def showDialog(self):
flags = Qt.WindowTitleHint | Qt.WindowSystemMenuHint | Qt.WindowMaximizeButtonHint # QgisGui.ModalDialogFlags
self.gui = DtMoveSideByArea_Dialog(self.iface.mainWindow(), flags)
self.gui.initGui()
self.gui.show()
QObject.connect(self.gui, SIGNAL("unsetTool()"), self.unsetTool)
QObject.connect(self.gui, SIGNAL("moveSide()"), self.moveSide)
def showDialog(self):
flags = QtCore.Qt.WindowTitleHint | QtCore.Qt.WindowSystemMenuHint | QtCore.Qt.WindowMaximizeButtonHint # QgisGui.ModalDialogFlags
self.gui = DtMoveSideByArea_Dialog(self.iface.mainWindow(), flags)
self.gui.initGui()
self.gui.show()
self.gui.unsetTool.connect(self.unsetTool)
self.gui.moveSide.connect(self.moveSide)
def showDialog(self):
flags = Qt.WindowTitleHint | Qt.WindowSystemMenuHint | Qt.WindowMaximizeButtonHint # QgisGui.ModalDialogFlags
self.gui = DtMoveSideByArea_Dialog(self.iface.mainWindow(), flags)
self.gui.initGui()
self.gui.show()
QObject.connect(self.gui, SIGNAL("unsetTool()"), self.unsetTool)
QObject.connect(self.gui, SIGNAL("moveSide()"), self.moveSide)
def showDialog(self):
flags = QtCore.Qt.WindowTitleHint | QtCore.Qt.WindowSystemMenuHint | QtCore.Qt.WindowMaximizeButtonHint # QgisGui.ModalDialogFlags
self.gui = DtMoveSideByArea_Dialog(self.iface.mainWindow(), flags)
self.gui.initGui()
self.gui.show()
self.gui.unsetTool.connect(self.unsetTool)
self.gui.moveSide.connect(self.moveSide)
class DtMoveSideByArea():
'''Parallel move polygon side in order to achieve a desired polygon area'''
def __init__(self, iface, toolBar):
# Save reference to the QGIS interface
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.gui = None
self.multipolygon_detected = False
# points of the selected segment
# p1 is always the left point
self.p1 = None
self.p2 = None
self.rb1 = QgsRubberBand(self.canvas, False)
self.selected_feature = None
#create action
self.side_mover = QtGui.QAction(QtGui.QIcon(":/ParallelMovePolygonSideByArea.png"),
QtCore.QCoreApplication.translate("digitizingtools", "Parallel move of polygon side to target area"), self.iface.mainWindow())
self.side_mover.triggered.connect(self.run)
self.iface.currentLayerChanged.connect(self.enable)
toolBar.addAction(self.side_mover)
self.enable()
self.tool = DtSelectSegmentTool(self.canvas, self.iface)
def showDialog(self):
flags = Qt.WindowTitleHint | Qt.WindowSystemMenuHint | Qt.WindowMaximizeButtonHint # QgisGui.ModalDialogFlags
self.gui = DtMoveSideByArea_Dialog(self.iface.mainWindow(), flags)
self.gui.initGui()
self.gui.show()
QObject.connect(self.gui, SIGNAL("unsetTool()"), self.unsetTool)
QObject.connect(self.gui, SIGNAL("moveSide()"), self.moveSide)
def enableSegmentTool(self):
self.canvas.setMapTool(self.tool)
#Connect to the DtSelectVertexTool
QObject.connect(self.tool, SIGNAL("segmentFound(PyQt_PyObject)"), self.storeSegmentPoints)
def unsetTool(self):
self.p1 = None
self.p2 = None
self.selected_feature = None
self.canvas.unsetMapTool(self.tool)
def run(self):
'''Function that does all the real work'''
layer = self.iface.activeLayer()
if(layer.dataProvider().geometryType() == 6):
self.multipolygon_detected = True
title = QtCore.QCoreApplication.translate("digitizingtools", "Move polygon side by area")
if layer.selectedFeatureCount() == 0:
QtGui.QMessageBox.information(None, title, QtCore.QCoreApplication.translate("digitizingtools", "Please select one polygon to edit."))
