Getting raw wcs-dem value with mapserver

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I retrieve wcs-dem.

curl --trace -i -H "Content-Type: application/image" -XGET "http://127.0.1.1/cgi-bin/mapserv?ma...42.106463&WIDTH=1600&HEIGHT=1066&FORMAT=GTiff" > dem.tif

But, it generates 3 bands without having any dem value as :

(gdalinfo dem.tif)

Band 1 Block=1600x1 Type=Byte, ColorInterp=RedBand 2 Block=1600x1 Type=Byte, ColorInterp=GreenBand 3 Block=1600x1 Type=Byte, ColorInterp=Blue

shp2img produces proper results :

Band 1 Block=2707x3 Type=Byte, ColorInterp=Gray

What am I doing possibly wrong ?What do I have to do to get raw wcs-dem value?

regards

Ahmet Temiz



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