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doClipper.py
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doClipper.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
doClipper.py
---------------------
Date : June 2010
Copyright : (C) 2010 by Giuseppe Sucameli
Email : brush dot tyler 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__ = 'Giuseppe Sucameli'
__date__ = 'June 2010'
__copyright__ = '(C) 2010, Giuseppe Sucameli'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from PyQt4.QtCore import SIGNAL
from PyQt4.QtGui import QWidget
from qgis.core import QGis
from ui_widgetClipper import Ui_GdalToolsWidget as Ui_Widget
from widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
import GdalTools_utils as Utils
class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
def __init__(self, iface):
QWidget.__init__(self)
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.setupUi(self)
BasePluginWidget.__init__(self, self.iface, "gdal_translate")
self.outSelector.setType(self.outSelector.FILE)
self.extentSelector.setCanvas(self.canvas)
self.outputFormat = Utils.fillRasterOutputFormat()
# set the default QDoubleSpinBoxes
self.xRes.setValue(12.5)
self.yRes.setValue(12.5)
self.setParamsStatus([
(self.inSelector, SIGNAL("filenameChanged()")),
(self.outSelector, SIGNAL("filenameChanged()")),
(self.noDataSpin, SIGNAL("valueChanged(int)"), self.noDataCheck, 1700),
(self.maskSelector, SIGNAL("filenameChanged()"), self.maskModeRadio, 1600),
(self.alphaBandCheck, SIGNAL("stateChanged(int)")),
(self.cropToCutlineCheck, SIGNAL("stateChanged(int)")),
([self.xRes, self.yRes], SIGNAL("valueChanged(double)"), self.setResolutionRadio),
(self.extentSelector, [SIGNAL("selectionStarted()"), SIGNAL("newExtentDefined()")], self.extentModeRadio),
(self.modeStackedWidget, SIGNAL("currentIndexChanged(int)"))
])
self.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFileEdit)
self.connect(self.outSelector, SIGNAL("selectClicked()"), self.fillOutputFileEdit)
self.connect(self.maskSelector, SIGNAL("selectClicked()"), self.fillMaskFileEdit)
self.connect(self.extentSelector, SIGNAL("newExtentDefined()"), self.extentChanged)
self.connect(self.extentSelector, SIGNAL("selectionStarted()"), self.checkRun)
self.connect(self.extentModeRadio, SIGNAL("toggled(bool)"), self.switchClippingMode)
self.connect(self.keepResolutionRadio, SIGNAL("toggled(bool)"), self.switchResolutionMode)
def show_(self):
self.switchClippingMode()
self.switchResolutionMode()
BasePluginWidget.show_(self)
def onClosing(self):
self.extentSelector.stop()
BasePluginWidget.onClosing(self)
def switchClippingMode(self):
if self.extentModeRadio.isChecked():
index = 0
self.extentSelector.start()
else:
self.extentSelector.stop()
index = 1
self.modeStackedWidget.setCurrentIndex(index)
self.checkRun()
def switchResolutionMode(self):
if self.keepResolutionRadio.isChecked():
self.resolutionWidget.hide()
else:
self.resolutionWidget.show()
def checkRun(self):
if self.extentModeRadio.isChecked():
enabler = self.extentSelector.isCoordsValid()
else:
enabler = not self.maskSelector.filename() == ''
self.base.enableRun(enabler)
def extentChanged(self):
self.activateWindow()
self.raise_()
self.checkRun()
def onLayersChanged(self):
self.inSelector.setLayers(Utils.LayerRegistry.instance().getRasterLayers())
self.maskSelector.setLayers(filter(lambda x: x.geometryType() == QGis.Polygon, Utils.LayerRegistry.instance().getVectorLayers()))
self.checkRun()
def fillInputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
inputFile = Utils.FileDialog.getOpenFileName(self, self.tr("Select the input file for Polygonize"), Utils.FileFilter.allRastersFilter(), lastUsedFilter)
if inputFile == '':
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.inSelector.setFilename(inputFile)
def fillOutputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
outputFile = Utils.FileDialog.getSaveFileName(self, self.tr("Select the raster file to save the results to"), Utils.FileFilter.saveRastersFilter(), lastUsedFilter)
if outputFile == '':
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.outputFormat = Utils.fillRasterOutputFormat(lastUsedFilter, outputFile)
self.outSelector.setFilename(outputFile)
def fillMaskFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
maskFile = Utils.FileDialog.getOpenFileName(self, self.tr("Select the mask file"), Utils.FileFilter.allVectorsFilter(), lastUsedFilter)
if maskFile == '':
return
Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
self.maskSelector.setFilename(maskFile)
self.checkRun()
def getArguments(self):
if not self.extentModeRadio.isChecked():
return self.getArgsModeMask()
return self.getArgsModeExtent()
def getArgsModeExtent(self):
self.base.setPluginCommand("gdal_translate")
inputFn = self.getInputFileName()
arguments = []
if self.noDataCheck.isChecked():
arguments.append("-a_nodata")
arguments.append(unicode(self.noDataSpin.value()))
if self.extentModeRadio.isChecked() and self.extentSelector.isCoordsValid():
rect = self.extentSelector.getExtent()
if rect is not None and not inputFn == '':
arguments.append("-projwin")
arguments.append(unicode(rect.xMinimum()))
arguments.append(unicode(rect.yMaximum()))
arguments.append(unicode(rect.xMaximum()))
arguments.append(unicode(rect.yMinimum()))
outputFn = self.getOutputFileName()
if not outputFn == '':
arguments.append("-of")
arguments.append(self.outputFormat)
arguments.append(inputFn)
arguments.append(outputFn)
return arguments
def getArgsModeMask(self):
self.base.setPluginCommand("gdalwarp")
inputFn = self.getInputFileName()
arguments = []
if self.noDataCheck.isChecked():
arguments.append("-dstnodata")
arguments.append(unicode(self.noDataSpin.value()))
if self.maskModeRadio.isChecked():
mask = self.maskSelector.filename()
if not mask == '' and not inputFn == '':
arguments.append("-q")
arguments.append("-cutline")
arguments.append(mask)
if Utils.GdalConfig.versionNum() >= 1800:
if self.cropToCutlineCheck.isChecked():
arguments.append("-crop_to_cutline")
if self.alphaBandCheck.isChecked():
arguments.append("-dstalpha")
if self.keepResolutionRadio.isChecked():
resolution = Utils.getRasterResolution(inputFn)
if resolution is not None:
arguments.append("-tr")
arguments.append(resolution[0])
arguments.append(resolution[1])
else:
arguments.append("-tr")
arguments.append(unicode(self.xRes.value()))
arguments.append(unicode(self.yRes.value()))
outputFn = self.getOutputFileName()
if not outputFn == '':
arguments.append("-of")
arguments.append(self.outputFormat)
arguments.append(inputFn)
arguments.append(outputFn)
return arguments
def getOutputFileName(self):
return self.outSelector.filename()
def getInputFileName(self):
return self.inSelector.filename()
def addLayerIntoCanvas(self, fileInfo):
self.iface.addRasterLayer(fileInfo.filePath())