thanks
Il 03/16/2017 11:04 PM, Andres Solarte ha scritto:
Hello Carmine, what I do is create a script (connect.py) to start
session as follows:
# -*- coding: utf-8 -*-
import os
import sys
def launch(location,mapset,db):
# path to the GRASS GIS launch script
grass7bin = '/usr/bin/grass72'
# Set GISDBASE environment variable
os.environ['GISDBASE'] = gisdb
# query GRASS 7 itself for its GISBASE
gisbase = "/usr/lib/grass72"
os.environ['GISBASE'] = gisbase
# define GRASS-Python environment
gpydir = "/usr/lib/grass72/etc/python"
sys.path.append(gpydir)
# import GRASS Python bindings
import grass.script.setup as gsetup
############ launch session
gsetup.init(gisbase, gisdb, location, mapset)
After that I call the function from my main script and execute the
functions as follows
#!/usr/bin/env python # -*- coding: UTF-8 -*- import connect #this is
the script to connect with grass
gisdb = "/path/to/the/main/folder/"
location = "/path/to/the/location/"
mapset = "/path/to/the/mapset/"
#Connect connect.launch(location,mapset,gisdb) import grass.script as
gscript
#Now I can execute the functions using gscript.run_command as follows:
#Load map
gscript.run_command("r.in.gdal", input="input image", flags='e'
,output = "map name")
#Set region gscript.run_command('g.region', n=north, s=south, e=east,
w=west, ewres=resX, nsres=resY)
I hope this helps
Regards,
Andrés.
2017-03-16 12:53 GMT-03:00 Carmine Massarelli
<[email protected]
<mailto:[email protected]>>:
Dear,
I have prepared a couple of scripts to execute a batch job: the
first opens a csv file and formats the data for the second
(invoked from the first) that include some grass functionality.
The second script uses grass functionality without starting grass
explicitly.
If I execute the first script from shell all it is working, but if
i invoke it from a php button (shell_exec('python
path/script.py')) I receive the error: /Cannot find GRASS GIS 7
start script (['grass72', '--config', 'path'])/
I saw that it is related to subprocess (here the code):
/p = subprocess.Popen(startcmd,
shell=False,stdout=subprocess.PIPE, stderr=subprocess.PIPE)//
//out, err = p.communicate()//
//if p.returncode != 0://
// print >>sys.stderr, "ERROR: Cannot find GRASS GIS 7 start
script (%s)" % startcmd//
// sys.exit(-1)//
//gisbase = out.strip('\n\r')/
but I am not expert about this, so I ask for your help.
What could I do?
I have already set sudoers www-data ALL=NOPASSWD: ALL and
checked permission.
Thanks in advance
carmine
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Dr. Nat. Carmine Massarelli, Ph.D.
Environmental Technologist
IRSA-CNR
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