68 lines
1.5 KiB
JavaScript
68 lines
1.5 KiB
JavaScript
goog.require('ol.Map');
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goog.require('ol.View');
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goog.require('ol.geom.Point');
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goog.require('ol.interaction.Draw');
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goog.require('ol.layer.Tile');
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goog.require('ol.layer.Vector');
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goog.require('ol.source.MapQuest');
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goog.require('ol.source.Vector');
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goog.require('ol.style.Icon');
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goog.require('ol.style.Stroke');
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goog.require('ol.style.Style');
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var raster = new ol.layer.Tile({
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source: new ol.source.MapQuest({layer: 'sat'})
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});
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var source = new ol.source.Vector();
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var styleFunction = function(feature) {
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var geometry = feature.getGeometry();
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var styles = [
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// linestring
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new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: '#ffcc33',
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width: 2
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})
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})
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];
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geometry.forEachSegment(function(start, end) {
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var dx = end[0] - start[0];
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var dy = end[1] - start[1];
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var rotation = Math.atan2(dy, dx);
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// arrows
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styles.push(new ol.style.Style({
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geometry: new ol.geom.Point(end),
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image: new ol.style.Icon({
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src: 'data/arrow.png',
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anchor: [0.75, 0.5],
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rotateWithView: false,
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rotation: -rotation
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})
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}));
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});
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return styles;
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};
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var vector = new ol.layer.Vector({
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source: source,
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style: styleFunction
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});
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var map = new ol.Map({
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layers: [raster, vector],
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renderer: common.getRendererFromQueryString(),
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target: 'map',
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view: new ol.View({
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center: [-11000000, 4600000],
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zoom: 4
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})
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});
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map.addInteraction(new ol.interaction.Draw({
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source: source,
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type: /** @type {ol.geom.GeometryType} */ ('LineString')
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}));
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