can display the 100 x 100 km, the 20 x 20 km, the 2 x 2 km grids and the 5 subdivisions of the 2km.
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</p>
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<p>
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The data can be loaded on <a href="https://www.data.gouv.fr/fr/datasets/carroyage-dfci-2-km/">data.gouv.fr</a> (7.3Mo zip),
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but why loading data you can calculate on the fly?
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</p>
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<p>
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The <i>ol/control/SearchDFCI</i> is a search tool to find the position of a DFCI grid index.
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</p>
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<p>
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Conevenient function can be used to handle DFCI indexes:
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<ul>
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<li>
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<i>ol/coordinate/fromDFCI</i> convert a DFCI index to coordinate
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</li>
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<li>
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<i>ol/coordinate/toDFCI</i> calculate the DFCI index giving a coordinate
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</li>
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<li>
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<i>ol/coordinate/validDFCI</i> and <i>validDFCICoord</i> allow you to test if an index or a coordinate
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is valid in the grid system.
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</li>
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</ul>
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</p>
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</div>
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<!-- DIV pour la carte -->
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<div id="map"></div>
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<script type="text/javascript">
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// The map
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var map = new ol.Map ({
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target: 'map',
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view: new ol.View ({
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zoom: 6,
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center: [273434, 5765953]
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}),
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layers: [ new ol.layer.Tile({ name:"OSM", source: new ol.source.OSM() })]
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});
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// DFCI source
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var vectorSource = new ol.source.DFCI({ });
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map.addLayer(new ol.layer.Vector({
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source: vectorSource,
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style: function(f, resolution) {
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return [
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new ol.style.Style({
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text: new ol.style.Text({
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text: f.get('id'),
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font: 'bold 9px sans-serif',
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backgroundFill: new ol.style.Fill ({ color:"rgba(255,255,255,.6)"}),
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overflow: true,
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placement: 'point'
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}),
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fill: new ol.style.Fill({
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color: [0,0,0,0]
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}),
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stroke: new ol.style.Stroke({
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width: .75,
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color: '#f00'
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})
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})
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]
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}
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}));
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// Serach control
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var search = new ol.control.SearchDFCI();
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map.addControl(search);
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var zoom = [7,10,12,14,15];
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search.on('select', function(e) {
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map.getView().animate({
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center : e.search.coordinate,
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zoom: zoom[Math.floor(e.search.name.length/2)]
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});
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});
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// Show info
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var popup = new ol.Overlay.Popup({ popupClass:'tooltips', offsetBox:15, positioning:'top-left' });
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map.addOverlay(popup);
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var select = new ol.interaction.Select({
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condition: ol.events.condition.click,
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toggleCondition: ol.events.condition.always
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});
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// One at a time
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select.on('select', function(e) {
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if (e.selected.length) {
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this.getFeatures().clear();
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this.getFeatures().push(e.selected[0]);
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}
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});
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map.addInteraction(select);
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var hover = new ol.interaction.Hover();
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map.addInteraction(hover);
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hover.on('hover', function(e){
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popup.show(
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e.coordinate,
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e.feature.get('id')
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+'<br/>'
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+ol.coordinate.toDFCI(e.coordinate, 3, map.getView().getProjection())
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);
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});
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hover.on('leave', function(e){ popup.hide() });
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/* test if coords are valid * /
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map.on('click', function(e) {
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console.log(e.coordinate, ol.coordinate.validDFCICoord(e.coordinate, map.getView().getProjection()));
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})
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/* */
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</script>
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</body>
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</html> |