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[cellml-discussion] Finding the units associated with a variable


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  • From: d.nickerson at auckland.ac.nz (David Nickerson)
  • Subject: [cellml-discussion] Finding the units associated with a variable
  • Date: Fri, 26 May 2006 16:03:05 +1200
Andrew Miller wrote:
> David Nickerson wrote:
>
>> Looks ok to me. would something like variableUnits be more appropriate?
>>
>>
> It is already on the variable interface, so that is implied. That name
> might also suggest that the units themselves are variable, and confuse
> people.

yeah, but I'm similarly confused with unitsElement - obviously units
would be the best attribute but as you say, that would be invalid
IDL...is there anything else we could call it?

> I think that the other attribute will be useful too (although the code
> generation doesn't use it, as it needs to support the builtin units).
> Everything you can do with the API can be done directly using the DOM,
> but the point of the API is to make it easier to use CellML, not to
> provide any functionality which is not already available through the
> DOM. We already have other similar attribute pairs, e.g. for finding
> variables or components in connections. BTW note that this attribute is
> read-write, so it is not just about getting the name, but also setting
> that attribute. Being able to do v.unitsElement = someUnit; rather than
> v.unitsName = someUnit.name; is slightly more convenient, and more
> importantly, it checks that someUnit is in the right component/model in
> order to allow the assignment, and raises an exception otherwise.

OK - I'm happy with both attributes now.


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