mirror of
https://github.com/Viglino/ol-ext.git
synced 2026-01-18 17:11:52 +00:00
150 lines
5.1 KiB
HTML
150 lines
5.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<!--
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Copyright (c) 2016-2018 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: Halftone map</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="description" content="A map mades of a set of Lego bricks." />
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<meta name="keywords" content="ol3, filter, lego, brick" />
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<link rel="stylesheet" href="../style.css" />
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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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<style>
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#map {
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position: absolute;
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top:8em;
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left:0;
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right:0;
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bottom:0;
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}
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.options {
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position:absolute;
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right:0;
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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: Halftone map</h1>
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</a>
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<div class="info">
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<i>ol/filter/Halftone</i> renders as <a href="https://en.wikipedia.org/wiki/Halftone">halftone map</a>.
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</div>
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<!-- Map div -->
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<div id="map"></div>
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<div class="options" >
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<h2>Options:</h2>
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<ul>
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<li>
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<label>size:</label>
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<select id="size" onchange="filter.set('size',this.value)">
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<option value="3">3</option>
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<option value="5" selected="selected">5</option>
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<option value="8">8</option>
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</select>
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</li>
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<li>
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<label>
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<input type="checkbox" checked="checked" onchange="filter.setActive(this.checked)" />
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active
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</label>
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</li>
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<li>
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<label>channel:</label>
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<select id="color" onchange="filter.set('channel',this.value)">
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<option value="">intensity</option>
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<option value="r">red</option>
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<option value="g">green</option>
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<option value="b">blue</option>
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</select>
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</li>
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<li>
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<label>color:</label>
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<select id="color" onchange="filter.set('color',this.value)">
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<option value="">black</option>
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<option value="#800">red</option>
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<option value="#080">green</option>
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<option value="#008">blue</option>
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</select>
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</li>
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<li>
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<label>layer:</label>
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<select id="layer" onchange="setLayer()">
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</select>
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</li>
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</ul>
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</div>
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<script type="text/javascript">
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ol.layer.Geoportail.register("ELEVATION.ELEVATIONGRIDCOVERAGE.SHADOW", {"layer":"ELEVATION.ELEVATIONGRIDCOVERAGE.SHADOW","theme":"altimetrie","desc":"Couche d'ombrage calculée à partir des données altimétriques de l'IGN permettant de mieux appréhender le relief. L'estompage proposé est réalisé à partir des données MNT BDAlti au pas de 25m avec deux soleils : un au nord-est de hauteur 45°, l'autre zénithal.","server":"https://data.geopf.fr/wmts","bbox":[-63.187,-21.4069,55.8884,50.9218],"format":"image/png","minZoom":0,"maxZoom":15,"originators":{"Geoservices":{"attribution":"Géoservices","href":"https://geoservices.ign.fr/"}},"queryable":false,"style":"estompage_grayscale","tilematrix":"PM","title":"Estompage","legend":["https://data.geopf.fr/annexes/ressources/legendes/LEGEND.jpg"]});
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var layers = [
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new ol.layer.Geoportail({ layer: 'GEOGRAPHICALGRIDSYSTEMS.PLANIGNV2', visible: false, permalink:'map' }),
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//new ol.layer.Geoportail({ layer: 'ELEVATION.ELEVATIONGRIDCOVERAGE.SHADOW', visible: false, permalink:'shadow' }),
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new ol.layer.Geoportail({ layer: 'TRANSPORTNETWORKS.ROADS', visible: false, permalink:'shadow' }),
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new ol.layer.Geoportail({ layer: 'ORTHOIMAGERY.ORTHOPHOTOS', visible: true, permalink:'ortho' })
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]
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// enhance opacity
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layers[1].getSource().setTileLoadFunction(ol.ext.imageLoader.pixelTransform(function(p, i) {
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p[i] = p[i+1] = p[i+2] = (255 - p[i+3] * 1.5);
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p[i+3] = 255;
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}));
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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: [219733, 5880370]
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}),
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layers: layers
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});
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var plink = new ol.control.Permalink({ visible: false });
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map.addControl(plink);
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layers.forEach(function(l, i) {
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$('<option>').text(l.get('title'))
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.val(i)
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.prop('selected', l.getVisible())
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.appendTo('#layer');
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console.log(l.getVisible())
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})
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function setLayer () {
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var n = parseInt($('#layer').val())
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for (var i=0; i<layers.length; i++) {
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layers[i].setVisible(i===n);
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};
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}
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// setLayer();
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// Enhance filter
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var filter = new ol.filter.Halftone({ size: $("#size").val() });
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layers.forEach(function(l) { l.addFilter(filter); });
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</script>
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</body>
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</html> |