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| Subject: | Re: [gislist] Smooth boundaires |
| Date: |
02/20/2004 02:50:01 PM |
| From: |
Gregory Yetman |
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Bill,
It depends on what software you are using! I mostly use ESRI products,
below is what I know is available for them. Competitors would have
equivalents, I imagine.
For ArcInfo workstation, there is a GENERALIZE command that works very
well (I'd recommend using the ERRORCHECK option). In ArcView 3.x there is
an extension written by ESRI to do this, it is available at:
http://arcscripts.esri.com/details.asp?dbid=10066
I've not used it much, I gather that it works OK but does not check for
gaps or overlaps that may be created.
In ArcMap (ArcEditor and ArcInfo only) you can generalize featuers while
editing. Just choose your features and click the 'smooth tool'. Unless you
have set up a GeoDatabase with topology rules, it could produce
overlaps/gaps like the ArcView extension.
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 Fri, 20 Feb 2004, Bill Medina wrote:
> Dear all:
>
> I have delineated a watershed from a DEM, but the borders are square,
> following DEM cells. Is there a way to smooth this borders?
>
> Thanks a lot.
>
> WMC
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