【发布时间】:2010-12-21 04:50:00
【问题描述】:
【问题讨论】:
标签: map mapping openlayers
【问题讨论】:
标签: map mapping openlayers
Openspace 使用openlayers,它非常强大且有据可查
This may be the page you are looking for,还有一个样本here。
以下代码摘自示例
<script type="text/javascript">
var map;
function init(){
map = new OpenLayers.Map('map');
var options = {numZoomLevels: 3};
var graphic = new OpenLayers.Layer.Image(
'City Lights',
'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif',
new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
new OpenLayers.Size(580, 288),
options
);
graphic.events.on({
loadstart: function() {
OpenLayers.Console.log("loadstart");
},
loadend: function() {
OpenLayers.Console.log("loadend");
}
});
var jpl_wms = new OpenLayers.Layer.WMS( "NASA Global Mosaic",
"http://t1.hypercube.telascience.org/cgi-bin/landsat7",
{layers: "landsat7"}, options);
map.addLayers([graphic, jpl_wms]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.zoomToMaxExtent();
}
</script>
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