RE: [OWS-3-SWE] RE: [GMLJP2] NetCDF <--> GML/JPEG2000

• To: <rlake@xxxxxxxxxxxxx>, <mpg@xxxxxxxxxxxxxx>, <caron@xxxxxxxxxxxxxxxx>,
• Subject: RE: [OWS-3-SWE] RE: [GMLJP2] NetCDF <--> GML/JPEG2000
• From: <Simon.Cox@xxxxxxxx>
• Date: Sat, 14 May 2005 09:46:22 +0800

Yes again - Coverage is clearly a restriction of a more generalised parent, perhaps 
starting at "Function".  However, the restriction to spatio-temporal domains is 
useful.  This is a special, frequently-occuring subtype of the general concept, that is 
important enough in GIS to warrant its own name.  There are certain operations that apply 
to coverages that do not apply to the parent classes, and it is useful to have things 
classified in this way to allow these operations to be available.

So, I think we do need a more general class, but we should also retain 
"coverage".  netCDF is related to the parent of coverage, and JP2K relates to a 
restriction of coverage.

And the Observation model relates to metadata about the estimate of values in 
the range.

Simon

HI,

I agree with Simon's description - but it would not be difficult to generalize 
the current coverage concept to allow the domain to be other than a 
spatial-temporal region.

Ron