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| author | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
|---|---|---|
| committer | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
| commit | ea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch) | |
| tree | af67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/examples/mousewheel-interval.html | |
| parent | 59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff) | |
| download | postrunner-ea346a785dc1b3f7c156f6fc33da634e1f1a627b.zip | |
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
Diffstat (limited to 'misc/openlayers/examples/mousewheel-interval.html')
| -rw-r--r-- | misc/openlayers/examples/mousewheel-interval.html | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/misc/openlayers/examples/mousewheel-interval.html b/misc/openlayers/examples/mousewheel-interval.html new file mode 100644 index 0000000..ce8d6a6 --- /dev/null +++ b/misc/openlayers/examples/mousewheel-interval.html @@ -0,0 +1,63 @@ +<!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 Mousewheel Interval Example</title> + <link rel="stylesheet" href="../theme/default/style.css" type="text/css"> + <link rel="stylesheet" href="style.css" type="text/css"> + <script src="../lib/OpenLayers.js"></script> + <script type="text/javascript"> + var map, layer; + + function setCumulative() { + var nav = map.getControlsByClass("OpenLayers.Control.Navigation")[0]; + var cumulative = document.getElementById("cumulative"); + nav.handlers.wheel.cumulative = cumulative.checked; + } + + function init(){ + map = new OpenLayers.Map( 'map', {controls: [ + new OpenLayers.Control.Navigation( + {mouseWheelOptions: {interval: 100}} + ), + new OpenLayers.Control.PanZoom(), + new OpenLayers.Control.ArgParser(), + new OpenLayers.Control.Attribution() + ]} ); + layer = new OpenLayers.Layer.WMS( "OpenLayers WMS", + "http://vmap0.tiles.osgeo.org/wms/vmap0", + {layers: 'basic'} ); + map.addLayer(layer); + map.zoomToMaxExtent(); + } + </script> + </head> + <body onload="init()"> + <h1 id="title">OpenLayers Mousewheel Interval Example</h1> + + <div id="tags"> + performance, zoom by wheel + </div> + + <div id="shortdesc">Let OpenLayers send less tile requests to the server when wheel-zooming.</div> + + <div id="map" class="smallmap"></div> + + <div id="docs"> + <p>This example shows how to configure the Navigation control to use + the mousewheel in a less server resource consuming way: as long as you + spin the mousewheel, no request will be sent to the server. Instead, + the zoomlevel delta will be recorded. After a delay (in this example + 100ms), a zoom action with the cumulated delta will be performed.</p> + <div> + <input id="cumulative" type="checkbox" checked="checked" + onchange="setCumulative()"/> + <label for="cumulative">Cumulative mode. If this mode is deactivated, + only one zoom event will be performed after the delay.</label> + </div> + + </div> + </body> +</html> |