mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
246 lines
12 KiB
Python
246 lines
12 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
ClipRasterByMask.py
|
|
---------------------
|
|
Date : September 2013
|
|
Copyright : (C) 2013 by Alexander Bruy
|
|
Email : alexander bruy 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__ = 'Alexander Bruy'
|
|
__date__ = 'September 2013'
|
|
__copyright__ = '(C) 2013, Alexander Bruy'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
|
|
from qgis.core import (QgsRasterFileWriter,
|
|
QgsProcessing,
|
|
QgsProcessingException,
|
|
QgsProcessingParameterDefinition,
|
|
QgsProcessingParameterFeatureSource,
|
|
QgsProcessingParameterRasterLayer,
|
|
QgsProcessingParameterCrs,
|
|
QgsProcessingParameterEnum,
|
|
QgsProcessingParameterString,
|
|
QgsProcessingParameterNumber,
|
|
QgsProcessingParameterBoolean,
|
|
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 ClipRasterByMask(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
MASK = 'MASK'
|
|
SOURCE_CRS = 'SOURCE_CRS'
|
|
TARGET_CRS = 'TARGET_CRS'
|
|
NODATA = 'NODATA'
|
|
ALPHA_BAND = 'ALPHA_BAND'
|
|
CROP_TO_CUTLINE = 'CROP_TO_CUTLINE'
|
|
KEEP_RESOLUTION = 'KEEP_RESOLUTION'
|
|
SET_RESOLUTION = 'SET_RESOLUTION'
|
|
X_RESOLUTION = 'X_RESOLUTION'
|
|
Y_RESOLUTION = 'Y_RESOLUTION'
|
|
OPTIONS = 'OPTIONS'
|
|
DATA_TYPE = 'DATA_TYPE'
|
|
MULTITHREADING = 'MULTITHREADING'
|
|
EXTRA = 'EXTRA'
|
|
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(QgsProcessingParameterFeatureSource(self.MASK,
|
|
self.tr('Mask layer'),
|
|
[QgsProcessing.TypeVectorPolygon]))
|
|
self.addParameter(QgsProcessingParameterCrs(self.SOURCE_CRS,
|
|
self.tr('Source CRS'),
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterCrs(self.TARGET_CRS,
|
|
self.tr('Target CRS'),
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterNumber(self.NODATA,
|
|
self.tr('Assign a specified nodata value to output bands'),
|
|
type=QgsProcessingParameterNumber.Double,
|
|
defaultValue=None,
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterBoolean(self.ALPHA_BAND,
|
|
self.tr('Create an output alpha band'),
|
|
defaultValue=False))
|
|
self.addParameter(QgsProcessingParameterBoolean(self.CROP_TO_CUTLINE,
|
|
self.tr('Match the extent of the clipped raster to the extent of the mask layer'),
|
|
defaultValue=True))
|
|
self.addParameter(QgsProcessingParameterBoolean(self.KEEP_RESOLUTION,
|
|
self.tr('Keep resolution of input raster'),
|
|
defaultValue=False))
|
|
self.addParameter(QgsProcessingParameterBoolean(self.SET_RESOLUTION,
|
|
self.tr('Set output file resolution'),
|
|
defaultValue=False))
|
|
self.addParameter(QgsProcessingParameterNumber(self.X_RESOLUTION,
|
|
self.tr('X Resolution to output bands'),
|
|
type=QgsProcessingParameterNumber.Double,
|
|
defaultValue=None,
|
|
optional=True))
|
|
self.addParameter(QgsProcessingParameterNumber(self.Y_RESOLUTION,
|
|
self.tr('Y Resolution to output bands'),
|
|
type=QgsProcessingParameterNumber.Double,
|
|
defaultValue=None,
|
|
optional=True))
|
|
|
|
multithreading_param = QgsProcessingParameterBoolean(self.MULTITHREADING,
|
|
self.tr('Use multithreaded warping implementation'),
|
|
defaultValue=False)
|
|
multithreading_param.setFlags(multithreading_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
|
|
self.addParameter(multithreading_param)
|
|
|
|
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)
|
|
|
|
