[GRASS-user] FW: Temporal + export

Fri May 6 14:24:34 PDT 2016

Hola Verooooo!
Thanks you for answer!
I'm working to solve it. Apparently all my imported rasters are zero cell values. There is something wrong with my gdalwarp command... I'll tell you later...
Thanks!!!

Date: Thu, 5 May 2016 14:07:56 -0300
Subject: Re: [GRASS-user] FW: Temporal + export
From: veroandreo at gmail.com
To: matialecastillo at hotmail.com
CC: grass-user at lists.osgeo.org

Hola Mati!!!!!
I'm so glad you are using grass and writing to the list! :)
Markus won me, but I had the same pieces of advice.
First idea/advice: do not use folder names (nor file names) with spaces, second: maybe you wanna update to 7.0.4, the new stable release.
I've tried here (grass71, fedora23 box) with: 
t.rast.export input=cla at clorofila output=cla.gzip compression=gzip directory=/home/veroandreo where="start_time >= '2013-01-01'"

Checking GDAL data type and nodata value... 100%Using GDAL data type <Float32>Input raster map contains cells with NULL-value (no-data). The value -nanwill be used to represent no-data values in the input map. You can specifya nodata value with the nodata option.Exporting raster data to GTiff format... 100%r.out.gdal complete. File <A20130012013008.L3m_8D_CHL_chlor_a_4km_arg.tif>created....tar xvf cla.gzip

all is there and looks fine...
The nodata option comes from r.out.gdal [1]. t.rast.export uses it to export maps in the strds. Don't know about gdalwarp, but in any case, if you will then import data into R for other analyses, you can change the value there.
Un abrazo, Vero
[1] https://grass.osgeo.org/grass70/manuals/r.out.gdal.html

2016-05-05 12:41 GMT-03:00 Matías Alejandro Castillo Moine <matialecastillo at hotmail.com>:

Hi everyone! 
I never used a list... I think I made a mistake when sent the message yesterday...
I was construct a strds in grass 7.0.3, and I want to export it for use in R to do some statistics not included with tgrass.. But when I do the export operation, I receive this message: 
Usising the GUI: t.rast.export --overwrite --verbose input=LST2 at MOD11A2 output=C:\SIG\Base de datos area de estudio\Datasets_R\LSR_R compression=gzipTraceback (most recent call last):  File "C:\OSGEO4~1\apps\grass\grass-7.0.3/scripts/t.rast.export.py", line 87, in <module>    main()  File "C:\OSGEO4~1\apps\grass\grass-7.0.3/scripts/t.rast.export.py", line 82, in main    _input, output, compression, directory, where, _format,"strds")  File "C:\OSGEO4~1\apps\grass\grass-7.0.3\etc\python\grass\temporal\stds_export.py", line 268, in export_stds    new_cwd = tempfile.mkdtemp(dir=directory)  File "C:\OSGEO4~1\apps\Python27\lib\tempfile.py", line329, in mkdtemp    _os.mkdir(file, 0700)WindowsError: [Error 3] El sistema no puede encontrar laruta especificada: '/tmp\\tmppi2oh1'(Wed May 04 16:09:44 2016) Comando finalizado. (1 segundos)                     

In python (very difficult): 
input="LST2 at MOD11A2"output="LST_R.tar.gz"compression="gzip"directory="C:/SIG/Base de datos area de estudio/Datasets_R/"where=Noneformat_="GTiff"type_="strds"tgis.export_stds(input, output, compression, directory, where, format_, type_)>>>Traceback (most recent call last):  File "<input>", line 1, in <module>  File "C:\OSGEO4~1\apps\grass\grass-7.0.3\etc\python\grass\temporal\stds_export.py", line 298, in export_stds    rows, tar, list_file, new_cwd, fs, format_)  File "C:\OSGEO4~1\apps\grass\grass-7.0.3\etc\python\grass\temporal\stds_export.py", line 74, in _export_raster_maps_as_gdal    nodata = max_val + 1TypeError: unsupported operand type(s) for +: 'NoneType' and 'int'

Some idea? I was try to set the nodata values to 0 using gdalwarp but this doesn't work apparently...  
Thanks you!!
Matías 		 	   		   		 	   		  

_______________________________________________

grass-user mailing list

grass-user at lists.osgeo.org

http://lists.osgeo.org/mailman/listinfo/grass-user

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20160506/45c64a9b/attachment.html>