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#-----------------------------------------------------------
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#
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#
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# Random selection within subsets
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#
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# A QGIS plugin for randomly selecting features from
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# A QGIS plugin for randomly selecting features from
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# within multiple user defined subsets based on an input field.
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#
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# Copyright (C) 2008 Carson Farmer
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# WEB : www.geog.uvic.ca/spar/carson
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#
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#-----------------------------------------------------------
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#
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#
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# licensed under the terms of GNU GPL 2
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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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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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#
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#--------------------------------------------------------------------
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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self.iface = iface
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# Set up the user interface from Designer.
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self.setupUi(self)
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QObject.connect(self.inShape, SIGNAL("currentIndexChanged(QString)"), self.update)
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QObject.connect(self.inShape, SIGNAL("currentIndexChanged(QString)"), self.update)
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self.setWindowTitle(self.tr("Random selection within subsets"))
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# populate layer list
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self.progressBar.setValue(0)
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changedField = self.getFieldList(changedLayer)
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for i in changedField:
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self.inField.addItem(unicode(changedField[i].name()))
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maxFeatures = changedLayer.dataProvider().featureCount()
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self.spnNumber.setMaximum( maxFeatures )
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def accept(self):
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if self.inShape.currentText() == "":
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return myFields
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def getUniqueValues(self, provider, index):
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allAttrs = provider.attributeIndexes()
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allAttrs = provider.attributeIndexes()
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provider.select(allAttrs)
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feat = QgsFeature()
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values = []
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