[GRASS-user] Re: [GRASS-dev] New version of the r.landscape.evol.py Landscape Evolution module uploaded to the GRASS Addons repository.

[Markus Metz]

Isaac Ullah wrote:
> Yes, this is certainly true. We have kept backwards compatibility with a
> flag to use r.terraflow if the user has GRASS 6.4 or less.

GRASS 6.4 is the next stable release for some time to come, thus new
addons for GRASS 6.x should IMHO be tailored for 6.4. Either you
advocate the backporting of the 6.5 version of r.watershed to 6.4 ;-)
or you make r.terraflow the default, with a flag indicating to use
r.watershed.

Anyway, IMHO, newly updated addons should run in 6.4 with the default settings.

Markus M

>
Markus Metz wrote:
>>
>> Isaac Ullah wrote:
>> >
>> >
>> > [The new "r.landscape.evol.py"] takes advantage of the advanced MFD flow
>> > routing capabilities of the newly
>> > updated r.watershed module, which produced more accurate stream
>> > networks,
>> > and flow accumulation values.
>>
>> Nice, but "r.landscape.evol.py" works only with the GRASS 6.5 version
>> of r.watershed, otherwise
>> r.terraflow must be used. Contrary to the 6.5 version, the 6.4 version
>> of r.watershed only supports SFD (D8) and only integer DEMs, floating
>> point DEMs are truncated to integer(, and it's slower and uses more
>> memory).
>>
>> Markus M
>
>
>
> --
> Isaac I Ullah, M.A.
>
> Archaeology PhD Candidate,
> ASU School of Evolution and Social Change
>
> Research Assistant,
> Mediterranean Landscape Dynamics Project
> ***************************************************
> isaac.ullah at asu.edu
> ullah at archaeologist.com
>
> http://www.public.asu.edu/~iullah
> ***************************************************
>