[GRASS5] r.mapcalc question
David Piasecki
piasecda at nv.doe.gov
Thu Feb 3 12:18:20 EST 2005
Of course it was my fault the region changed. Anyway, the r.mapcalc way
works, so I can compare speed issues to r.patch. At first glance, it
seems faster, but the real test is when I throw the full dataset at it.
Thanks again,
David
On Feb 2, 2005, at 5:26 PM, Hamish wrote:
>> Perhaps this isn't quite the fastest method, but it works. If anyone
>> knows of a more efficient way of doing the same thing, I'd be
>> interested in taking suggestions.
>
>
> so what is wrong with r.patch exactly? If it does what you want it's a
> bit less prone to user error than r.mapcalc and in theory it should
> cycle through the raster cells at about the same speed?
>
> r.patch can take a couple hundred input maps at once (in preferential
> order).
>
>
>
> Hamish
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