[GRASS-dev] [bug #5431] (grass) landscape generator - control patches

Request Tracker grass-bugs at intevation.de
Fri Jan 12 10:29:13 EST 2007


this bug's URL: http://intevation.de/rt/webrt?serial_num=5431
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Subject: landscape generator - control patches

Platform: GNU/Linux/x86
grass binary for platform: Compiled from Sources
GRASS Version: cvs 11.01.2007

Hello, 

the landscape generating modules in GRASS are great but it would be very 
handy if you can control for size/shape/amount of patches (Total amount of 
habitat in the window, amount of patches, mean patch size + stddev, shape + 
stddev etc.)

Such a program existed (LSF), I contacted the authors of the LSF Program for 
fragmented landscapes generation (Christina D. Hargis1, John A. Bissonette1 
and John L. David (1998) The behavior of landscape metrics commonly used in 
the study of habitat fragmentation. Landscape Ecology Volume 13, Number 3 / 
June 1998)
This software was used to "generate artificial landscapes that mimicked 
fragmentation processes while controlling the size and shape of patches in 
the landscape and the mode of disturbance growth".
Unfortunately the program does not exist anymore (development stopped) and 
the language was written for a software which is now proprietary hence it is 
not available anymore.

Such a module would be very handy in conjunction with already existing 
modules (landscape generater, r.li)

regards, Martin


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