* Nikos Alexandris <n...@nikosalexandris.net> [2015-05-02 11:38:23 +0300]:
> * Nikos Alexandris <n...@nikosalexandris.net> [2015-05-02 10:21:06 +0300]: > > > > > > > > > * Jake Chila <jake.ch...@gmail.com> [2015-05-01 11:33:01 -0300]: > > > > > hi all, > > > > > > So I am trying to run i.atcorr but every time I run it, the whole program > > > goes unresponsive and crashes. Has anyone experienced this before? Is > > > there > > > any way I can fix it? > > > > > > One thing that might be causing it is my parameters text file. I'm not > > > totally sure I understand what all the fields are but here is an example > > > of > > > the parameter files I have created. This one is for the second band of a > > > landsat 5 TM scene over central British Columbia > > > > > > 7 > > > 8 15 18.49 -116.027755 50.267045 > > > 2 > > > 0 > > > 0 > > > 0 > > > -1000 > > > 26 > > > > Hi Jake. > > > > Please have a close look in the manual. As well, here: > > <http://grasswiki.osgeo.org/wiki/Atmospheric_correction#Atmospheric_correction>. > > > > If Landsat is your sensor to work with, here is a script around > > i.atcorr: <https://github.com/NikosAlexandris/i.landsat.atcorr>. I > > haven't used this in Windows though, and to upload it into grass-addons > > I need to test it more. > > Unfortunately, something is broken currently and I have no time to check > it :-(. Jake, if you read Python, you could, however, make use of the Parameters python class defined in <https://github.com/NikosAlexandris/i.landsat.atcorr/blob/master/parameters.py>. I will create a text file with the requested parameters suitable for i.atcorr. An example inside python: # import class from parameters import Parameters # check it out with help() # help(Parameters) # create object with desired six s parameters for i.atcorr ssp = Parameters(geo=8, mon=11, day=8, gmt='23:42', lon=22.2, lat=33.3, atm=2, aer=1, vis=10, aod=None, xps=-200, xpp=-1000, bnd=26) # what is it like? print ssp Parameters for the 6S atmospheric correction model: 8 # Geometrical conditions 11 8 23.70 22.200000 33.300000 # Month Day GMT Center Longitude Latitude [DD] 2 # Atmospheric model [index] 1 # Aerosols model [index] 10.0 # Visibility [km] -200.0 # Mean Target Altitude [negative km] -1000 # Sensor Altitude rel. to xps [negative km] or SatelliteBorn [-1000] 26 # Satellite Band Number [index] # export it to an ascii file p6s.export_ascii("ssp_example.txt") # what is inside the exported file? cat p6s_example.txt 8 # Geometrical conditions 11 8 23.70 22.200000 33.300000 # Month Day GMT Center Longitude Latitude [DD] 2 # Atmospheric model [index] 1 # Aerosols model [index] 10.0 # Visibility [km] -200.0 # Mean Target Altitude [negative km] -1000 # Sensor Altitude rel. to xps [negative km] or SatelliteBorn [-1000] 26 # Satellite Band Number [index] Nikos _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user