Hello,
The definition of GEOTIFF_FLOAT is as follows:
OUTPUTFORMAT
NAME GEOTIFF_FLOAT
DRIVER GDAL/GTiff
MIMETYPE application/octet-stream
IMAGEMODE FLOAT32
END
I Added the MIMETYPE as shown to ensure that web browsers
would ask to save the file rather than just open it in an
image viewer from a temp file. (MS Windows...)
That part works fine.
Mostly I am concerned with extracting a specific 'band'
from the multi-band file. The server serves floating point
geotiff just fine.
Peter
Rahkonen Jukka wrote:
Hi,
How have you defined the OUTPUTFORMAT for GEOTIFF_FLOAT?
-Jukka Rahkonen-
Peter Willis wrote:
Hello,
I have been setting up a WCS map file for mapserver.
PROBLEM:
Problems arise when rasters are defined
as follows:
LAYER
NAME SomeDataChannel120
STATUS OFF
DEBUG ON
TYPE RASTER ### required
PROCESSING BANDS=120
METADATA
wcs_label Data/stuff
wcs_rangeset_name 'bands'
wcs_rangeset_label Stuff thats mapped
ows_extent '-135 55 -121 46'
wcs_resolution '0.08332 -0.083332'
ows_srs 'EPSG:4326'
wcs_srs 'EPSG:4326'
wcs_formats 'GEOTIFF_FLOAT,GEOTIFF_INT16'
wcs_nativeformat 'ENVI'
#wcs_bandcount '563'
wcs_rangeset_axes 'bands'
END
DATA /data/stuff.img
PROJECTION
init=epsg:4623
END
DUMP TRUE ### required
END
I have 'wcs_bandcount' commented out because mapserver
causes an internal error in the web server if I define the
band count.
I get floating point geotiff served with the following client request:
http://sparky.com/cgi-bin/wcs?REQUEST=GetCoverageSERVICE=WCSVERSION=1.0.0COVERAGE=SomeDataChannel120CRS=EPSG:4326BBOX=-135,55,-121,46WIDTH=432HEIGHT=216FORMAT=GEOTIFF_FLOATRangeSubset=contents:nearest[Band[120]]
..however, I always only get the first band from the img file
QUESTIONS:
Is there a problem with this setup?
Do I need to define each band as a layer in the mapfile
or will mapserver WCS allow the client to request a single
channel?
Thanks for any enlightenment,
Peter
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