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<pre>Hi, we have this system working with MapServer version 4.8.2, PHP
version 4.4.2. I am trying to do a map that shows both layer (WGS84
shapefile) and WMS data togheter. The starting response is ok, but I get the
blank image from the first pan or zoom on. This is the example URL:
http://webgis.provincia.biella.it/apps/maplab/projects/gmf_apps/basewms4/wmdmap.php
I guess the problem is due to wrong parameters for EXTENT, SIZE and
PROJECTION in the mapfile. These are: EXTENT -15 25 40 70 SIZE 470 520
PROJECTION "init=epsg:4326". The question are: 1. the SIZE (in pixel) has
to be proportional to the EXTENT? 2. if yes, how to obtain the right values
for the EXTENT? 3. if not, where is the problem? 4. in a map with geographic
non-projected data like this, is correct to have value for scale of the
representation since UNITS are DD? I would be very grateful for any help
from you all, thanks! Best regards andrea ardito P.S. If I set no layer in
the map file, and I try to represent only WMS layer (adding them from
"Servizi WMS" button), it works.</pre><font style="font-family:
arial,helvetica,sans-serif; font-size: 10pt;"> <div> <br /> </div>
</font> <div><font color="#000099" size="2"
face="arial,helvetica,sans-serif">arch. Andrea ARDITO</font> </div> <div>
<font color="#000099" size="2" face="arial,helvetica,sans-serif">Sistema
Informativo Territoriale Ambientale (S.I.T.A.)</font> </div> <div><font
color="#000099" size="2" face="arial,helvetica,sans-serif">Settore
Pianificazione e Sicurezza del Territorio</font> </div> <div><font
color="#000099" size="2" face="arial,helvetica,sans-serif">Provincia di
Biella</font> </div> <div><font color="#000099" size="2"
face="arial,helvetica,sans-serif">Via Quintino Sella, 12 - 13900
BIELLA</font> </div> <div><font color="#000099" size="2"
face="arial,helvetica,sans-serif">tel. 015.8480880</font> </div> <div><font
color="#000099" size="2" face="arial,helvetica,sans-serif">fax.
015.8480740</font> </div>
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