mirror of
https://github.com/Viglino/ol-ext.git
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112 lines
3.7 KiB
HTML
112 lines
3.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>ol-ext: DrawHole interaction</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="description" content="an OL3 interaction to draw holes in polygons" />
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<meta name="keywords" content="ol3, interaction, draw, hole, polygon, donut" />
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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://openlayers.org/en/latest/css/ol.css" />
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<script type="text/javascript" src="https://openlayers.org/en/latest/build/ol.js"></script>
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<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL,Object.assign"></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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</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: DrawHole interaction</h1>
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</a>
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<div class="info">
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<b>ol.interaction.DrawHole</b> is an interaction to draw holes in a polygon.
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<br/>You can limit the interaction to a set layer (<i>layers</i> option) or a set of feature (<i>features</i> options).
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<p>
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NB: The interaction prevents to add points outside the polygon but
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does not ensure the result polygon is consistent.
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<br/>
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Non convexe polygons may result in drawing holes that cross the frontiers.
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</p>
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</div>
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<!-- Map div -->
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<div id="map" style="width:600px; height:400px;"></div>
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<div class="options" >
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<h2>Options:</h2>
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<ul>
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<input id="draw" type="radio" name="toggle" checked="checked" onchange="toggle(!$(this).prop('checked'))" />
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<label for="draw"> draw polygon</label>
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<br/>
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<input id="drawhole" type="radio" name="toggle" onchange="toggle($(this).prop('checked'))" />
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<label for="drawhole"> draw hole</label>
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</ul>
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</div>
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<script type="text/javascript">
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// Layers
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var layers = [
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new ol.layer.Tile({
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title:'terrain-background',
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source: new ol.source.Stamen({ layer: 'terrain' })
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})
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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: 5,
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center: [261720, 5951081]
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}),
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controls: ol.control.defaults({ "attribution": false }),
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layers: layers
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});
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// New vector layer
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var vector = new ol.layer.Vector({
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name: 'Vecteur',
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source: new ol.source.Vector()
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})
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map.addLayer(vector);
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vector.getSource().addFeature(new ol.Feature(new ol.geom.Polygon([[[34243, 6305749], [-288626, 5757848], [210354, 5576845], [34243, 6305749]]])));
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/*
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var select = new ol.interaction.Select();
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function setSelect(b) {
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select.setActive(b);
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draw.setActive(!b);
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drawhole.setActive(false);
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}
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map.addInteraction(select)
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*/
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var draw = new ol.interaction.Draw ({
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source: vector.getSource(),
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type:'Polygon'
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});
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map.addInteraction(draw);
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var drawhole = new ol.interaction.DrawHole ({
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layers: [ vector ]
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});
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drawhole.setActive(false);
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map.addInteraction(drawhole);
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function toggle(active) {
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draw.setActive(!active);
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drawhole.setActive(active);
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}
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</script>
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</body>
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</html> |