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203 lines
7.9 KiB
Python
203 lines
7.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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doMerge.py
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---------------------
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Date : June 2010
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Copyright : (C) 2010 by Giuseppe Sucameli
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Email : brush dot tyler at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Giuseppe Sucameli'
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__date__ = 'June 2010'
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__copyright__ = '(C) 2010, Giuseppe Sucameli'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from qgis.core import *
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from qgis.gui import *
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from ui_widgetMerge import Ui_GdalToolsWidget as Ui_Widget
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from widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
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import GdalTools_utils as Utils
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class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
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def __init__(self, iface):
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QWidget.__init__(self)
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self.iface = iface
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self.setupUi(self)
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BasePluginWidget.__init__(self, self.iface, "gdal_merge.py")
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self.inSelector.setType( self.inSelector.FILE )
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self.outSelector.setType( self.outSelector.FILE )
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self.recurseCheck.hide()
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# use this for approx. previous UI
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#self.creationOptionsWidget.setType(QgsRasterFormatSaveOptionsWidget.Table)
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self.outputFormat = Utils.fillRasterOutputFormat()
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self.extent = None
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self.setParamsStatus(
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[
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(self.inSelector, SIGNAL("filenameChanged()")),
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(self.outSelector, SIGNAL("filenameChanged()")),
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(self.noDataSpin, SIGNAL("valueChanged(int)"), self.noDataCheck),
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(self.inputDirCheck, SIGNAL("stateChanged(int)")),
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(self.recurseCheck, SIGNAL("stateChanged(int)"), self.inputDirCheck),
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( self.separateCheck, SIGNAL( "stateChanged( int )" ) ),
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( self.pctCheck, SIGNAL( "stateChanged( int )" ) ),
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( self.intersectCheck, SIGNAL( "stateChanged( int )" ) ),
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(self.creationOptionsWidget, SIGNAL("optionsChanged()")),
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(self.creationOptionsGroupBox, SIGNAL("toggled(bool)"))
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]
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)
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self.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFilesEdit)
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self.connect(self.outSelector, SIGNAL("selectClicked()"), self.fillOutputFileEdit)
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self.connect(self.intersectCheck, SIGNAL("toggled(bool)"), self.refreshExtent)
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self.connect(self.inputDirCheck, SIGNAL("stateChanged( int )"), self.switchToolMode)
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self.connect(self.inSelector, SIGNAL("filenameChanged()"), self.refreshExtent)
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def switchToolMode(self):
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self.recurseCheck.setVisible( self.inputDirCheck.isChecked() )
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self.inSelector.clear()
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if self.inputDirCheck.isChecked():
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self.inFileLabel = self.label.text()
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self.label.setText( QCoreApplication.translate( "GdalTools", "&Input directory" ) )
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QObject.disconnect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFilesEdit)
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QObject.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputDir)
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else:
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self.label.setText( self.inFileLabel )
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QObject.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFilesEdit)
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QObject.disconnect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputDir)
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def fillInputFilesEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
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files = Utils.FileDialog.getOpenFileNames(self, self.tr( "Select the files to Merge" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
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if not files:
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return
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Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
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self.inSelector.setFilename(files)
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def refreshExtent(self):
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files = self.getInputFileNames()
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self.intersectCheck.setEnabled( len(files) > 1 )
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if not self.intersectCheck.isChecked():
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self.someValueChanged()
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return
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if len(files) < 2:
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self.intersectCheck.setChecked( False )
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return
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self.extent = self.getIntersectedExtent( files )
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if self.extent == None:
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QMessageBox.warning( self, self.tr( "Error retrieving the extent" ), self.tr( 'GDAL was unable to retrieve the extent from any file. \nThe "Use intersected extent" option will be unchecked.' ) )
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self.intersectCheck.setChecked( False )
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return
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elif self.extent.isEmpty():
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QMessageBox.warning( self, self.tr( "Empty extent" ), self.tr( 'The computed extent is empty. \nDisable the "Use intersected extent" option to have a nonempty output.' ) )
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self.someValueChanged()
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def fillOutputFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
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outputFile = Utils.FileDialog.getSaveFileName(self, self.tr( "Select where to save the Merge output" ), Utils.FileFilter.saveRastersFilter(), lastUsedFilter )
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if not outputFile:
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return
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Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
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self.outputFormat = Utils.fillRasterOutputFormat( lastUsedFilter, outputFile )
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self.outSelector.setFilename( outputFile )
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def fillInputDir( self ):
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inputDir = Utils.FileDialog.getExistingDirectory( self, self.tr( "Select the input directory with files to Merge" ))
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if not inputDir:
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return
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self.inSelector.setFilename( inputDir )
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def getArguments(self):
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arguments = []
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if self.intersectCheck.isChecked():
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if self.extent != None:
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arguments.append("-ul_lr")
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arguments.append(str( self.extent.xMinimum() ))
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arguments.append(str( self.extent.yMaximum() ))
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arguments.append(str( self.extent.xMaximum() ))
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arguments.append(str( self.extent.yMinimum() ))
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if self.noDataCheck.isChecked():
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arguments.append("-n")
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arguments.append(str(self.noDataSpin.value()))
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if Utils.GdalConfig.versionNum() >= 1900:
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arguments.append("-a_nodata")
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arguments.append(str(self.noDataSpin.value()))
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if self.separateCheck.isChecked():
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arguments.append("-separate")
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if self.pctCheck.isChecked():
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arguments.append("-pct")
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if self.creationOptionsGroupBox.isChecked():
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for opt in self.creationOptionsWidget.options():
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arguments.append("-co")
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arguments.append(opt)
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outputFn = self.getOutputFileName()
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if outputFn:
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arguments.append("-of")
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arguments.append(self.outputFormat)
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arguments.append("-o")
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arguments.append(outputFn)
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arguments.extend(self.getInputFileNames())
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return arguments
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def getOutputFileName(self):
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return self.outSelector.filename()
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def getInputFileName(self):
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if self.inputDirCheck.isChecked():
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return self.inSelector.filename()
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return self.inSelector.filename().split(",")
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def getInputFileNames(self):
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if self.inputDirCheck.isChecked():
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return Utils.getRasterFiles( self.inSelector.filename(), self.recurseCheck.isChecked() )
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return self.inSelector.filename().split(",")
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def addLayerIntoCanvas(self, fileInfo):
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self.iface.addRasterLayer(fileInfo.filePath())
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def getIntersectedExtent(self, files):
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res = None
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for fileName in files:
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if res == None:
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res = Utils.getRasterExtent( self, fileName )
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continue
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rect2 = Utils.getRasterExtent( self, fileName )
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if rect2 == None:
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continue
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res = res.intersect( rect2 )
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if res.isEmpty():
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break
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return res
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