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"""
***************************************************************************
r_blend_rgb.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
def processInputs(alg, parameters, context, feedback):
if "first" and "second" in alg.exportedLayers:
return
# Use v.in.ogr
for name in ["first", "second"]:
alg.loadRasterLayerFromParameter(name, parameters, context, False, None)
alg.postInputs(context)
def processCommand(alg, parameters, context, feedback):
# We need to remove all outputs
alg.processCommand(parameters, context, feedback, True)
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# Export each color raster
colors = ["red", "green", "blue"]
for color in colors:
fileName = os.path.normpath(
alg.parameterAsOutputLayer(parameters, f"output_{color}", context)
)
outFormat = GrassUtils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(
f"blended.{color[0]}", fileName, True, outFormat, createOpt, metaOpt
)
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