elif layer.selectedFeatureCount() > 1:
QtGui.QMessageBox.information(None, title, QtCore.QCoreApplication.translate("digitizingtools", "Please select only one polygon to edit."))
else:
#One selected feature
self.selected_feature = layer.selectedFeatures()[0]
self.enableSegmentTool()
self.showDialog()
self.gui.writeArea(self.selected_feature.geometry().area())
def storeSegmentPoints(self, result):
if result[0].x() < result[1].x():
self.p1 = result[0]
self.p2 = result[1]
elif result[0].x() == result[1].x():
self.p1 = result[0]
self.p2 = result[1]
else:
self.p1 = result[1]
self.p2 = result[0]
def enable(self):
'''Enables/disables the corresponding button.'''
# Disable the Button by default
self.side_mover.setEnabled(False)
layer = self.iface.activeLayer()
if layer <> None:
#Only for vector layers.
if layer.type() == QgsMapLayer.VectorLayer:
# only for polygon layers
if layer.geometryType() == 2:
# enable if editable
self.side_mover.setEnabled(layer.isEditable())
try:
layer.editingStarted.disconnect(self.enable) # disconnect, will be reconnected
except:
pass
try:
layer.editingStopped.disconnect(self.enable) # when it becomes active layer again
except:
pass
layer.editingStarted.connect(self.enable)
layer.editingStopped.connect(self.enable)
def moveSide(self):
new_a = -1.0
try:
new_a = float(self.gui.targetArea.text())
except:
pass
if (new_a == -1.0):
QMessageBox.information(None, QCoreApplication.translate("digitizingtools", "Cancel"), QCoreApplication.translate("digitizingtools", "Target Area not valid."))
return
if self.p1 == None or self.p2 == None:
QMessageBox.information(None, QCoreApplication.translate("digitizingtools", "Cancel"), QCoreApplication.translate("digitizingtools", "Polygon side not selected."))
else:
touch_p1_p2 = self.selected_feature.geometry().touches(QgsGeometry.fromPolyline([self.p1, self.p2]))
if (not touch_p1_p2):
QMessageBox.information(None, QCoreApplication.translate("digitizingtools", "Cancel"), QCoreApplication.translate("digitizingtools", "Selected segment should be on the selected polygon."))
else:
#Select tool to create new geometry here
if self.gui.method == "fixed":
new_geom = moveFixed(self.selected_feature.geometry(), self.p1, self.p2, new_a, self.multipolygon_detected)
else:
new_geom = moveVariable(self.selected_feature.geometry(), self.p1, self.p2, new_a, self.multipolygon_detected)
#Store new geometry on the memory buffer
fid = self.selected_feature.id()
layer = self.iface.activeLayer()
layer.beginEditCommand(QtCore.QCoreApplication.translate("editcommand", "Move Side By Area"))
layer.changeGeometry(fid,new_geom)
self.canvas.refresh()
layer.endEditCommand()
class DtMoveSideByArea():
'''Parallel move polygon side in order to achieve a desired polygon area'''
def __init__(self, iface, toolBar):
# Save reference to the QGIS interface
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.gui = None
self.multipolygon_detected = False
# points of the selected segment
# p1 is always the left point
self.p1 = None
self.p2 = None
self.rb1 = QgsRubberBand(self.canvas, False)
self.selected_feature = None
#create action
self.side_mover = QtGui.QAction(
QtGui.QIcon(":/ParallelMovePolygonSideByArea.png"),
QtCore.QCoreApplication.translate(
"digitizingtools",
"Parallel move of polygon side to target area"),
self.iface.mainWindow())
self.side_mover.triggered.connect(self.run)
self.iface.currentLayerChanged.connect(self.enable)
toolBar.addAction(self.side_mover)
self.enable()
self.tool = DtSelectSegmentTool(self.canvas)
def showDialog(self):
flags = Qt.WindowTitleHint | Qt.WindowSystemMenuHint | Qt.WindowMaximizeButtonHint # QgisGui.ModalDialogFlags
self.gui = DtMoveSideByArea_Dialog(self.iface.mainWindow(), flags)
self.gui.initGui()
self.gui.show()
QObject.connect(self.gui, SIGNAL("unsetTool()"), self.unsetTool)
QObject.connect(self.gui, SIGNAL("moveSide()"), self.moveSide)
def enableSegmentTool(self):
self.canvas.setMapTool(self.tool)
#Connect to the DtSelectVertexTool
QObject.connect(self.tool, SIGNAL("segmentFound(PyQt_PyObject)"),
self.storeSegmentPoints)
def unsetTool(self):
self.p1 = None
self.p2 = None
self.selected_feature = None
self.canvas.unsetMapTool(self.tool)
def run(self):
'''Function that does all the real work'''
layer = self.iface.activeLayer()
if (layer.dataProvider().geometryType() == 6):
self.multipolygon_detected = True
title = QtCore.QCoreApplication.translate("digitizingtools",
"Move polygon side by area")
if layer.selectedFeatureCount() == 0:
QtGui.QMessageBox.information(
None, title,
QtCore.QCoreApplication.translate(
"digitizingtools", "Please select one polygon to edit."))
