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python/plugins/fTools/tools/frmJoinAttributes.ui python/plugins/fTools/tools/doReProject.py python/plugins/fTools/tools/frmReProject.ui python/plugins/fTools/ftools_help.xsl python/plugins/fTools/doAbout.py python/plugins/fTools/frmAbout.ui python/plugins/fTools/__init__.py python/plugins/fTools/CMakeLists.txt python/plugins/fTools/fTools.py python/plugins/fTools/ftools_help.xml git-svn-id: http://svn.osgeo.org/qgis/trunk@15384 c8812cc2-4d05-0410-92ff-de0c093fc19c
85 lines
3.3 KiB
Python
Executable File
85 lines
3.3 KiB
Python
Executable File
# -*- coding: utf-8 -*-
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#-----------------------------------------------------------
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#
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# fTools
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# Copyright (C) 2008-2011 Carson Farmer
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# EMAIL: carson.farmer (at) gmail.com
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# WEB : http://www.ftools.ca/fTools.html
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#
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# A collection of data management and analysis tools for vector data
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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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# 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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# 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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# 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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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from qgis.core import *
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import ftools_utils
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from ui_frmRandom import Ui_Dialog
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import random
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class Dialog(QDialog, Ui_Dialog):
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def __init__(self, iface):
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QDialog.__init__(self)
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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.changed)
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self.setWindowTitle(self.tr("Random selection"))
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# populate layer list
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self.progressBar.setValue(0)
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mapCanvas = self.iface.mapCanvas()
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self.buttonOk = self.buttonBox_2.button( QDialogButtonBox.Ok )
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layers = ftools_utils.getLayerNames([QGis.Point, QGis.Line, QGis.Polygon])
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self.inShape.addItems(layers)
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def changed(self, inputLayer):
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changedLayer = ftools_utils.getVectorLayerByName(inputLayer)
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changedProvider = changedLayer.dataProvider()
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upperVal = changedProvider.featureCount()
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self.spnNumber.setMaximum(upperVal)
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def accept(self):
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self.buttonOk.setEnabled( False )
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if self.inShape.currentText() == "":
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QMessageBox.information(self, self.tr("Random Selection Tool"), self.tr("No input shapefile specified"))
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else:
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self.progressBar.setValue(10)
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inName = self.inShape.currentText()
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self.progressBar.setValue(20)
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layer = ftools_utils.getVectorLayerByName(inName)
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self.progressBar.setValue(30)
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if self.rdoNumber.isChecked():
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value = self.spnNumber.value()
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self.progressBar.setValue(60)
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else:
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value = self.spnPercent.value()
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self.progressBar.setValue(50)
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value = int(round((value / 100.0000), 4) * layer.featureCount())
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self.progressBar.setValue(60)
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selran = random.sample(xrange(0, layer.featureCount()), value)
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self.progressBar.setValue(70)
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self.progressBar.setValue(80)
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self.progressBar.setValue(90)
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self.progressBar.setValue(100)
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layer.setSelectedFeatures(selran)
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self.progressBar.setValue(0)
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self.buttonOk.setEnabled( True )
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