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| GeoCommunity Mailing List |
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| Subject: | Re: [gislist] Rounding in Spatial Analyst |
| Date: |
07/08/2004 03:50:01 PM |
| From: |
Gregory Yetman |
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Hi Marc,
The INT function truncates to whole numbers ('rounding towards zero'), to
round values .5 or greater up use:
outgrid = int(ingrid + 0.5)
unless you have negative values that you need rounded, then use:
outgrid = int(con(ingrid lt 0, ingrid - 0.5, ingrid + 0.5))
Greg
----------------------------------------------------------------------
Gregory Yetman
Center for International Earth Science Information Network (CIESIN)
Columbia University
URL: http://www.ciesin.columbia.edu/
e-mail: gyetman@ciesin.columbia.edu
tel: (845) 365-8982
----------------------------------------------------------------------
On Thu, 8 Jul 2004, Marc Allred wrote:
> I'm working in Spatial Analyst 8.3. What is the formula in raster
> calculator that can make my grid values rounded to the decimal place?
> Example, I have a grid value of 1,203.021302 and I would like for it to
> show 1,203.
>
> Marc Allred
> Northwest Piedmont COG
> GIS Analyst
> Phone: 336-761-2111
> Fax: 336-761-2112
> E-mail: mallred@nwpcog.org
>
>
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