[GRASS-dev] r.buffer distance overshoot in GRASS 7.0 with geographic coordinates

Andy Wickert wickert at colorado.edu
Mon Feb 13 11:57:46 EST 2012


Thanks a ton, Markus! Just recompiled and it works perfectly.
Andy


On Mon, Feb 13, 2012 at 7:44 AM, Markus Metz
<markus.metz.giswork at googlemail.com> wrote:
> On Mon, Feb 13, 2012 at 10:27 AM, Andy Wickert <wickert at colorado.edu> wrote:
>> Hi developers,
>>
>> I have just taken a script that uses r.buffer in GRASS 6.4 and moved
>> it to GRASS 7.0. I am using geographic coordinates, and in GRASS 6.4,
>> r.buffer (as advertised) worked just fine in meters by doing the
>> appropriate transformation. However, in GRASS 7.0, the buffer is ~20
>> times too wide (a quick guess), which doesn't indicate conversion
>> to... well, anything I can think of. The units seem to be working fine
>> (km are way bigger than meters), so I'm guessing that something got
>> misplaced somewhere in the source and is rescaling everything. Does
>> anyone have an idea of what is going on / how to fix it?
>>
> Fixed in r50792.
>
> Markus M
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