[GRASS-dev] redirect graphic output of r.spread

Hamish hamish_b at yahoo.com
Wed Sep 18 12:29:24 PDT 2013

Margherita wrote:
>>> Any idea on how to (and IF it's possible to) redirect the graphic
>>> output of r.spread module to a gif or mov or avi file instead of
>>> to (or beside to) the monitor?

>> not directly, but you might see the "screencast" section in:
>>   http://grasswiki.osgeo.org/wiki/Movies
> Thanks for the link. But I don't understand how to put this in practice.
> I mean, as far as I understand, you're suggesting to run r.spread in a loop,
> each step producing a final map as image and then compose together as a video,
> right?

nope, the "screencast" is to record the changes on the screen as
they happen, like putting a movie camera pointed at the screen. (including the
cursor if it happens to be in-shot)

As-written I don't think there's a way to have r.spread write out static images
per-iteration to encode later into a video from individual frames.



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