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"""
***************************************************************************
fillnodata.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* 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__ = "Victor Olaya"
__date__ = "August 2012"
__copyright__ = "(C) 2012, Victor Olaya"
import os
from qgis.core import (
QgsProcessingAlgorithm,
QgsRasterFileWriter,
QgsProcessingException,
QgsProcessingParameterDefinition,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterBand,
QgsProcessingParameterNumber,
QgsProcessingParameterBoolean,
QgsProcessingParameterString,
QgsProcessingParameterRasterDestination,
)
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.tools.system import isWindows
from processing.algs.gdal.GdalUtils import GdalUtils
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
class fillnodata(GdalAlgorithm):
INPUT = "INPUT"
BAND = "BAND"
DISTANCE = "DISTANCE"
ITERATIONS = "ITERATIONS"
NO_MASK = "NO_MASK"
MASK_LAYER = "MASK_LAYER"
OPTIONS = "OPTIONS"
EXTRA = "EXTRA"
OUTPUT = "OUTPUT"
def __init__(self):
super().__init__()
def initAlgorithm(self, config=None):
self.addParameter(
QgsProcessingParameterRasterLayer(self.INPUT, self.tr("Input layer"))
)
self.addParameter(
QgsProcessingParameterBand(
self.BAND,
self.tr("Band number"),
1,
parentLayerParameterName=self.INPUT,
)
)
self.addParameter(
QgsProcessingParameterNumber(
self.DISTANCE,
self.tr(
"Maximum distance (in pixels) to search out for values to interpolate"
),
type=QgsProcessingParameterNumber.Type.Integer,
minValue=0,
defaultValue=10,
)
)
self.addParameter(
QgsProcessingParameterNumber(
self.ITERATIONS,
self.tr(
"Number of smoothing iterations to run after the interpolation"
),
type=QgsProcessingParameterNumber.Type.Integer,
minValue=0,
defaultValue=0,
)
)
# The -nomask option is no longer supported since GDAL 3.4 and
# it doesn't work as expected even using GDAL < 3.4 https://github.com/OSGeo/gdal/pull/4201
nomask_param = QgsProcessingParameterBoolean(
self.NO_MASK,
self.tr("Do not use the default validity mask for the input band"),
defaultValue=False,
optional=True,
)
nomask_param.setFlags(
nomask_param.flags() | QgsProcessingParameterDefinition.Flag.FlagHidden
)
self.addParameter(nomask_param)
self.addParameter(
QgsProcessingParameterRasterLayer(
self.MASK_LAYER, self.tr("Validity mask"), optional=True
)
)
options_param = QgsProcessingParameterString(
self.OPTIONS,
self.tr("Additional creation options"),
defaultValue="",
optional=True,
)
options_param.setFlags(
options_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced
)
options_param.setMetadata({"widget_wrapper": {"widget_type": "rasteroptions"}})
self.addParameter(options_param)
extra_param = QgsProcessingParameterString(
self.EXTRA,
self.tr("Additional command-line parameters"),
defaultValue=None,
optional=True,
)
extra_param.setFlags(
extra_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced
)
self.addParameter(extra_param)
self.addParameter(
QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr("Filled"))
)
def name(self):
return "fillnodata"
def displayName(self):
return self.tr("Fill NoData")
def group(self):
return self.tr("Raster analysis")
def groupId(self):
return "rasteranalysis"
def commandName(self):
return "gdal_fillnodata"
def flags(self):
return super().flags() | QgsProcessingAlgorithm.Flag.FlagDisplayNameIsLiteral
def getConsoleCommands(self, parameters, context, feedback, executing=True):
raster = self.parameterAsRasterLayer(parameters, self.INPUT, context)
if raster is None:
raise QgsProcessingException(
self.invalidRasterError(parameters, self.INPUT)
)
input_details = GdalUtils.gdal_connection_details_from_layer(raster)
out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
self.setOutputValue(self.OUTPUT, out)
arguments = [
input_details.connection_string,
out,
"-md",
str(self.parameterAsInt(parameters, self.DISTANCE, context)),
]
nIterations = self.parameterAsInt(parameters, self.ITERATIONS, context)
if nIterations:
arguments.append("-si")
arguments.append(str(nIterations))
arguments.append("-b")
arguments.append(str(self.parameterAsInt(parameters, self.BAND, context)))
mask = self.parameterAsRasterLayer(parameters, self.MASK_LAYER, context)
if mask:
arguments.append("-mask")
arguments.append(mask.source())
output_format = QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1])
if not output_format:
raise QgsProcessingException(self.tr("Output format is invalid"))
arguments.append("-of")
arguments.append(output_format)
if input_details.credential_options:
arguments.extend(input_details.credential_options_as_arguments())
if self.EXTRA in parameters and parameters[self.EXTRA] not in (None, ""):
extra = self.parameterAsString(parameters, self.EXTRA, context)
arguments.append(extra)
# Until https://github.com/OSGeo/gdal/issues/7651 is fixed, creation options should be latest argument
options = self.parameterAsString(parameters, self.OPTIONS, context)
if options:
arguments.extend(GdalUtils.parseCreationOptions(options))
return [
self.commandName() + (".bat" if isWindows() else ".py"),
GdalUtils.escapeAndJoin(arguments),
]
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