Re: [GRASS-dev] redirect graphic output of r.spread
Hi, On Wed, Sep 18, 2013 at 1:07 AM, Hamish hamis...@yahoo.com wrote: 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? I had also thought something of the kind, but I was looking for a way to save the detailed fire evolution as it is generated by r.spread, hence a way to redirect the output directly to a video, or at least save several static images while r.spread is running, and then to compose them as a movie. Is that feasible? Thanks -- Best regards, Dr. Margherita DI LEO Scientific / technical project officer European Commission - DG JRC Institute for Environment and Sustainability (IES) Via Fermi, 2749 I-21027 Ispra (VA) - Italy - TP 261 Tel. +39 0332 78 3600 margherita.di-...@jrc.ec.europa.eu Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission. ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] redirect graphic output of r.spread
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? Hamish: 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. regards, Hamish ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] redirect graphic output of r.spread
On Wed, Sep 18, 2013 at 3:29 PM, Hamish hamis...@yahoo.com wrote: 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? Hamish: 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. So, if I understand correctly this is a bug in r.spread. For GRASS 6 it may seem as feature request but for GRASS 7 it is a bug. Expected output is a series of maps which you can put into a temporal dataset, export as images or analyze individually. Visualization is another issue but for GRASS 7, -d switch will newer be enabled. I'm not familiar with r.spread much, only from manual, so correct me if I'm wrong. Maybe it is not so complicated to rewrite it, is somebody familiar with the code to say something about it? Vaclav regards, Hamish ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] redirect graphic output of r.spread
Hi! 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? Many thanks in advance -- Best regards, Dr. Margherita DI LEO Scientific / technical project officer European Commission - DG JRC Institute for Environment and Sustainability (IES) Via Fermi, 2749 I-21027 Ispra (VA) - Italy - TP 261 Tel. +39 0332 78 3600 margherita.di-...@jrc.ec.europa.eu Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission. ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] redirect graphic output of r.spread
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 Hamish ps- I just added a completely synthetic example to the wiki page, not as good as the sample download but you can run it directly from the NC sample dataset. http://grasswiki.osgeo.org/wiki/How_to_create_parameters_to_run_r.ros#Example ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
