From: Satsou Sa <moshimoshi.here@...>
Date: 2012-01-09T06:15:28+09:00
Subject: NArray - from coordinates to index

Hi,

How can we convert a coordinates to an index?

I'm using the awesome NArray library with some arrays of 1, 2, 3, or
more dimensions.  For instance, if we consider this 3x3 array of 2
dimensions ...

    NArray.int(3,3):
    [ [ 0, 0, 0 ],
      [ 0, 0, 0 ],
      [ 0, 0, 0 ] ]

... the square of the coordinate [0,1] have also the index of 3 (and
according to the NArray specs, a[3] is same as a[0,1] if a is 3x3
array).

Is there a simple way to find the index, from the coordinates?

Many thanks,

Sa-

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