mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-31 00:06:02 -04:00
115 lines
4.4 KiB
Python
115 lines
4.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
ClipByExtent.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. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
from builtins import str
|
|
|
|
__author__ = 'Alexander Bruy'
|
|
__date__ = 'September 2013'
|
|
__copyright__ = '(C) 2013, Alexander Bruy'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
|
|
from processing.core.parameters import (ParameterRaster,
|
|
ParameterExtent,
|
|
ParameterString,
|
|
ParameterSelection)
|
|
from processing.core.outputs import OutputRaster
|
|
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class ClipByExtent(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
OUTPUT = 'OUTPUT'
|
|
NO_DATA = 'NO_DATA'
|
|
PROJWIN = 'PROJWIN'
|
|
OPTIONS = 'OPTIONS'
|
|
RTYPE = 'RTYPE'
|
|
TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64']
|
|
|
|
def getIcon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'raster-clip.png'))
|
|
|
|
def defineCharacteristics(self):
|
|
self.name, self.i18n_name = self.trAlgorithm('Clip raster by extent')
|
|
self.group, self.i18n_group = self.trAlgorithm('[GDAL] Extraction')
|
|
|
|
self.addParameter(ParameterRaster(self.INPUT, self.tr('Input layer')))
|
|
self.addParameter(ParameterString(self.NO_DATA,
|
|
self.tr("Nodata value, leave blank to take the nodata value from input"),
|
|
'',
|
|
optional=True))
|
|
self.addParameter(ParameterExtent(self.PROJWIN, self.tr('Clipping extent')))
|
|
self.addParameter(ParameterString(self.OPTIONS,
|
|
self.tr('Additional creation options'),
|
|
optional=True,
|
|
metadata={'widget_wrapper': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}))
|
|
self.addParameter(ParameterSelection(self.RTYPE,
|
|
self.tr('Output raster type'),
|
|
self.TYPE, 5))
|
|
|
|
self.addOutput(OutputRaster(self.OUTPUT, self.tr('Clipped (extent)')))
|
|
|
|
def getConsoleCommands(self):
|
|
out = self.getOutputValue(self.OUTPUT)
|
|
noData = self.getParameterValue(self.NO_DATA)
|
|
opts = self.getParameterValue(self.OPTIONS)
|
|
projwin = self.getParameterValue(self.PROJWIN)
|
|
|
|
if noData is not None:
|
|
noData = str(noData)
|
|
|
|
arguments = []
|
|
arguments.append('-of')
|
|
arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
|
|
arguments.append('-ot')
|
|
arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
|
|
if noData and len(noData) > 0:
|
|
arguments.append('-a_nodata')
|
|
arguments.append(noData)
|
|
|
|
regionCoords = projwin.split(',')
|
|
arguments.append('-projwin')
|
|
arguments.append(regionCoords[0])
|
|
arguments.append(regionCoords[3])
|
|
arguments.append(regionCoords[1])
|
|
arguments.append(regionCoords[2])
|
|
|
|
if opts:
|
|
arguments.append('-co')
|
|
arguments.append(opts)
|
|
|
|
arguments.append(self.getParameterValue(self.INPUT))
|
|
arguments.append(out)
|
|
|
|
return ['gdal_translate', GdalUtils.escapeAndJoin(arguments)]
|
|
|
|
def commandName(self):
|
|
return "gdal_translate"
|