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" <[email protected]> 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:[email protected]] >> Sent: Friday, April 08, 2011 9:31 AM >> To: Lime, Steve D (DNR) >> Cc: [email protected] >> 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: [email protected] >>> [mailto:[email protected]] On Behalf Of Jan Hartmann >>> Sent: Friday, April 08, 2011 9:21 AM >>> To: [email protected] >>> 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 >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >>> >>> >> > _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
