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| GeoCommunity Mailing List |
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| Subject: | RE: [gislist] Fragstats |
| Date: |
01/30/2004 09:15:01 AM |
| From: |
True, Cynthia D. |
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I too have had this problem. The only work-arounds that I have found =
are 1.) use a different computer with lots more RAM, 2.) subset the =
grids into smaller pieces. If anyone else has another option, I would =
be interested in learning about it.
Good Luck,
dt=20
-----Original Message-----
From: gislist-bounces@lists.geocomm.com =
[mailto:gislist-bounces@lists.geocomm.com] On Behalf Of A.MEYER
Sent: Friday, January 30, 2004 6:45 AM
To: gislist@lists.geocomm.com
Subject: [gislist] Fragstats
Hello all,
I try working with the Fragstats-Program in order to calculate some =
landscape metrics. I have several ArcGrids, they are of a rectangle form =
with a number of aprox. 4000x5000 pixels (and smaller) and a resolution =
of 1x1m. The landscapes I would like to calculate have all unregular =
shapes and big parts of the grid are "No Data"-Values. There are also =
some NO DATA values inside the landscape.=20
When I now want to execute the calculation of landscape metrics, the =
computer crashes down and the system is reinitialized. This happens only =
with bigger grids, for some smaller grids with the same properties the =
calculation executes without problems.=20
What may be the problem? I also tried writing class properties file or I =
asigned a background value to the NO DATA values etc. but it doesn=B4t =
help.=20
Perhaps you have had similar experiences and may detect the error.
Thank you
ANika
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