mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-30 00:07:09 -04:00
251 lines
8.0 KiB
Python
251 lines
8.0 KiB
Python
"""
|
|
***************************************************************************
|
|
merge.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.PyQt.QtGui import QIcon
|
|
|
|
from qgis.core import (
|
|
QgsRasterFileWriter,
|
|
QgsProcessing,
|
|
QgsProcessingException,
|
|
QgsProcessingParameterDefinition,
|
|
QgsProcessingParameterMultipleLayers,
|
|
QgsProcessingParameterEnum,
|
|
QgsProcessingParameterString,
|
|
QgsProcessingParameterBoolean,
|
|
QgsProcessingParameterNumber,
|
|
QgsProcessingParameterRasterDestination,
|
|
)
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
from processing.tools.system import isWindows
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class merge(GdalAlgorithm):
|
|
INPUT = "INPUT"
|
|
PCT = "PCT"
|
|
SEPARATE = "SEPARATE"
|
|
OPTIONS = "OPTIONS"
|
|
EXTRA = "EXTRA"
|
|
DATA_TYPE = "DATA_TYPE"
|
|
NODATA_INPUT = "NODATA_INPUT"
|
|
NODATA_OUTPUT = "NODATA_OUTPUT"
|
|
OUTPUT = "OUTPUT"
|
|
|
|
TYPES = [
|
|
"Byte",
|
|
"Int16",
|
|
"UInt16",
|
|
"UInt32",
|
|
"Int32",
|
|
"Float32",
|
|
"Float64",
|
|
"CInt16",
|
|
"CInt32",
|
|
"CFloat32",
|
|
"CFloat64",
|
|
"Int8",
|
|
]
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
self.addParameter(
|
|
QgsProcessingParameterMultipleLayers(
|
|
self.INPUT, self.tr("Input layers"), QgsProcessing.SourceType.TypeRaster
|
|
)
|
|
)
|
|
self.addParameter(
|
|
QgsProcessingParameterBoolean(
|
|
self.PCT,
|
|
self.tr("Grab pseudocolor table from first layer"),
|
|
defaultValue=False,
|
|
)
|
|
)
|
|
self.addParameter(
|
|
QgsProcessingParameterBoolean(
|
|
self.SEPARATE,
|
|
self.tr("Place each input file into a separate band"),
|
|
defaultValue=False,
|
|
)
|
|
)
|
|
|
|
nodata_param = QgsProcessingParameterNumber(
|
|
self.NODATA_INPUT,
|
|
self.tr("Input pixel value to treat as NoData"),
|
|
type=QgsProcessingParameterNumber.Type.Double,
|
|
defaultValue=None,
|
|
optional=True,
|
|
)
|
|
nodata_param.setFlags(
|
|
nodata_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced
|
|
)
|
|
self.addParameter(nodata_param)
|
|
|
|
nodata_out_param = QgsProcessingParameterNumber(
|
|
self.NODATA_OUTPUT,
|
|
self.tr("Assign specified NoData value to output"),
|
|
type=QgsProcessingParameterNumber.Type.Double,
|
|
defaultValue=None,
|
|
optional=True,
|
|
)
|
|
nodata_out_param.setFlags(
|
|
nodata_out_param.flags()
|
|
| QgsProcessingParameterDefinition.Flag.FlagAdvanced
|
|
)
|
|
self.addParameter(nodata_out_param)
|
|
|
|
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(
|
|
QgsProcessingParameterEnum(
|
|
self.DATA_TYPE,
|
|
self.tr("Output data type"),
|
|
self.TYPES,
|
|
allowMultiple=False,
|
|
defaultValue=5,
|
|
)
|
|
)
|
|
|
|
self.addParameter(
|
|
QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr("Merged"))
|
|
)
|
|
|
|
def name(self):
|
|
return "merge"
|
|
|
|
def displayName(self):
|
|
return self.tr("Merge")
|
|
|
|
def group(self):
|
|
return self.tr("Raster miscellaneous")
|
|
|
|
def groupId(self):
|
|
return "rastermiscellaneous"
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, "images", "gdaltools", "merge.png"))
|
|
|
|
def commandName(self):
|
|
return "gdal_merge"
|
|
|
|
def getConsoleCommands(self, parameters, context, feedback, executing=True):
|
|
out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
|
|
self.setOutputValue(self.OUTPUT, out)
|
|
|
|
arguments = []
|
|
if self.parameterAsBoolean(parameters, self.PCT, context):
|
|
arguments.append("-pct")
|
|
|
|
if self.parameterAsBoolean(parameters, self.SEPARATE, context):
|
|
arguments.append("-separate")
|
|
|
|
if (
|
|
self.NODATA_INPUT in parameters
|
|
and parameters[self.NODATA_INPUT] is not None
|
|
):
|
|
nodata_input = self.parameterAsDouble(
|
|
parameters, self.NODATA_INPUT, context
|
|
)
|
|
arguments.append("-n")
|
|
arguments.append(str(nodata_input))
|
|
|
|
if (
|
|
self.NODATA_OUTPUT in parameters
|
|
and parameters[self.NODATA_OUTPUT] is not None
|
|
):
|
|
nodata_output = self.parameterAsDouble(
|
|
parameters, self.NODATA_OUTPUT, context
|
|
)
|
|
arguments.append("-a_nodata")
|
|
arguments.append(str(nodata_output))
|
|
|
|
data_type = self.parameterAsEnum(parameters, self.DATA_TYPE, context)
|
|
if self.TYPES[data_type] == "Int8" and GdalUtils.version() < 3070000:
|
|
raise QgsProcessingException(
|
|
self.tr("Int8 data type requires GDAL version 3.7 or later")
|
|
)
|
|
|
|
arguments.append("-ot " + self.TYPES[data_type])
|
|
|
|
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)
|
|
|
|
options = self.parameterAsString(parameters, self.OPTIONS, context)
|
|
if options:
|
|
arguments.extend(GdalUtils.parseCreationOptions(options))
|
|
|
|
if self.EXTRA in parameters and parameters[self.EXTRA] not in (None, ""):
|
|
extra = self.parameterAsString(parameters, self.EXTRA, context)
|
|
arguments.append(extra)
|
|
|
|
arguments.append("-o")
|
|
arguments.append(out)
|
|
|
|
# Always write input files to a text file in case there are many of them and the
|
|
# length of the command will be longer then allowed in command prompt
|
|
list_file = GdalUtils.writeLayerParameterToTextFile(
|
|
filename="mergeInputFiles.txt",
|
|
alg=self,
|
|
parameters=parameters,
|
|
parameter_name=self.INPUT,
|
|
context=context,
|
|
quote=True,
|
|
executing=executing,
|
|
)
|
|
arguments.append("--optfile")
|
|
arguments.append(list_file)
|
|
|
|
return [
|
|
self.commandName() + (".bat" if isWindows() else ".py"),
|
|
GdalUtils.escapeAndJoin(arguments),
|
|
]
|