[GRASS5] [bug #3427] (grass) v.buffer makes the buffers TWICE the desired size
Request Tracker
grass-bugs at intevation.de
Sat Jul 16 05:55:30 EDT 2005
this bug's URL: http://intevation.de/rt/webrt?serial_num=3427
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Subject: v.buffer makes the buffers TWICE the desired size
Platform: GNU/Linux/i386
grass obtained from: CVS
grass binary for platform: Compiled from Sources
GRASS Version: 15.07.2005
v.buffer input=border output=border_half_km type=line layer=1 buffer=500
makes the buffer about 1 km wide, though 500m requested
v.buffer input=border output=border_1_km type=line layer=1 buffer=1000
makes it about 2 km wide
Strange. Bug?
The input "border" you can grab here for testing:
http://www.biol.uni.wroc.pl/sieczka/udostepnione/border.tar.bz2
There is no .prj file cause GDAL/OGR cannot parse the "sterea" projection yet. In case you need this information:
GRASS 6.1.cvs (caves_65):~ > g.proj -p
-PROJ_INFO-------------------------------------------------
name : Stereographic
proj : sterea
a : 6378245
es : 0.0066934216
lat_0 : 51.67083333333333
lon_0 : 16.67222222222222
k : 0.999800
x_0 : 3703000
y_0 : 5627000
towgs84 : 33.4297,-146.5746,-76.2865,-0.35867,-0.05283,0.84354,-0.8407728
no_defs : defined
-PROJ_UNITS------------------------------------------------
unit : metre
units : metres
meters : 1
GRASS 6.1.cvs (caves_65):~ > g.region -p
projection: 99 (Stereographic)
zone: 0
datum: towgs84=33.4297,-146.5746,-76.2865,-0.35867,-0.05283,0.84354,-0.8407728
ellipsoid: a=6378245 es=0.0066934216
north: 5578761.99643985
south: 5576874.65677985
west: 3685399.25248024
east: 3686946.53094024
nsres: 1.00018
ewres: 1.00018
rows: 1887
cols: 1547
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