extra_param = QgsProcessingParameterString(self.EXTRA,
|
|
self.tr('Additional command-line parameters'),
|
|
defaultValue=None,
|
|
optional=True)
|
|
extra_param.setFlags(extra_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
|
|
self.addParameter(extra_param)
|
|
|
|
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
|
|
self.tr('Clipped (mask)')))
|
|
|
|
def name(self):
|
|
return 'cliprasterbymasklayer'
|
|
|
|
def displayName(self):
|
|
return self.tr('Clip raster by mask layer')
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'raster-clip.png'))
|
|
|
|
def group(self):
|
|
return self.tr('Raster extraction')
|
|
|
|
def groupId(self):
|
|
return 'rasterextraction'
|
|
|
|
def commandName(self):
|
|
return 'gdalwarp'
|
|
|
|
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))
|
|
|
|
maskLayer, maskLayerName = self.getOgrCompatibleSource(self.MASK, parameters, context, feedback, executing)
|
|
|
|
sourceCrs = self.parameterAsCrs(parameters, self.SOURCE_CRS, context)
|
|
targetCrs = self.parameterAsCrs(parameters, self.TARGET_CRS, context)
|
|
|
|
if self.NODATA in parameters and parameters[self.NODATA] is not None:
|
|
nodata = self.parameterAsDouble(parameters, self.NODATA, context)
|
|
else:
|
|
nodata = None
|
|
options = self.parameterAsString(parameters, self.OPTIONS, context)
|
|
out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
|
|
self.setOutputValue(self.OUTPUT, out)
|
|
|
|
arguments = []
|
|
|
|
if sourceCrs.isValid():
|
|
arguments.append('-s_srs')
|
|
arguments.append(GdalUtils.gdal_crs_string(sourceCrs))
|
|
|
|
if targetCrs.isValid():
|
|
arguments.append('-t_srs')
|
|
arguments.append(GdalUtils.gdal_crs_string(targetCrs))
|
|
|
|
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]))
|
|
|
|
if self.parameterAsBoolean(parameters, self.KEEP_RESOLUTION, context):
|
|
arguments.append('-tr')
|
|
arguments.append(str(inLayer.rasterUnitsPerPixelX()))
|
|
arguments.append(str(-inLayer.rasterUnitsPerPixelY()))
|
|
arguments.append('-tap')
|
|
|
|
if self.parameterAsBoolean(parameters, self.SET_RESOLUTION, context):
|
|
arguments.append('-tr')
|
|
if self.X_RESOLUTION in parameters and parameters[self.X_RESOLUTION] is not None:
|
|
xres = self.parameterAsDouble(parameters, self.X_RESOLUTION, context)
|
|
arguments.append('{}'.format(xres))
|
|
else:
|
|
arguments.append(str(inLayer.rasterUnitsPerPixelX()))
|
|
if self.Y_RESOLUTION in parameters and parameters[self.Y_RESOLUTION] is not None:
|
|
yres = self.parameterAsDouble(parameters, self.Y_RESOLUTION, context)
|
|
arguments.append('{}'.format(yres))
|
|
else:
|
|
arguments.append(str(-inLayer.rasterUnitsPerPixelY()))
|
|
arguments.append('-tap')
|
|
|
|
arguments.append('-cutline')
|
|
arguments.append(maskLayer)
|
|
arguments.append('-cl')
|
|
arguments.append(maskLayerName)
|
|
|
|
if self.parameterAsBoolean(parameters, self.CROP_TO_CUTLINE, context):
|
|
arguments.append('-crop_to_cutline')
|
|
|
|
if self.parameterAsBoolean(parameters, self.ALPHA_BAND, context):
|
|
arguments.append('-dstalpha')
|
|
|
|
if nodata is not None:
|
|
arguments.append('-dstnodata {}'.format(nodata))
|
|
|
|
if self.parameterAsBoolean(parameters, self.MULTITHREADING, context):
|
|
arguments.append('-multi')
|
|
|
|
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(inLayer.source())
|
|
arguments.append(out)
|
|
|
|
return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
|