[GRASS5] [bug #3427] (grass) v.buffer makes the buffers TWICE the desired size

[Request Tracker]

this bug's URL: http://intevation.de/rt/webrt?serial_num=3427
-------------------------------------------------------------------------

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



-------------------------------------------- Managed by Request Tracker