[mapserver-users] WCS default band ?

[Rousseau Lambert2, Louis-Philippe (EC)]

Hi !


I'm configuring a WCS web services with files that have many bands, like 150.


The layer is only available in WCS and I would like to be able to specify a default band to use. I tried the WMS way with the PROCESSING "BANDS=1" but if I ask for the layer with a WCS 2.0.1 request, all always get all the bands...


Here is the request I use:

localhost:8080/mapserv?map=/some/path/wcs.map&SERVICE=WCS&VERSION=2.0.1&REQUEST=GetCoverage&COVERAGEID=layer_name&FORMAT=image/tiff&SUBSET=x(-160,-45)&SUBSET=y(25,85)


the result (from a 3 band layer) is always a 3 bands layer unless I specify a band to use in my WCS request. I would like it to only give a default band when I don't specify the RANGESUBSET...


Any idea on how to do, or I am doing something wrong ?


Thanks guys!


LP


Example mapfile:

MAP
 NAME "test"
 PROJECTION
  "init=epsg:4326"
 END
 OUTPUTFORMAT
  NAME GEOTIFF_16
  DRIVER "GDAL/GTiff"
  MIMETYPE "image/tiff"
  IMAGEMODE FLOAT32
  EXTENSION "tif"
 END
 EXTENT -180 -90 180 90
 SIZE 500 300
 WEB
  METADATA
    "ows_enable_request" "*"
    "ows_title" "My Web Services"
    "wcs_label" "test for cccs"
  END
 END

LAYER
     NAME "layer_name"
     STATUS ON
     TYPE RASTER
     DUMP TRUE
     TEMPLATE "ttt.html"
PROJECTION
 "init=epsg:4326"
 "lon_wrap=180"
END
     DATA '/data/geomet/afsslor/cccs/cmip5/test.tif'
     PROCESSING "BANDS=1"
     METADATA
      "ows_title" "test"
      "ows_include_items" "all"
      "wms_enable_request" "!*"
      "wcs_enable_request" "*"
      "wcs_label" "test for cccs"
      "wcs_size" "360 180"
      "wcs_extent" "-180 -90 180 90"
      "wcs_imagemode" "FLOAT32"
      "wcs_bandcount" "3"
      "wcs_band_names" "BandA BandB BandC"
      #default values
      "wcs_band_interpretation"   "This is default interpretation"
      "wcs_band_uom"              "DefaultUOM"
      "wcs_band_definition"       "DefaultDefinition"
      "wcs_band_description"      "This is default description"
      "wcs_interval"              "195 310"
      "wcs_significant_figures"   "3"
     END
    END
END

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