def __init__(self):
QtGui.QDialog.__init__(self)
# Set up the user interface from Designer.
self.ui = Ui_PointsToPaths()
self.ui.setupUi(self)
QtCore.QObject.connect(self.ui.btnBrowse, QtCore.SIGNAL("clicked()"),
self.outFile)
QtCore.QObject.connect(self.ui.inShape,
QtCore.SIGNAL("currentIndexChanged(QString)"),
self.checkLayer)
QtCore.QObject.connect(self.ui.inShape,
QtCore.SIGNAL("currentIndexChanged(QString)"),
self.update)
self.manageGui()
self.show()
def __init__(self):
QtGui.QDialog.__init__(self)
# Set up the user interface from Designer.
self.ui = Ui_PointsToPaths()
self.ui.setupUi(self)
QtCore.QObject.connect( self.ui.btnBrowse, QtCore.SIGNAL( "clicked()" ), self.outFile )
QtCore.QObject.connect( self.ui.inShape, QtCore.SIGNAL( "currentIndexChanged(QString)" ), self.checkLayer )
QtCore.QObject.connect( self.ui.inShape, QtCore.SIGNAL( "currentIndexChanged(QString)" ), self.update )
self.manageGui()
self.show()
class PointsToPathsDialog(QtGui.QDialog, Ui_PointsToPaths):
def __init__(self):
QtGui.QDialog.__init__(self)
# Set up the user interface from Designer.
self.ui = Ui_PointsToPaths()
self.ui.setupUi(self)
QtCore.QObject.connect(self.ui.btnBrowse, QtCore.SIGNAL("clicked()"),
self.outFile)
QtCore.QObject.connect(self.ui.inShape,
QtCore.SIGNAL("currentIndexChanged(QString)"),
self.checkLayer)
QtCore.QObject.connect(self.ui.inShape,
QtCore.SIGNAL("currentIndexChanged(QString)"),
self.update)
self.manageGui()
self.show()
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def checkLayer(self):
inputLayer = unicode(self.ui.inShape.currentText())
if inputLayer != "":
changedLayer = getVectorLayerByName(inputLayer)
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def update(self):
self.ui.orderField.clear()
self.ui.attrField.clear()
inputLayer = unicode(self.ui.inShape.currentText())
if inputLayer != "":
changedLayer = getVectorLayerByName(inputLayer)
changedField = changedLayer.dataProvider().fields()
for field in changedField:
name = field.name()
self.ui.orderField.addItem(name)
self.ui.attrField.addItem(name)
# Return list point layer names in QgsMapLayerRegistry
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def manageGui(self):
myList = []
self.ui.inShape.clear()
myList = getLayerNames([QGis.Point])
self.ui.inShape.addItems(myList)
return
# portions adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def accept(self):
QtGui
if self.ui.inShape.currentText() == "":
QtGui.QMessageBox.warning(self, "PointsToPaths",
self.tr("Please specify an input layer"))
return
elif self.ui.attrField.currentText() == "":
QtGui.QMessageBox.warning(
self, "PointsToPaths",
self.tr("Please define specific input field"))
elif self.ui.orderField.currentText() == "":
QtGui.QMessageBox.warning(
self, "PointsToPaths",
self.tr("Please define specific input field"))
elif self.getOutFilePath() == "":
QtGui.QMessageBox.warning(
self, "PointsToPaths",
self.tr("Please specify output shapefile"))
else:
inputLayer = unicode(self.ui.inShape.currentText())
layer = getVectorLayerByName(inputLayer)
provider = layer.dataProvider()
processor = ProcessFeatures(layer, self.getOutFilePath(),
self.ui.orderField.currentText(),
self.getTimeFormat(),
self.ui.attrField.currentText())
points = processor.generatePointDict()
processor.writeShapefile(points, layer.crs(), self.getGapPeriod(),
self.getLinesPerVertex())
message = unicode(self.tr('Created output shapefile:'))
message = '\n'.join([message, unicode(self.getOutFilePath())])
message = '\n'.join([
message,
unicode(
self.tr('Would you like to add the new layer to the TOC?'))
