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214 lines
9.8 KiB
Python
214 lines
9.8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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doGrid.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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from builtins import str
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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 qgis.PyQt.QtCore import QFileInfo, QTextCodec
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from qgis.PyQt.QtWidgets import QWidget, QErrorMessage
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from .ui_widgetGrid import Ui_GdalToolsWidget as Ui_Widget
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from .widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
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from . 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.canvas = self.iface.mapCanvas()
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self.algorithm = ('invdist', 'average', 'nearest', 'datametrics')
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self.datametrics = ('minimum', 'maximum', 'range')
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self.setupUi(self)
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BasePluginWidget.__init__(self, self.iface, "gdal_grid")
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self.outSelector.setType(self.outSelector.FILE)
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self.extentSelector.setCanvas(self.canvas)
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#self.extentSelector.stop()
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# set the default QSpinBoxes and QProgressBar value
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self.widthSpin.setValue(3000)
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self.heightSpin.setValue(3000)
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self.invdistPowerSpin.setValue(2.0)
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self.outputFormat = Utils.fillRasterOutputFormat()
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self.lastEncoding = Utils.getLastUsedEncoding()
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self.setParamsStatus([
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(self.inSelector, "filenameChanged"),
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(self.outSelector, "filenameChanged"),
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(self.zfieldCombo, "currentIndexChanged", self.zfieldCheck),
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(self.algorithmCombo, "currentIndexChanged", self.algorithmCheck),
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(self.stackedWidget, None, self.algorithmCheck),
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([self.invdistPowerSpin, self.invdistSmothingSpin, self.invdistRadius1Spin, self.invdistRadius2Spin, self.invdistAngleSpin, self.invdistNoDataSpin], "valueChanged"),
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([self.invdistMaxPointsSpin, self.invdistMinPointsSpin], "valueChanged"),
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([self.averageRadius1Spin, self.averageRadius2Spin, self.averageAngleSpin, self.averageNoDataSpin], "valueChanged"),
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(self.averageMinPointsSpin, "valueChanged"),
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([self.nearestRadius1Spin, self.nearestRadius2Spin, self.nearestAngleSpin, self.nearestNoDataSpin], "valueChanged"),
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(self.datametricsCombo, "currentIndexChanged"),
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([self.datametricsRadius1Spin, self.datametricsRadius2Spin, self.datametricsAngleSpin, self.datametricsNoDataSpin], "valueChanged"),
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(self.datametricsMinPointsSpin, "valueChanged"),
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(self.extentSelector, ["selectionStarted", "newExtentDefined"], self.extentGroup),
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([self.widthSpin, self.heightSpin], "valueChanged", self.resizeGroupBox)
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])
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self.inSelector.selectClicked.connect(self.fillInputFileEdit)
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self.outSelector.selectClicked.connect(self.fillOutputFileEdit)
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self.inSelector.layerChanged.connect(self.fillFieldsCombo)
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self.extentGroup.toggled.connect(self.onExtentCheckedChanged)
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def onClosing(self):
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self.extentSelector.stop()
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BasePluginWidget.onClosing(self)
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def onExtentCheckedChanged(self, enabled):
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self.extentSelector.start() if enabled else self.extentSelector.stop()
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def onLayersChanged(self):
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self.inSelector.setLayers(Utils.LayerRegistry.instance().getVectorLayers())
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def fillFieldsCombo(self):
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if self.inSelector.layer() is None:
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return
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self.lastEncoding = self.inSelector.layer().dataProvider().encoding()
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self.loadFields(self.getInputFileName())
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def fillInputFileEdit(self):
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lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
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inputFile, encoding = Utils.FileDialog.getOpenFileName(self, self.tr("Select the input file for Grid"), Utils.FileFilter.allVectorsFilter(), lastUsedFilter, True)
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if not inputFile:
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return
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Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
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self.inSelector.setFilename(inputFile)
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self.lastEncoding = encoding
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self.loadFields(inputFile)
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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 the raster file to save the results to"), 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 getArguments(self):
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arguments = []
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if self.zfieldCheck.isChecked() and self.zfieldCombo.currentIndex() >= 0:
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arguments.append("-zfield")
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arguments.append(self.zfieldCombo.currentText())
