Hi..I wanted to assign a unique value (number) for each cell in the grid..I just wonder if any one can help me ..For my knowledge ArcMap 10 has no such tool, and I guess the only way to do it is through python programming..That is my thought, I may be wrong, don't know..Appreciate if some one can help me out.. Thanks a lot... Hi mykotti, I'm looking for simple examples of using numpy for GIS and this seems like a good one -- except I don't really can't guess (or conjure) a reason for creating a raster with a unique value for each cell. Could you explain? Thanks. -- LT
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