[aspect-devel] inconsistency in use of x, y, and z

[Rene Gassmoeller]

Well, for the geometry model we could think about calling the extent of
the box by meaning instead of dimension (like length, width and depth,
or even x,y,depth). Then this section could remain unchanged in
different dimensions, but it would not longer be clear, which dimension
is interpreted as depth (or length, width) unless we state it clearly
somewhere. And for the function plugins one would still need to change
the input file (if only by inserting a 'width' in the middle of the 'set
Variable names = length, depth' line).

On 03/10/2015 07:26 PM, Magali Billen wrote:
> 
> On Mar 10, 2015, at 11:19 AM, Timo Heister <heister at clemson.edu> wrote:
> 
>>> In 2D the dimension of the box are set with X extent and Y extent. However, for the initial temperature
>>> function, the variables that need to be used are x and z.
>>
>> No, the variables used in the function expression can be anything you
>> want and are set in "Variable names". You can call them a and b for
>> example.
> 
> Okay - so maybe in for this cookbook it would be good to point that out, or make it consistent for the cookbook.
> 
>>
>>> This is also an issue with the boundary indicators.  To easily move from a 2D to a 3D model, the boundary
>>> indicators for left, right, bottom, top should remain 0-3 and adding the third dimension should add the boundary indicators 4 and 5 for the front and back.  I know you can get around this by using the words "front",  "back", etc...
>>> but this seems like a weird way of counting things
>>
>> What is your argument for not using left/right/top/bottom/front/back?
> 
> no argument against it, I just switched my input files to use these names instead of the numbers.
> 
>>
>> I agree that it annoying, that the current definitions do not allow
>> you to switch between 2d and 3d with a single line change. There is
>> certainly something we can try to improve.
> 
> Yes, I guess this is the real issue. 
> 
>>
>> -- 
>> Timo Heister
>> http://www.math.clemson.edu/~heister/
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