94 lines
2.2 KiB
JavaScript
94 lines
2.2 KiB
JavaScript
goog.require('ol.Map');
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goog.require('ol.View');
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goog.require('ol.geom.Polygon');
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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.Circle');
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goog.require('ol.style.Fill');
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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({wrapX: false});
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var vector = new ol.layer.Vector({
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source: source,
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style: new ol.style.Style({
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fill: new ol.style.Fill({
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color: 'rgba(255, 255, 255, 0.2)'
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}),
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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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image: new ol.style.Circle({
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radius: 7,
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fill: new ol.style.Fill({
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color: '#ffcc33'
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})
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})
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})
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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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var typeSelect = document.getElementById('type');
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var draw; // global so we can remove it later
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function addInteraction() {
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var value = typeSelect.value;
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if (value !== 'None') {
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var geometryFunction, maxPoints;
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if (value === 'Square') {
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value = 'Circle';
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geometryFunction = ol.interaction.Draw.createRegularPolygon(4);
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} else if (value === 'Box') {
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value = 'LineString';
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maxPoints = 2;
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geometryFunction = function(coordinates, geometry) {
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if (!geometry) {
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geometry = new ol.geom.Polygon(null);
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}
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var start = coordinates[0];
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var end = coordinates[1];
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geometry.setCoordinates([
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[start, [start[0], end[1]], end, [end[0], start[1]], start]
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]);
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return geometry;
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};
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}
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draw = new ol.interaction.Draw({
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source: source,
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type: /** @type {ol.geom.GeometryType} */ (value),
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geometryFunction: geometryFunction,
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maxPoints: maxPoints
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});
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map.addInteraction(draw);
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}
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}
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/**
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* Handle change event.
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*/
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typeSelect.onchange = function() {
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map.removeInteraction(draw);
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addInteraction();
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};
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addInteraction();
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