mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-31 00:06:02 -04:00
137 lines
5.6 KiB
Python
137 lines
5.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
rearrange_bands.py
|
|
---------------------
|
|
Date : August 2018
|
|
Copyright : (C) 2018 by Mathieu Pellerin
|
|
Email : nirvn dot asia 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__ = 'Mathieu Pellerin'
|
|
__date__ = 'August 2018'
|
|
__copyright__ = '(C) 2018, Mathieu Pellerin'
|
|
|
|
import os
|
|
import re
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
|
|
from qgis.core import (QgsRasterFileWriter,
|
|
QgsProcessingException,
|
|
QgsProcessingParameterEnum,
|
|
QgsProcessingParameterDefinition,
|
|
QgsProcessingParameterRasterLayer,
|
|
QgsProcessingParameterBand,
|
|
QgsProcessingParameterString,
|
|
QgsProcessingParameterRasterDestination)
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class rearrange_bands(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
BANDS = 'BANDS'
|
|
OPTIONS = 'OPTIONS'
|
|
DATA_TYPE = 'DATA_TYPE'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
|
|
self.TYPES = [self.tr('Use Input Layer Data Type'), 'Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64', 'CInt16', 'CInt32', 'CFloat32', 'CFloat64']
|
|
|
|
self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT, self.tr('Input layer')))
|
|
self.addParameter(QgsProcessingParameterBand(self.BANDS,
|
|
self.tr('Selected band(s)'),
|
|
None,
|
|
self.INPUT,
|
|
allowMultiple=True))
|
|
|
|
options_param = QgsProcessingParameterString(self.OPTIONS,
|
|
self.tr('Additional creation options'),
|
|
defaultValue='',
|
|
optional=True)
|
|
options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
|
|
options_param.setMetadata({
|
|
'widget_wrapper': {
|
|
'class': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}})
|
|
self.addParameter(options_param)
|
|
|
|
dataType_param = QgsProcessingParameterEnum(self.DATA_TYPE,
|
|
self.tr('Output data type'),
|
|
self.TYPES,
|
|
allowMultiple=False,
|
|
defaultValue=0)
|
|
dataType_param.setFlags(dataType_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
|
|
self.addParameter(dataType_param)
|
|
|
|
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
|
|
self.tr('Converted')))
|
|
|
|
def name(self):
|
|
return 'rearrange_bands'
|
|
|
|
def displayName(self):
|
|
return self.tr('Rearrange bands')
|
|
|
|
def group(self):
|
|
return self.tr('Raster conversion')
|
|
|
|
def groupId(self):
|
|
return 'rasterconversion'
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'translate.png'))
|
|
|
|
def shortHelpString(self):
|
|
return self.tr("This algorithm creates a new raster using selected band(s) from a given raster layer.\n\n"
|
|
"The algorithm also makes it possible to reorder the bands for the newly-created raster.")
|
|
|
|
def commandName(self):
|
|
return 'gdal_translate'
|
|
|
|
def getConsoleCommands(self, parameters, context, feedback, executing=True):
|
|
inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
|
|
if inLayer is None:
|
|
raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT))
|
|
|
|
out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
|
|
self.setOutputValue(self.OUTPUT, out)
|
|
|
|
arguments = []
|
|
|
|
bands = self.parameterAsInts(parameters, self.BANDS, context)
|
|
for band in bands:
|
|
arguments.append('-b {}'.format(band))
|
|
|
|
data_type = self.parameterAsEnum(parameters, self.DATA_TYPE, context)
|
|
if data_type:
|
|
arguments.append('-ot ' + self.TYPES[data_type])
|
|
|
|
arguments.append('-of')
|
|
arguments.append(QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1]))
|
|
|
|
options = self.parameterAsString(parameters, self.OPTIONS, context)
|
|
if options:
|
|
arguments.extend(GdalUtils.parseCreationOptions(options))
|
|
|
|
arguments.append(inLayer.source())
|
|
arguments.append(out)
|
|
|
|
return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
|