elif layer.selectedFeatureCount() > 1:
QtGui.QMessageBox.information(
None, title,
QtCore.QCoreApplication.translate(
"digitizingtools",
"Please select only one polygon to edit."))
else:
#One selected feature
self.selected_feature = layer.selectedFeatures()[0]
self.enableSegmentTool()
self.showDialog()
self.gui.writeArea(self.selected_feature.geometry().area())
def storeSegmentPoints(self, result):
if result[0].x() < result[1].x():
self.p1 = result[0]
self.p2 = result[1]
elif result[0].x() == result[1].x():
self.p1 = result[0]
self.p2 = result[1]
else:
self.p1 = result[1]
self.p2 = result[0]
def enable(self):
'''Enables/disables the corresponding button.'''
# Disable the Button by default
self.side_mover.setEnabled(False)
layer = self.iface.activeLayer()
if layer <> None:
#Only for vector layers.
if layer.type() == QgsMapLayer.VectorLayer:
# only for polygon layers
if layer.geometryType() == 2:
# enable if editable
self.side_mover.setEnabled(layer.isEditable())
try:
layer.editingStarted.disconnect(
self.enable) # disconnect, will be reconnected
except:
pass
try:
layer.editingStopped.disconnect(
self.enable) # when it becomes active layer again
except:
pass
layer.editingStarted.connect(self.enable)
layer.editingStopped.connect(self.enable)
def moveSide(self):
new_a = -1.0
try:
new_a = float(self.gui.targetArea.text())
except:
pass
if (new_a == -1.0):
QMessageBox.information(
None, QCoreApplication.translate("digitizingtools", "Cancel"),
QCoreApplication.translate("digitizingtools",
"Target Area not valid."))
return
if self.p1 == None or self.p2 == None:
QMessageBox.information(
None, QCoreApplication.translate("digitizingtools", "Cancel"),
QCoreApplication.translate("digitizingtools",
"Polygon side not selected."))
else:
touch_p1_p2 = self.selected_feature.geometry().touches(
QgsGeometry.fromPolyline([self.p1, self.p2]))
if (not touch_p1_p2):
QMessageBox.information(
None,
QCoreApplication.translate("digitizingtools", "Cancel"),
QCoreApplication.translate(
"digitizingtools",
"Selected segment should be on the selected polygon."))
else:
#Select tool to create new geometry here
if self.gui.method == "fixed":
new_geom = moveFixed(self.selected_feature.geometry(),
self.p1, self.p2, new_a,
self.multipolygon_detected)
else:
new_geom = moveVariable(self.selected_feature.geometry(),
self.p1, self.p2, new_a,
self.multipolygon_detected)
#Store new geometry on the memory buffer
fid = self.selected_feature.id()
layer = self.iface.activeLayer()
layer.beginEditCommand(
QtCore.QCoreApplication.translate("editcommand",
"Move Side By Area"))
layer.changeGeometry(fid, new_geom)
self.canvas.refresh()
layer.endEditCommand()
