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#107: CF Data Model 1.7 -----------------------------+---------------------------------------------- Reporter: markh | Owner: [email protected] Type: task | Status: new Priority: medium | Milestone: Component: cf-conventions | Version: Resolution: | Keywords: -----------------------------+---------------------------------------------- Comment (by davidhassell): Replying to [comment:11 markh]: Dear mark > > * As regards the purpose, I mentioned "shape" because it is possible or likely that cell measures might be defined for the geometrical form of the grid, such as angles between gridlines. That hasn't been done yet, although it's been discussed. We could foresee the possibility by including "shape" now, or we could modify the data model later. > > I think we should leave this alone for now I don't think we can. The conventions (7.2) explicitly say that cell measures are for "size, shape or location of the cells" and that what is recognised is a matter for a controlled vocabulary This should be reflected in the data model. > My point is not about whether it is prohibited in cases where inference may be made. Instead I thought to indicate that where a cell measure is supplied, it should be used in preference to any inferred or calculated quantity. I have strengthened this statement, to be clear. > ''Where provided, the measure should be used in preference to calculating such a measure from other information.'' > > I think this is the message we want to provide to data interpreters. No rules of precedence are stated in the conventions, so I don't think that we should create some for the data model. > > If we say "numeric", "typed" is implied, isn't it. > > I don't think it is, there are multiple types of numeric, such as int, float (and more in some implementations). The array must have a specified type and not have it vary across its elements, I believe. This is a bit too implementation-specific for me. Why can't an array be conceptually a mixture of floats and integers? All the best, David -- Ticket URL: <https://cf-pcmdi.llnl.gov/trac/ticket/107#comment:12> CF Metadata <http://cf-pcmdi.llnl.gov/> CF Metadata This message came from the CF Trac system. To unsubscribe, without unsubscribing to the regular cf-metadata list, send a message to "[email protected]" with "unsubscribe cf-metadata" in the body of your message.