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inputFn = self.getInputFileName()
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if inputFn:
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arguments.append("-l")
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arguments.append(QFileInfo(inputFn).baseName())
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if self.extentGroup.isChecked():
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rect = self.extentSelector.getExtent()
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if rect is not None:
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arguments.append("-txe")
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arguments.append(str(rect.xMinimum()))
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arguments.append(str(rect.xMaximum()))
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arguments.append("-tye")
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arguments.append(str(rect.yMaximum()))
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arguments.append(str(rect.yMinimum()))
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if self.algorithmCheck.isChecked() and self.algorithmCombo.currentIndex() >= 0:
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arguments.append("-a")
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arguments.append(self.algorithmArguments(self.algorithmCombo.currentIndex()))
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if self.resizeGroupBox.isChecked():
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arguments.append("-outsize")
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arguments.append(str(self.widthSpin.value()))
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arguments.append(str(self.heightSpin.value()))
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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(inputFn)
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arguments.append(outputFn)
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return arguments
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def getInputFileName(self):
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return self.inSelector.filename()
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def getOutputFileName(self):
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return self.outSelector.filename()
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def addLayerIntoCanvas(self, fileInfo):
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self.iface.addRasterLayer(fileInfo.filePath())
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def algorithmArguments(self, index):
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algorithm = self.algorithm[index]
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arguments = []
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if algorithm == "invdist":
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arguments.append(algorithm)
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arguments.append("power=" + str(self.invdistPowerSpin.value()))
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arguments.append("smothing=" + str(self.invdistSmothingSpin.value()))
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arguments.append("radius1=" + str(self.invdistRadius1Spin.value()))
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arguments.append("radius2=" + str(self.invdistRadius2Spin.value()))
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arguments.append("angle=" + str(self.invdistAngleSpin.value()))
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arguments.append("max_points=" + str(self.invdistMaxPointsSpin.value()))
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arguments.append("min_points=" + str(self.invdistMinPointsSpin.value()))
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arguments.append("nodata=" + str(self.invdistNoDataSpin.value()))
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elif algorithm == "average":
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arguments.append(algorithm)
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arguments.append("radius1=" + str(self.averageRadius1Spin.value()))
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arguments.append("radius2=" + str(self.averageRadius2Spin.value()))
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arguments.append("angle=" + str(self.averageAngleSpin.value()))
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arguments.append("min_points=" + str(self.averageMinPointsSpin.value()))
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arguments.append("nodata=" + str(self.averageNoDataSpin.value()))
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elif algorithm == "nearest":
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arguments.append(algorithm)
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arguments.append("radius1=" + str(self.nearestRadius1Spin.value()))
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arguments.append("radius2=" + str(self.nearestRadius2Spin.value()))
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arguments.append("angle=" + str(self.nearestAngleSpin.value()))
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arguments.append("nodata=" + str(self.nearestNoDataSpin.value()))
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else:
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arguments.append(self.datametrics[self.datametricsCombo.currentIndex()])
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arguments.append("radius1=" + str(self.datametricsRadius1Spin.value()))
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arguments.append("radius2=" + str(self.datametricsRadius2Spin.value()))
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arguments.append("angle=" + str(self.datametricsAngleSpin.value()))
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arguments.append("min_points=" + str(self.datametricsMinPointsSpin.value()))
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arguments.append("nodata=" + str(self.datametricsNoDataSpin.value()))
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return ':'.join(arguments)
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def loadFields(self, vectorFile=''):
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self.zfieldCombo.clear()
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if not vectorFile:
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return
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try:
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(fields, names) = Utils.getVectorFields(vectorFile)
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except Utils.UnsupportedOGRFormat as e:
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QErrorMessage(self).showMessage(e.args[0])
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self.inSelector.setLayer(None)
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return
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ncodec = QTextCodec.codecForName(self.lastEncoding)
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for name in names:
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self.zfieldCombo.addItem(ncodec.toUnicode(name))
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