[GRASS-user] Documentation of distances in v.buffer?

[Markus Metz]

On Wed, May 17, 2017 at 4:37 PM, Moritz Lennert <
mlennert at club.worldonline.be> wrote:
>
> On 17/05/17 16:20, Nikos Alexandris wrote:
>>
>> Dear community,
>>
>> in v.buffer there is distance and minordistance (see manual).
>> Perhaps this can be better explained.
>>
>> Is there an on-the-fly identification of the longest and shortest axis
>> of the vector shape to be buffered?  Does this apply only to certain
>> types?
>
>
> This only makes sens for buffers around points, AFAIU: if you only supply
'distance' you get circular buffers, if you also supply 'minordistance' you
get ellipsoidal buffers.

The minordistance option is used only with the GRASS internal buffering
method which never worked. The default buffering method of v.buffer uses
GEOS which does not support ellipsoidal buffers defined by major and minor
distances.

Markus M
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