mirror of
https://github.com/Viglino/ol-ext.git
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260 lines
9.7 KiB
HTML
260 lines
9.7 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: Transform 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="transform interaction for OL3" />
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<meta name="keywords" content="ol3, vector, transform, rotate, scale, stretch" />
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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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<!-- FontAwesome -->
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<link rel="stylesheet" href="https://rawgit.com/FortAwesome/Font-Awesome/master/css/font-awesome.min.css" type="text/css" />
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<!-- Openlayers -->
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<link rel="stylesheet" href="https://openlayers.org/en/master/css/ol.css" />
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<script type="text/javascript" src="https://openlayers.org/en/master/build/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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</head>
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<body >
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<a href="https://github.com/Viglino/ol3-ext"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/38ef81f8aca64bb9a64448d0d70f1308ef5341ab/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"></a>
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<a href="../../index.html">
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<h1>ol-ext: Transform interaction</h1>
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</a>
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<div class="info">
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<!-- force font to load -->
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<i class="fa fa-rotate-left" style="position:absolute; top:-1000px;"></i>
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<b>ol.interaction.Transform</b> is an interaction to transform features (scale, translate, rotate).
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Handles are drawn on the map to manipulate the features
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<ul><li>
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Properties can be set to select transforming operations.
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</li><li>
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Handles can be styled with ol.style.
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</li><li>
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ol.event are thrown to control the transformation (to set an angle propertie on point features to use with ol.style for example)
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</li>
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</li></ul>
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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><li>
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<input id="style" type="checkbox" onchange="setHandleStyle()" /><label for="style"> styles transform handles (using fontawesome)</label>
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</li><li>
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<input id="scale" type="checkbox" onchange="setPropertie(this.id);" checked="checked" /><label for="scale"> enable scale</label>
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</li><li>
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<input id="stretch" type="checkbox" onchange="setPropertie(this.id);" checked="checked" /><label for="stretch"> enable stretch</label>
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</li><li>
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<input id="rotate" type="checkbox" onchange="setPropertie(this.id);" checked="checked" /><label for="rotate"> enable rotate</label>
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</li><li>
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<input id="translate" type="checkbox" onchange="setPropertie(this.id);" checked="checked" /><label for="translate"> enable translate</label>
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</li><li>
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<input id="translateFeature" type="checkbox" onchange="setPropertie(this.id);" /><label for="translateFeature"> translate when click on feature</label>
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</li><li>
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<input id="keepAspectRatio" type="checkbox" onchange="setAspectRatio(this.id);" /><label for="keepAspectRatio"> force keepAspectRatio (default use <i>Shift</i>)</label>
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</li><li>
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<hr/>
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Use <i>Shift</i> key to preserve proportions when scaling (see keepAspectRatio).
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<br />
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Use <i>Ctrl</i> key to modify the center when scaling.
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</li></ul>
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<div style="background:white; padding:0 0.45em;"><span id="info"></span> </div>
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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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name: "Natural Earth",
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minResolution: 306,
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source: new ol.source.XYZ(
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{ url: 'https://{a-d}.tiles.mapbox.com/v3/mapbox.natural-earth-hypso-bathy/{z}/{x}/{y}.png',
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attributions: [new ol.Attribution({ html: '© <a href="https://www.mapbox.com/map-feedback/">Mapbox</a> ' })]
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})
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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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// Style
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function getStyle(feature)
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{
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return [ new ol.style.Style(
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{ image: new ol.style.RegularShape({
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fill: new ol.style.Fill({color: [0,0,255,0.4]}),
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stroke: new ol.style.Stroke({color: [0,0,255,1],width: 1}),
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radius: 10,
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points: 3,
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angle: feature.get('angle')||0
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}),
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fill: new ol.style.Fill({color: [0,0,255,0.4]}),
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stroke: new ol.style.Stroke({color: [0,0,255,1],width: 1})
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})];
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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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style: getStyle
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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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vector.getSource().addFeature(new ol.Feature(new ol.geom.LineString([[406033, 5664901], [689767, 5718712], [699551, 6149206], [425601, 6183449]])));
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vector.getSource().addFeature(new ol.Feature(new ol.geom.Point( [269914, 6248592])));
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/** Style the transform handles for the current interaction
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*/
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function setHandleStyle()
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{ if (!interaction instanceof ol.interaction.Transform) return;
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if ($("#style").prop('checked'))
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{ // Style the rotate handle
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var circle = new ol.style.RegularShape({
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fill: new ol.style.Fill({color:[255,255,255,0.01]}),
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stroke: new ol.style.Stroke({width:1, color:[0,0,0,0.01]}),
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radius: 8,
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points: 10
