[ka-Map-users] MapServer Reprojection

[Delfos, Jacob]

Ryan,

I don't think MapServer will reproject unless the layer and the mapfile
have a projection defined, like:

#####################
PROJECTION
"init=epsg:4326"
END
#####################

You would have to put that in your layer, and your mapfile (the global
projection). This is separate to projection parameters specified in the
metadata, for WMS, WCS, or other web-services. Those parameters are used
by the remote system to find out what projection the layer you are
serving out is in.

Regards,

Jacob




> -----Original Message-----
> From: ka-map-users-bounces at lists.maptools.org 
> [mailto:ka-map-users-bounces at lists.maptools.org] On Behalf Of 
> Ryan Ollerenshaw
> Sent: 14 July 2006 23:11
> To: ka-map-users at lists.maptools.org
> Subject: [ka-Map-users] MapServer Reprojection
> 
> My problem is that no matter what I have my SRS numbers set 
> to my data will
> always be displayed the same.  What could I be missing that 
> would cause
> MapServer's re-projection capabilities not to work.
> 
> I have several tiled .tiff images that I georeference by 
> lat/long values using:
> gdal_translate -a_ullr 180 0 210 -30  thm_dir_N-30_180.png 
> thm_dir_N-30_180.tiff
> 
> I am then displaying them in MapServer using:
> 
> LAYER
>   NAME "themis"
>   STATUS ON
>   TILEINDEX "thm_dir.shp"
>   TILEITEM "location"
>   TYPE RASTER
>   DUMP TRUE
>   METADATA
>     wcs_name "THEMIS_Data"
>     wcs_description "THEMIS dataset"
>     wcs_label "THEMIS dataset"
>     ows_srs "EPSG:4326"
>     ows_extent "0 -90 360 90"
>     wcs_resolution "150 150"
>     wcs_size "2700 3197"
>     wcs_formats "GEOTIFF"
>   END
> END
> 
> Here is what gdalinfo reports, but isn't it MapServer that 
> does all the
> re-projection?  So that fact that the Coordinate System here 
> is blank is ok
> right?
> 
> gdalinfo thm_dir_-30_000.tiff
> Driver: GTiff/GeoTIFF
> Size is 7680, 7680
> Coordinate System is `'
> Origin = (0.000000,0.000000)
> Pixel Size = (0.00390625,-0.00390625)
> Corner Coordinates:
> Upper Left  (   0.0000000,   0.0000000)
> Lower Left  (   0.0000000, -30.0000000)
> Upper Right (  30.0000000,   0.0000000)
> Lower Right (  30.0000000, -30.0000000)
> Center      (  15.0000000, -15.0000000)
> Band 1 Block=7680x1 Type=Byte, ColorInterp=Gray
>   Overviews: 3840x3840, 1920x1920, 960x960, 480x480, 240x240
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