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<p class=MsoNormal>I'm playing around with OpenLayers again, after a pause of a
year or so. I'm trying to see what I can do with the commercial service
layers.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Working in 2.8:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I'm looking at two examples, one is the map on the
homepage: http://openlayers.org/<o:p></o:p></p>
<p class=MsoNormal> This map is constructed with the following call:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> var map = new OpenLayers.Map('map',
{'maxResolution': 1.40625/2});<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I'm also looking at the baselayers example:
http://openlayers.org/dev/examples/baseLayers.html<o:p></o:p></p>
<p class=MsoNormal>This map is constructed with the following call:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> map = new OpenLayers.Map( 'map' );<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I've stripped this down to just the Virtual Earth layer, and
changed the starting location and zoom level:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>
var div = document.getElementById('mapdiv');<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>
var lon = -93;<o:p></o:p></p>
<p class=MsoNormal>
var lat = 45;<o:p></o:p></p>
<p class=MsoNormal>
var zoom = 9;<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>//
var map = new OpenLayers.Map(div, { 'maxResolution': 'auto' });<o:p></o:p></p>
<p class=MsoNormal>
var map = new OpenLayers.Map(div);<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>
var ve = new OpenLayers.Layer.VirtualEarth("VE");<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>
map.addLayers([ve]);<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);<o:p></o:p></p>
<p class=MsoNormal>
map.addControl(new OpenLayers.Control.MousePosition());<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The problem is that it doesn't work. The map doesn't draw.
If I construct the map with no options, the way it was done in the base layers
example. It only works if I pass a maxResolution argument, even if that
argument is 'auto'.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I'm trying to understand how this is supposed to be working,
and for the life of me I can't get a handle on it. Why is maxResolution
necessary on my page, but not on the baselayers page?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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