48 lines
1.5 KiB
JavaScript
48 lines
1.5 KiB
JavaScript
goog.require('ol.Coordinate');
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goog.require('ol.Map');
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goog.require('ol.RendererHint');
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goog.require('ol.View2D');
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goog.require('ol.layer.TileLayer');
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goog.require('ol.source.MapQuestOpenAerial');
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var layer = new ol.layer.TileLayer({
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source: new ol.source.MapQuestOpenAerial()
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});
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var map = new ol.Map({
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layers: [layer],
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renderer: ol.RendererHint.WEBGL,
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target: 'map',
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view: new ol.View2D({
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center: new ol.Coordinate(0, 0),
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zoom: 2
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})
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});
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var increaseBrightness = document.getElementById('increase-brightness');
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increaseBrightness.addEventListener('click', function() {
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layer.setBrightness(layer.getBrightness() + 0.125);
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}, false);
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var resetBrightness = document.getElementById('reset-brightness');
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resetBrightness.addEventListener('click', function() {
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layer.setBrightness(0);
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}, false);
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var decreaseBrightness = document.getElementById('decrease-brightness');
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decreaseBrightness.addEventListener('click', function() {
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layer.setBrightness(layer.getBrightness() - 0.125);
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}, false);
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var increaseContrast = document.getElementById('increase-contrast');
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increaseContrast.addEventListener('click', function() {
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layer.setContrast(layer.getContrast() + 0.125);
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}, false);
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var resetContrast = document.getElementById('reset-contrast');
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resetContrast.addEventListener('click', function() {
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layer.setContrast(1);
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}, false);
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var decreaseContrast = document.getElementById('decrease-contrast');
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decreaseContrast.addEventListener('click', function() {
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layer.setContrast(layer.getContrast() - 0.125);
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}, false);
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