[UW-GIS-L] 0 is not nodata, at least most of the time.

[Phil Hurvitz]

Or there is the "setnull" request used this way in a map calculator,

([mygrid] = 0.AsGrid).SetNull([mygrid])

-P.

******************************************************************************
Phil Hurvitz, MFR | GIS Specialist | College of Forest Resources | 355 Bloedel
Box 352100 | University of Washington, Seattle, Washington  98195-2100, USA
 tel: 206.685.8179 | FAX: 206.685.3091 | e-mail: phurvitz at u.washington.edu
             WWW: http://gis.washington.edu/phurvitz
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On Wed, 24 Mar 2004, Jeff Silverman wrote:

> I am working with ArcView 3.2a.
>
> I have been given a binary floating point grid, and it has 0.0 for the
> areas where there is no data, and positive non-zero numbers where it has
> data.  I can create an map calculator query which will produce a nice
> outline, 1 where the value is > 0 and 0 where the value is 0. What I
> really want is a map calculator query which will output NODATA where the
> grid is 0 and the value of the point where that value is > 0.
>
> Can this be done?
>
>
> Many thanks,
>
>
> Jeff
>
>
> --
> Jeff Silverman,
> Senior Computing Specialist 3, Fire and Environmental Research Applications
> (FERA) team.  College of Forest Resources
> jeffsilv at NOSPAM,PLEASE-u-washington-edu   (206) 732-7815
> http://duet.cfr.washington.edu/~jeffs
>
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