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| author | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
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| committer | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
| commit | ea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch) | |
| tree | af67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/examples/layer-opacity.html | |
| parent | 59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff) | |
| download | postrunner-fb1989bda5d3e0a5472ba7644d57cae197733a8f.zip | |
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
Diffstat (limited to 'misc/openlayers/examples/layer-opacity.html')
| -rw-r--r-- | misc/openlayers/examples/layer-opacity.html | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/misc/openlayers/examples/layer-opacity.html b/misc/openlayers/examples/layer-opacity.html new file mode 100644 index 0000000..555cc95 --- /dev/null +++ b/misc/openlayers/examples/layer-opacity.html @@ -0,0 +1,95 @@ +<!DOCTYPE html> +<html> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> + <meta name="apple-mobile-web-app-capable" content="yes"> + <title>OpenLayers Layer Opacity Example</title> + <link rel="stylesheet" href="../theme/default/style.css" type="text/css"> + <link rel="stylesheet" href="style.css" type="text/css"> + <style type="text/css"> + body { + font-family: sans-serif; + } + p { + width: 512px; + } + a { + text-decoration: none; + color: black; + font-weight: bold; + font-size: 1.1em; + } + #opacity { + padding: 0; + text-align: center; + width: 2em; + font-family: sans-serif; + background: transparent; + color: black; + border: 0; + } + p.note { + font-style: italic; + font-size: 0.8em; + } + </style> + <script src="../lib/OpenLayers.js"></script> + <script type="text/javascript"> + var map = null; + var shade = null; + var maxOpacity = 0.9; + var minOpacity = 0.1; + function changeOpacity(byOpacity) { + var newOpacity = (parseFloat(OpenLayers.Util.getElement('opacity').value) + byOpacity).toFixed(1); + newOpacity = Math.min(maxOpacity, + Math.max(minOpacity, newOpacity)); + OpenLayers.Util.getElement('opacity').value = newOpacity; + shade.setOpacity(newOpacity); + } + function init(){ + var options = { + maxExtent: new OpenLayers.Bounds(-110.994, 45.885, -110.950, 45.929), + maxResolution: "auto" + }; + map = new OpenLayers.Map('map', options); + var drg = new OpenLayers.Layer.WMS("Topo Maps", + "http://terraservice.net/ogcmap.ashx", + {layers: "DRG"}); + shade = new OpenLayers.Layer.WMS("Shaded Relief", + "http://gisdata.usgs.gov/wmsconnector/com.esri.wms.Esrimap?ServiceName=USGS_EDC_Elev_NED_3", + {layers: "HR-NED.IMAGE", reaspect: "false", transparent: 'true'}, + {isBaseLayer: false, opacity: 0.3}); + map.addLayers([drg, shade]); + map.addControl(new OpenLayers.Control.LayerSwitcher()); + map.zoomToMaxExtent(); + } + </script> + </head> + <body onload="init()"> + <h1 id="title">Layer Opacity Example</h1> + + <div id="tags"> + opacity, transparent, transparency, light + </div> + + <p id="shortdesc"> + Demonstrate a change in the opacity for an overlay layer. + </p> + + <div id="map" class="smallmap"></div> + + <div id="docs"> + <p> + Note that if you also have the setOpacity method defined on the Layer + class, you can tweak the layer opacity after it has been added to the map. + </p> + <p>Opacity: + <a title="decrease opacity" href="javascript: changeOpacity(-0.1);"><<</a> + <input id="opacity" type="text" value="0.3" size="3" disabled="true" /> + <a title="increase opacity" href="javascript: changeOpacity(0.1);">>></a> + </p> + <p class="note">IE users: Wait until the shade layer has finished loading to try this.</p> + </div> + </body> +</html> |