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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ian, <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I haven’t used tilemode, but my assumption is that the map
projection block is used to define what the output projection for your tile is
(like in the other MapServer modes). <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Try setting map projection to epsg:3785 or using the proj4 text:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>+proj=merc
+lon_0=0 +k=1 +x_0=0 +y_0=0 +a=6378137 +b=6378137 +towgs84=0,0,0,0,0,0,0
+units=m +no_defs <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If tilemode requires a map extent, it should be expressed in
units of the output projection.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>David.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapserver-users-bounces@lists.osgeo.org
[mailto:mapserver-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Ian Dees<br>
<b>Sent:</b> Wednesday, January 06, 2010 2:24 PM<br>
<b>To:</b> mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> [mapserver-users] Tilemode Projection Problem<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi everyone,<br>
<br>
I've spent the better part of today scouring the internet for documentation and
help on the tile mode present in mapserver, but I couldn't find an answer to my
problem, so please forgive me if I'm missing some obvious documentation some
where...<br>
<br>
I am attempting to show some GeoTIFFs (from here: <a
href="ftp://geoftp.ibge.gov.br/mapas/ortofoto/">ftp://geoftp.ibge.gov.br/mapas/ortofoto/</a>).
My research says they're in epsg:31984.<br>
<br>
I'm trying to use MapServer's tile mode to display them on a Google Map API
instance, but can't seem to get any of the images to show up.<br>
<br>
Also, why am I required to give a PROJECTION statement as a child to the MAP
statement (what I assume is the "viewing projection") if the tile mode
is just going to reproject to spherical mercator?<br>
<br>
My .map file is below.<br>
<br>
Thanks!<br>
<br>
MAP<br>
NAME GMAP_TILE<br>
STATUS ON<br>
<br>
PROJECTION
"init=epsg:31984" END<br>
<br>
IMAGECOLOR 192 192 192<br>
IMAGEQUALITY 95<br>
IMAGETYPE png<br>
<br>
OUTPUTFORMAT<br>
NAME png<br>
DRIVER 'GD/PNG'<br>
TRANSPARENT ON<br>
END<br>
<br>
LAYER <br>
NAME brazil<br>
TYPE raster<br>
DATA "/var/www/map/2414-1-SO.tif"<br>
STATUS ON<br>
PROJECTION "init=epsg:31984" END<br>
END<br>
END<o:p></o:p></p>
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