[mapserver-users] Error Message in WMS service

[Smith, Michael ERDC-CRREL-NH]

Jan,

In the options to OpenLayers WMS layer, you set the ratio: 1 and OpenLayers
will not request outside of the visible screen area.

Mike


-- 
Michael Smith
Remote Sensing/GIS Center
US Army Corps of Engineers



On 4/8/11 9:22 AM, "Jan Hartmann" <j.l.h.hartmann at uva.nl> wrote:

> No, that doesn't work. It's an OpenLayers application, so the WMS
> request automatically computes an extent in excess of the screen. The
> second solution is really a bit of a kludge, don't you think so? :-)
> 
> I use another kludge: handle the complete WMS request via PHP Mapscript:
> return a an XML file for a GetCapabilities request, and an image for
> everything else (http://mapserver.org/ogc/mapscript.html). This will not
> cover the complete WMS protocol, but works fine for simple map requests,
> both in OpenLayers, ArcGIS, MapInfo and QGis. And it gives me at least
> complete control over error handling, with GD-produced error images at
> the right position. It's the only way I am aware of to produce WMS
> output that can be debugged easily.
> 
> Jan
> 
> On 8-4-2011 16:34, Lime, Steve D (DNR) wrote:
>> Or limit the size of the WMS request to the viewport size (ratio:1). I would
>> think that would be desirable regardless IMHO. Other option is to generate
>> longer error messages with really long layer names. ;-)
>> 
>> Steve
>> 
>> -----Original Message-----
>> From: Jan Hartmann [mailto:j.l.h.hartmann at uva.nl]
>> Sent: Friday, April 08, 2011 9:31 AM
>> To: Lime, Steve D (DNR)
>> Cc: mapserver-users at lists.osgeo.org
>> Subject: Re: [mapserver-users] Error Message in WMS service
>> 
>> OK, that means that I have to create an error image the size of the WMS
>> request and position the message in the middle, with some combination of
>> PHP Mapscript and PHP/GD. Doable.
>> 
>> Thanks,
>> 
>> Jan
>> 
>> On 8-4-2011 16:27, Lime, Steve D (DNR) wrote:
>>> Looking at the code it's always in the same place, so no...
>>> 
>>> Steve
>>> 
>>> -----Original Message-----
>>> From: mapserver-users-bounces at lists.osgeo.org
>>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Jan Hartmann
>>> Sent: Friday, April 08, 2011 9:21 AM
>>> To: mapserver-users at lists.osgeo.org
>>> Subject: [mapserver-users] Error Message in WMS service
>>> 
>>> Hi folks, just a beginner's question:
>>> 
>>> Is it possible to position the image-error message of a WMS request in
>>> the middle of the image? Normally it is placed in the upper left corner,
>>> and with OpenLayers (overlaid over Google Maps) the message is displayed
>>> on a tile outside the visual screen.
>>> 
>>> Jan
>>> _______________________________________________
>>> mapserver-users mailing list
>>> mapserver-users at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>> 
>>> 
>> 
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