[mapserver-users] RE: [MapServer-users] Blank Image when zooming

[Fawcett, David]

Not knowing much about your application, it sounds to me like your layers are scale dependent.  In other words, they are set to only show between a maximum and a minimum scale value.  

Check the MINSCALE and MAXSCALE properties for each of your data layers.  Are the layers set to show at the scales you want to see them at?

If this doesn't work, post the text of your Map file.  Perhaps some of the other folks on the list could diagnose it from the mapfile.

David. 

David J. Fawcett
GIS / Databases

MN Office of Environmental Assistance
520 Lafayette Rd N
St. Paul, MN 55155
651.215.0200


> ----------
> From: 	Nuno Alves[SMTP:est-n-alves at ptinovacao.pt]
> Sent: 	Friday, January 04, 2002 9:41 AM
> To: 	mapserver-users at lists.gis.umn.edu; Nuno Alves
> Subject: 	[mapserver-users] Blank Image when zooming
> 
> 
> Hi all!  Sorry about my english.
> 
> I am using mapserver 3.5 (and i'm new at this, i just recently started with
> nightly builds), compiled with postgis, OGR and gd-1.2 to have gif support.
> I> ´m using MAPINFO files to produce a map of an exposition field with
> information about streets, MB services, restaurants, phones, and a lot of
> other
> important information for visitors.
> My problem is the following:
> 
> I open my web page and i can´t see some layers. When i zoom in some of them
> appear and others disapear. As for zoom out, is the same. I allready
> change the map extensions but the problem continues, note in the same zoom
> positions but in others.
> 
> Any help would be aprecciated. Thanks.
> Best regards,
> 
> 
>  <<...OLE_Obj...>> 
> 
> Nuno Ricardo Ribeiro Alves
> PT Inovação, S.A.
> Serviços e Redes Móveis
> * R. Engº José Ferreira Pinto Basto - 3810 Aveiro
> * mailto:est-n-alves at ptinovacao.pt
> 
>