Andy Cheesman wrote: > Dear People, > > I wondering if any of you lovely people can make a suggestion on a > problem which I have with a n dimensional array. > For example, I've a 3x3 array What mechanism (module?) are you using to store the array? Or are you asking us for a recommendation? > and I have been mapping an element from 1D > to the one directly above it. 3->12 > > 0 1 2 > 3 4 5 > 6 7 8 > > 9 10 11 > 12 13 14 > 15 16 17 > > The problem which I have is that I now need to rotated alternative layer > of the arrays arrays? I only see the 2nd as "rotated". And do you mean "transpose"? That is what the result looks like. What prevents you from keeping the original for the mapping and also having a transposed copy? > but I still need to have the original mapping i.e 3 -> 12. > > 0 1 2 > 3 4 5 > 6 7 8 > > 11 14 17 > 10 13 16 > 9 12 15 > The mapping can be defined in another array (I'm using origin 1 indexing here): 1,1 1,2 1,3 2,1 2,2 2,3 3,1 3,2 3,3 Then you'd transpose that when you transpose the other array.
-- Bob Gailer 510-978-4454 Oakland, CA 919-636-4239 Chapel Hill, NC _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
