[Geomoose-users] Poor quality WMS display in IE

[Brent Fraser]

Bob,

   Check your  "opacity" setting for the WMS <map-source> in your map 
book and set it to 100 (or remove it).  As Michael points out, IE has 
problems using both Alpha (a band in the image) and transparency (a 
setting in the browser) for a PNG image.

Best Regards,
Brent Fraser


On 10/19/2011 3:01 PM, Bistrais, Bob wrote:
>
> I'm using a WMS service of our base data in a GeoMoose application.  
> The WMS is at MapServer 6.0.1 with a PNG output type.  My GeoMoose 
> installation is the Oregon variant 2.2 (MapServer 5.6?).
>
> This service looks poor in the application when in Internet Explorer 
> (version 8), but looks great in Firefox, Chrome, and Safari.  The WMS 
> also looks fine in ArcGIS, and also in IE with a simple WMS GetMap 
> request.
>
> Right now, the WMS service and my app are on our test server, which 
> you should be able to look at.  I will give you the caveat that the 
> application is still being built and many controls are not yet 
> working, but if anyone wants to take a look, here are the URLs:
>
> WMS Service:
>
> http://mapservertest.maine.gov/wms/mapserv.exe?map=c:/wms/basemapNew.map&SERVICE=WMS& 
> <http://mapservertest.maine.gov/wms/mapserv.exe?map=c:/wms/basemapNew.map&SERVICE=WMS&> 
>     -WMS version 1.1.1
>
> Here is the URL for the simple WMS request I tried, and looks OK in IE:
>
> http://mapservertest.maine.gov/wms/mapserv.exe?map=c:/wms/basemapNew.map&SERVICE=wms&version=1.1.1&request=GetMap&layers=towns24_poly,Roads,Hydrography&BBOX=437700,4907800,439030,4909100&SRS=EPSG:26919&FORMAT=image/png&width=800&height=600 
> <http://mapservertest.maine.gov/wms/mapserv.exe?map=c:/wms/basemapNew.map&SERVICE=wms&version=1.1.1&request=GetMap&layers=towns24_poly,Roads,Hydrography&BBOX=437700,4907800,439030,4909100&SRS=EPSG:26919&FORMAT=image/png&width=800&height=600>
>
> GeoMoose Application:
>
> http://mapservergeotest.maine.gov/broadband/index.html# 
> <http://mapservergeotest.maine.gov/broadband/index.html>   -Zoom in on 
> a town and you will see poor graphic quality in IE, but looks good in 
> other browsers.
>
> But what could be causing the poor display only with IE?  Could it be 
> OpenLayers causing the problem?  Other ideas?  Has anyone else had 
> this experience?  Is there some setting on IE that I need to adjust?
>
> Thanks,
>
> Bob
>
>
>
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