[mapserver-users] Mapserver and raster layers

[Stephen Woodbridge]

What does:

gdalinfo /tmp/image.tif

report?

-Steve W


On 4/16/2011 4:52 PM, Christopher Dedels wrote:
> Hmmm...missed that one.  But changing the units to dd still doesn't have
> any effect.
>
> I am using mapserver 4.8.1.  DEBUG is not an option in this version.
> mapserv -v produces the following output:
>
> MapServer version 4.8.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
> OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER
> SUPPORTS=GEOS INPUT=EPPL7 INPUT=POSTGIS INPUT=GDAL INPUT=SHAPEFILE
>
> My request uri is:
> http://localhost/cgi-bin/mapserv?MAP=/tmp/mapNl7O7H.map&LAYERS=ALL&MODE=MAP
> <http://localhost/cgi-bin/mapserv?MAP=/tmp/mapNl7O7H.map&LAYERS=ALL&MODE=MAP>
>
> gdalinfo output for my raster file is:
>
> Driver: GTiff/GeoTIFF
> Files: /tmp/image.tiff
> Size is 800, 600
> Coordinate System is:
> GEOGCS["WGS 84",
>      DATUM["WGS_1984",
>          SPHEROID["WGS 84",6378137,298.257223563,
>              AUTHORITY["EPSG","7030"]],
>          AUTHORITY["EPSG","6326"]],
>      PRIMEM["Greenwich",0],
>      UNIT["degree",0.0174532925199433],
>      AUTHORITY["EPSG","4326"]]
> Origin = (-123.860031127930000,38.011638641357401)
> Pixel Size = (0.033339290618897,0.026156539916992)
> Metadata:
>    AREA_OR_POINT=Area
> Image Structure Metadata:
>    INTERLEAVE=BAND
> Corner Coordinates:
> Upper Left  (-123.8600311,  38.0116386) (123d51'36.11"W, 38d 0'41.90"N)
> Lower Left  (-123.8600311,  53.7055626) (123d51'36.11"W, 53d42'20.03"N)
> Upper Right ( -97.1885986,  38.0116386) ( 97d11'18.96"W, 38d 0'41.90"N)
> Lower Right ( -97.1885986,  53.7055626) ( 97d11'18.96"W, 53d42'20.03"N)
> Center      (-110.5243149,  45.8586006) (110d31'27.53"W, 45d51'30.96"N)
> Band 1 Block=800x2 Type=Float32, ColorInterp=Gray
>
> Regards,
>
> Chris
>
>
> On Sat, Apr 16, 2011 at 4:34 PM, Stephen Woodbridge
> <woodbri at swoodbridge.com <mailto:woodbri at swoodbridge.com>> wrote:
>
>     On 4/16/2011 4:33 PM, Christopher Dedels wrote:
>
>         Thanks for the suggestion.   I have tried it and it appears to
>         have no
>         effect.
>
>         Chris
>
>
>         On Sat, Apr 16, 2011 at 4:26 PM, Stephen Woodbridge
>         <woodbri at swoodbridge.com <mailto:woodbri at swoodbridge.com>
>         <mailto:woodbri at swoodbridge.com
>         <mailto:woodbri at swoodbridge.com>>> wrote:
>
>             Try changing the layer status to default, ie:
>
>               STATUS DEFAULT
>
>             -Steve W
>
>
>             On 4/16/2011 2:22 PM, Christopher Dedels wrote:
>
>                 I am having some problems adding a raster layer to my
>         map.  The
>                 image
>                 produced by mapserver is blank.  My mapfile is as follows:
>
>                 MAP
>                          SIZE 800 600
>                          UNITS meters
>
>
>     This is a problem, Your UNITs are meters, but your extents and
>     projection are DD!
>
>
>                          EXTENT -123.8600311 38.0116386 -97.1885986
>         53.7055626
>
>                          PROJECTION
>         "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
>                          END
>
>                          LAYER
>                                  NAME "grid"
>                                  TYPE RASTER
>                                  DATA "/tmp/image.tiff"
>                                  STATUS ON
>                                  PROJECTION
>         "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
>                                  END
>                          END
>                 END
>
>                 I have also noticed that changing the DATA path to a
>         file which
>                 does not
>                 exist in the filesystem (or is not a GDAL-supported file
>         format)
>                 has no
>                 effect on the rendered output and does not produce an
>         error message.
>
>                 Can somebody help me where I am going wrong?
>
>                 Thanks
>
>
>
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