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>>Gesendet: Mittwoch, 07. März 2018 um 10:52 Uhr
Von: "Johnn Wani" <johnn.nith@gmail.com>
Betreff: Query regarding r.horizon in GRASS GISDear sir,
Greetings from India,I am a student from India. I am using GRASS GIS 7.2.2 as a standalone in Windows 10 operating system.
My aim is to use r.horizon module to calculate horizon at a point in my study area and save it to a .csv file. As I run the following command in the console window on GRASS GIS:
r.horizon -d --overwrite elevation=n34_e077_1arc_v3@PERMANENT direction=90 step=22.5 coordinates=741302,3793829 file=C:\Users\user\horizon.csv
But I am receiving an error message as attached herewith. Earlier also I got the same error message but it was due to non-alignment of my DEM.
This time my DEM is aligned here is the output of g.region -p command:g.region -p
projection: 3 (Latitude-Longitude)
zone: 0
datum: wgs84
ellipsoid: wgs84
north: 35:00:00.5N
south: 33:59:59.5N
west: 76:59:59.5E
east: 78:00:00.5E
nsres: 0:00:01
ewres: 0:00:01
rows: 3601
cols: 3601
cells: 12967201
(Wed Mar 07 15:15:14 2018) Command finished (0 sec)Please help
Sorry for any inconvenience caused by this mailWith sincere regards--
JOHN MOHD WANIPh.D. Research Scholar
Department of Civil EngineeringIIT Roorkee, Uttarakhand, INDIA-247667
Mail: johnn.nith@gmail.com[mailto:johnn.nith@gmail.com]
(M): +91-8126910585
please post wich winGRASS version, standalone or OSGeo4W?
have a look into the manual of r.horizon:
https://grass.osgeo.org/grass74/manuals/r.horizon.html
there is an example with the NC sample data set.
test this example on your computer and see if it works.
kind regards
Helmut