QGIS/python/plugins/grassprovider/ext/r_series_interp.py

79 lines
3.3 KiB
Python

"""
***************************************************************************
r_series_interp.py
------------------
Date : February 2016
Copyright : (C) 2016 by Médéric Ribreux
Email : medspx at medspx dot fr
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = "Médéric Ribreux"
__date__ = "February 2016"
__copyright__ = "(C) 2016, Médéric Ribreux"
import os
from grassprovider.grass_utils import GrassUtils
from qgis.PyQt.QtCore import QCoreApplication
def checkParameterValuesBeforeExecuting(alg, parameters, context):
"""Verify if we have the right parameters"""
datapos = alg.parameterAsDouble(parameters, "datapos", context)
infile = alg.parameterAsString(parameters, "infile", context)
output = alg.parameterAsString(parameters, "output", context)
outfile = alg.parameterAsString(parameters, "outfile", context)
if datapos and infile:
return False, QCoreApplication.translate(
"GrassUtils",
"You need to set either inline data positions or an input data positions file!",
)
if output and outfile:
return False, QCoreApplication.translate(
"GrassUtils",
"You need to set either sampling data positions or an output sampling data positions file!",
)
if not (datapos or infile or output or outfile):
return False, QCoreApplication.translate(
"GrassUtils", "You need to set input and output data positions parameters!"
)
return True, None
def processCommand(alg, parameters, context, feedback):
# We temporary remove the output directory
alg.processCommand(parameters, context, feedback, True)
def processOutputs(alg, parameters, context, feedback):
# We take all the outputs and we export them to the output directory
outputDir = alg.parameterAsString(parameters, "output_dir", context)
output = alg.parameterAsString(parameters, "output", context)
outfile = alg.parameterAsString(parameters, "outfile", context)
outs = []
if output:
outs = output.split(",")
elif outfile:
# Handle file manually to find the name of the layers
with open(outfile) as f:
for line in f:
if "|" in line:
outs.append(line.split("|")[0])
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
for out in outs:
# We need to export the raster with all its bands and its color table
fileName = os.path.join(outputDir, out)
outFormat = GrassUtils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(out, fileName, True, outFormat, createOpt, metaOpt)