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Posted by Brent Baisley on 04/22/05 23:35
Well, it's just a matter of coming up with the formula for converting
your data. I briefly tried to come up with one, but gave up after I
realized there would not be a "center" data piece if you have a 4x4
array or any even number array for that matter.
I would right down the array positions for before and after and try to
find the pattern you are looking for. It should be some combination or
rows, columns and array size (addition, subtraction, multiplicaiton,
division, absolute values, etc.). If you can't find the pattern, you
can't write a generic conversion function and neither can PHP or
anybody.
Your first row maps like this (row,col):
0,0 -> 2,0
0,1 -> 1,1
0,2 -> 0,2
This formula would map the first row appropriately:
row = ColCount - ColNum
col = ColNum
It obviously fails for your second row, but it's just an example.
There is obviously a pattern which the mind can interpret fairly
quickly. But trying to describe it in exact terms can be difficult.
On Apr 22, 2005, at 11:46 AM, Jon Aston wrote:
> Is there a way to easily rotate array data?
>
> what I want to do is
> change from
>
> bob | bill | frank
> joe | jose | sam
> sally | jim | kim
>
> to
> | | | frank| | |
> | |bill | | sam| |
> |bob| | jose | | kim|
> | |joe| |jim | |
> | | | sally | | |
>
> is there an easy way to do this?
> the data and arraysize will vary so I was looking for a way that I
> could
> have php do it without having to make script for different array sizes.
>
> Thanks
>
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--
Brent Baisley
Systems Architect
Landover Associates, Inc.
Search & Advisory Services for Advanced Technology Environments
p: 212.759.6400/800.759.0577
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