On 7/7/2011 11:53 AM, Jeffrey F. Painter wrote:
> It looks as though you've been reviewing the public draft of the
> future CF Conventions version 1.6. It's great that someone has been
> looking at it!
>
> It seems to me that z in the examples of Appendix H (formerly
> designated A9) plays the role of an auxiliary coordinate variable,
> although technically it's not because there isn't (but should be) a
> 'coordinates' attribute which lists auxiliary coordinate variables.
> I don't know why axes are banned for auxiliary coordinate variables in
> the case of trajectories. Something needs to be clarified here, or
> the examples changed.
>
> This was ticket 37. Are there any comments from Steve Hankin, the
> moderator, or any of the other people who contributed to writing
> Chapter 9, or anyone else who knows more than me?
stand by. I think Chris has pointed out a needed correction to Chapter
5 that was discussed, but was not documented. (thanks Chris) But need
to confirm with others.
- Steve
>
> Thanks to all!
> - Jeff Painter
>
> On 7/7/11 5:13 AM, Chris Paver wrote:
>> Dear List,
>> I have been reviewing the use of the axis attribute as defined in
>> Chapter 5, and
>> comparing it to the trajectory example in the Chapter 9 document at
>> A9.4. The
>> Ch. 5 rules states that only a coordinate variable can have an axis
>> attribute,
>> whereas the auxiliary variables cannot. However, in Ch. 9, the single
>> trajectory dimension is time, but the variable z contains the axis
>> attribute. Is
>> this a change to the rule as stated in Ch. 5, or a typo? I briefly
>> looked over
>> the other feature types in Ch. 9, and they all look to have the vertical
>> variable listed with the axis attribute, so maybe it is a typo.
>>
>> Thanks,
>> Chris
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Received on Thu Jul 07 2011 - 12:59:09 BST
