Wed, Mar 8 2006
22:11:50
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Request created by guest
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Subject: Errors in r.walk
Platform: GNU/Linux/x86
grass obtained from: CVS
grass binary for platform: Compiled from Sources
I get errors when trying to run r.walk
If I set the starting points (coodinates = x,y) I get the next error:
WARNING: segment_pagein: short count during read()
WARNING: segment_pagein: short count during read()
WARNING: segment_pagein: short count during read()
ERROR: Raster output map out_walk - not found (no start_points given)
I know the pagein bug, but the command demands the use of vector points in order
to do its operations instead of given coordinates. Nevertheless, if I try to
introduce a vector points layer as "start_points", I get another error:
Walking costs are a=0.720000 b=6.000000 c=1.999800 d=-1.999800
Lambda is 2.000000
Slope_factor is -0.212500
Nseg is 4
Null cells excluded from cost evaluation.
ERROR: Can't find starting vector archsites
R.walk does not recognise existing "archsites" vector.
Any sugestions? Thanks |
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Wed, Mar 8 2006
22:48:43
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Mail sent by guest
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Hi,
please post the full command line you used.
Also: does the "archsites" map really exist (in the
mapset search path)?
does
v.info archsites
work?
Markus |
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Thu, Mar 9 2006
18:49:41
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Mail sent by guest
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Hi,
I think I found some bugs in r.walk. Now it should
find the maps, please try again from CVS (or next Saturday's
snaphot).
Markus |
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Fri, Mar 10 2006
12:40:13
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Mail sent by mneteler
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We have fixed the remaining segfaults.
Now r.walk works.
Spearfish example:
r.walk elevation.dem friction=slope start_points=archsites
stop_points=bugsites out=walk lam=2
Markus |
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Fri, Mar 10 2006
12:40:15
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Status changed to resolved by mneteler
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