[mapserver-dev] WCS 2.0 support and time slicing

[Even Rouault]

Hi,

Looking at msWCSGetCoverage20(), it is my impression that the time dimension 
is not supported currently.

  /* iterate over all subsets and check if they are valid*/
  for(i = 0; i < params->numaxes; ++i) {
    if(params->axes[i]->subset != NULL) {
      if(params->axes[i]->subset->timeOrScalar == MS_WCS20_TIME_VALUE) {
        msSetError(MS_WCSERR, "Time values for subsets are not supported. ",
                   "msWCSGetCoverage20()");
        return msWCSException(map, "InvalidSubsetting", "subset", params-
>version);
      }
      if(params->axes[i]->subset->operation == MS_WCS20_SLICE) {
        msSetError(MS_WCSERR, "Subset operation 'slice' is not supported.",
                   "msWCSGetCoverage20()");
        return msWCSException(map, "InvalidSubsetting", "subset", params-
>version);
      }
    }
  }

Of course trimming, especially through time dimension, would be hard given 
MapServer architecture, but I guess that time slicing could be implemented, 
similarly to the TIME= support in earlier WCS versions, by using 
msLayerSetTimeFilter() ?
I guess another impact would be to declare time bounds in GetCoverage 
response.

Even

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