])
addToTOC = QtGui.QMessageBox.question(self, "PointsToPaths",
message,
QtGui.QMessageBox.Yes,
QtGui.QMessageBox.No,
QtGui.QMessageBox.NoButton)
if addToTOC == QtGui.QMessageBox.Yes:
addShapeToCanvas(unicode(self.getOutFilePath()))
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def outFile(self):
outFilePath = saveDialog(self)
if not outFilePath:
return
self.setOutFilePath(outFilePath)
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def getOutFilePath(self):
return self.ui.outShape.text()
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def setOutFilePath(self, outFilePath):
self.ui.outShape.setText(outFilePath)
def getTimeFormat(self):
return self.ui.dateFormat.text()
def getGapPeriod(self):
gap_string = self.ui.gapPeriod.text()
if gap_string != '':
try:
gap = float(gap_string)
except:
raise ValueError, 'Gap period not a numeric value'
else:
gap = None
return gap
def getLinesPerVertex(self):
is_checked = self.ui.linePerVertex.isChecked()
return is_checked
class PointsToPathsDialog(QtGui.QDialog,Ui_PointsToPaths):
def __init__(self):
QtGui.QDialog.__init__(self)
# Set up the user interface from Designer.
self.ui = Ui_PointsToPaths()
self.ui.setupUi(self)
QtCore.QObject.connect( self.ui.btnBrowse, QtCore.SIGNAL( "clicked()" ), self.outFile )
QtCore.QObject.connect( self.ui.inShape, QtCore.SIGNAL( "currentIndexChanged(QString)" ), self.checkLayer )
QtCore.QObject.connect( self.ui.inShape, QtCore.SIGNAL( "currentIndexChanged(QString)" ), self.update )
self.manageGui()
self.show()
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def checkLayer(self):
inputLayer = unicode( self.ui.inShape.currentText() )
if inputLayer != "":
changedLayer = getVectorLayerByName( inputLayer )
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def update(self):
self.ui.orderField.clear()
self.ui.attrField.clear()
inputLayer = unicode( self.ui.inShape.currentText() )
if inputLayer != "":
changedLayer = getVectorLayerByName( inputLayer )
changedField = changedLayer.dataProvider().fields()
for field in changedField:
name = field.name()
self.ui.orderField.addItem(name)
self.ui.attrField.addItem(name)
# Return list point layer names in QgsMapLayerRegistry
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def manageGui(self):
myList = []
self.ui.inShape.clear()
myList = getLayerNames( [ QGis.Point ] )
self.ui.inShape.addItems( myList )
return
# portions adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def accept(self):
QtGui
if self.ui.inShape.currentText() == "":
QtGui.QMessageBox.warning( self, "PointsToPaths", self.tr( "Please specify an input layer" ) )
return
elif self.ui.attrField.currentText() == "":
QtGui.QMessageBox.warning( self, "PointsToPaths", self.tr( "Please define specific input field" ) )
elif self.ui.orderField.currentText() == "":
QtGui.QMessageBox.warning( self, "PointsToPaths", self.tr( "Please define specific input field" ) )
elif self.getOutFilePath() == "":
QtGui.QMessageBox.warning( self, "PointsToPaths", self.tr( "Please specify output shapefile" ) )
else:
inputLayer = unicode( self.ui.inShape.currentText() )
layer = getVectorLayerByName( inputLayer )
provider = layer.dataProvider()
processor = ProcessFeatures(layer, self.getOutFilePath(), self.ui.orderField.currentText(), self.getTimeFormat(), self.ui.attrField.currentText())
points = processor.generatePointDict()
processor.writeShapefile(points, layer.crs(), self.getGapPeriod())
message = unicode(self.tr('Created output shapefile:'))
message = '\n'.join([message, unicode(self.getOutFilePath())])
message = '\n'.join([message,unicode(self.tr('Would you like to add the new layer to the TOC?'))])
addToTOC = QtGui.QMessageBox.question(self, "PointsToPaths", message,
QtGui.QMessageBox.Yes, QtGui.QMessageBox.No, QtGui.QMessageBox.NoButton)
if addToTOC == QtGui.QMessageBox.Yes:
addShapeToCanvas(unicode(self.getOutFilePath()))
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def outFile(self):
outFilePath = saveDialog(self)
if not outFilePath:
return
self.setOutFilePath(outFilePath)
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def getOutFilePath(self):
return self.ui.outShape.text()
# adopted from 'points2one', Copyright (C) 2010 Pavol Kapusta & Goyo Diaz
def setOutFilePath(self, outFilePath):
self.ui.outShape.setText(outFilePath)
def getTimeFormat(self):
return self.ui.dateFormat.text()
def getGapPeriod(self):
gap_string = self.ui.gapPeriod.text()
if gap_string != '':
try:
gap = float(gap_string)
except:
raise ValueError, 'Gap period not a numeric value'
else:
gap = None
return gap
