On Thu, 1 Jul 1999 6:00 AM, Ron Parker <mailto:par### [at] fwicom> wrote:
>On Wed, 30 Jun 1999 12:25:31 -0700, Ken wrote:
>>
>>
>>Stewart #7 wrote:
>>> 
>>>   Will the new  array  function (latest pov release) allow you
>>> to define an array of ANY size...say 30 by 200 ?
>>> 
>>>   Also...is there a tutorial which deals mostly with this function?
>>> 
>>> thanks, stu7
>>
>>I believe it it limited to a maximum of 5 x n in the format of
>>
>><a,b,c,d,e>,
>><f,g,h,i,j>,
>><k,l,m,n,o>,
>>etc...
>
>Why should that be?  You're not limited to a single-dimensional
>array, you know.  Consider this example, from the docs:
>
>  #declare Rows=5; #declare Cols=4;
>  #declare Table=array[Rows][Cols]
>
>Here are the real limits on arrays, gleaned from the source code:
>  - An array may have a maximum of five dimensions.

[rest snipped]

and if you run out after 5D then:
#declare a_big_array=array[3][3][3][3][3]
#declare another_array=array[2][2]
#declare a_big_array[0][0][0][0][0]=3.141592653589793;
//note you *must* assign values to elements before assigning an array to 
//another array's element, otherwise the parser objects when accessing the
//element in the #statistics line below
#declare another_array[0][0]=a_big_array//notionally now a 7D array
#statistics str(another_array[0][0][0][0][0][0][0],3,9)

which allows variable length and dimension arrays... anyone for lists of
vertices?
(note: you can test array elements for the dimensions of the array held in
the element, but testing the containing array doesn't take those dimensions
into account)

As this is undocumented (as far as I can see) it probably isn't a good idea
to build scenes which rely on it, just mentioned it in case someone needs
>5 array dimensions NOW.

Have Fun
Martin
--
Owner/Operator - Tesseract Computing
<hyp### [at] tesseractcomau> or just reply.

Computer Systems Officer - Tourism Tasmania
<Mar### [at] tourismtasgovau>

I speak for me.

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