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});
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interaction.setStyle ('rotate',
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new ol.style.Style(
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{ text: new ol.style.Text (
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{ text:'\uf0e2',
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font:"16px Fontawesome",
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textAlign: "left",
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fill:new ol.style.Fill({color:'red'})
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}),
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image: circle
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}));
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// Center of rotation
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interaction.setStyle ('rotate0',
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new ol.style.Style(
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{ text: new ol.style.Text (
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{ text:'\uf0e2',
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font:"20px Fontawesome",
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fill: new ol.style.Fill({ color:[255,255,255,0.8] }),
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stroke: new ol.style.Stroke({ width:2, color:'red' })
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}),
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}));
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// Style the move handle
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interaction.setStyle('translate',
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new ol.style.Style(
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{ text: new ol.style.Text (
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{ text:'\uf047',
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font:"20px Fontawesome",
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fill: new ol.style.Fill({ color:[255,255,255,0.8] }),
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stroke: new ol.style.Stroke({ width:2, color:'red' })
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})
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}));
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// Style the strech handles
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/* uncomment to style * /
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interaction.setStyle ('scaleh1',
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new ol.style.Style(
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{ text: new ol.style.Text (
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{ text:'\uf07d',
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font:"bold 20px Fontawesome",
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fill: new ol.style.Fill({ color:[255,255,255,0.8] }),
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stroke: new ol.style.Stroke({ width:2, color:'red' })
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})
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}));
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interaction.style.scaleh3 = interaction.style.scaleh1;
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interaction.setStyle('scalev',
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new ol.style.Style(
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{ text: new ol.style.Text (
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{ text:'\uf07e',
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font:"bold 20px Fontawesome",
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fill: new ol.style.Fill({ color:[255,255,255,0.8] }),
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stroke: new ol.style.Stroke({ width:2, color:'red' })
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})
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}));
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interaction.style.scalev2 = interaction.style.scalev;
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/**/
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}
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else
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{ interaction.setDefaultStyle ();
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}
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// Refresh
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interaction.set('translate', interaction.get('translate'));
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};
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/** Set properties
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*/
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function setPropertie (p)
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{ interaction.set(p, $("#"+p).prop('checked'));
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if (!$("#scale").prop("checked")) $("#stretch").prop('disabled', true);
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else $("#stretch").prop('disabled', false);
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}
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function setAspectRatio (p)
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{ if ($("#"+p).prop('checked')) interaction.set("keepAspectRatio", ol.events.condition.always);
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else interaction.set("keepAspectRatio", function(e){ return e.originalEvent.shiftKey });
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}
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var interaction = new ol.interaction.Transform (
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{ translateFeature: $("#translateFeature").prop('checked'),
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scale: $("#scale").prop('checked'),
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rotate: $("#rotate").prop('checked'),
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keepAspectRatio: $("#keepAspectRatio").prop('checked') ? ol.events.condition.always : undefined,
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translate: $("#translate").prop('checked'),
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stretch: $("#stretch").prop('checked'),
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});
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map.addInteraction(interaction);
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// Style handles
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setHandleStyle();
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// Events handlers
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var startangle = 0;
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var d=[0,0];
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interaction.on (['rotatestart','translatestart'], function(e)
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{ // Rotation
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startangle = e.feature.get('angle')||0;
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// Translation
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d=[0,0];
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});
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interaction.on('rotating', function (e)
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{ $('#info').text("rotate: "+((e.angle*180/Math.PI -180)%360+180).toFixed(2));
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// Set angle attribute to be used on style !
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e.feature.set('angle', startangle - e.angle);
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});
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interaction.on('translating', function (e)
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{ d[0]+=e.delta[0];
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d[1]+=e.delta[1];
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$('#info').text("translate: "+d[0].toFixed(2)+","+d[1].toFixed(2));
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});
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interaction.on('scaling', function (e)
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{ $('#info').text("scale: "+e.scale[0].toFixed(2)+","+e.scale[1].toFixed(2));
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});
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interaction.on(['rotateend', 'translateend', 'scaleend'], function (e) { $('#info').text(""); });
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</script>
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</body>
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</html> |