mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
1612 lines
63 KiB
Python
1612 lines
63 KiB
Python
# -*- coding: utf-8 -*-
|
|
#-----------------------------------------------------------
|
|
#
|
|
# fTools
|
|
# Copyright (C) 2008-2011 Carson Farmer
|
|
# EMAIL: carson.farmer (at) gmail.com
|
|
# WEB : http://www.ftools.ca/fTools.html
|
|
#
|
|
# A collection of data management and analysis tools for vector data
|
|
#
|
|
# Geoprocessing functions adapted from 'Geoprocessing Plugin',
|
|
# (C) 2008 by Dr. Horst Duester, Stefan Ziegler
|
|
#-----------------------------------------------------------
|
|
#
|
|
# licensed under the terms of GNU GPL 2
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along
|
|
# with this program; if not, write to the Free Software Foundation, Inc.,
|
|
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
#
|
|
#---------------------------------------------------------------------
|
|
|
|
from PyQt4.QtCore import *
|
|
from PyQt4.QtGui import *
|
|
from qgis.core import *
|
|
from qgis.gui import *
|
|
from ui_frmGeoprocessing import Ui_Dialog
|
|
import ftools_utils
|
|
import sys
|
|
|
|
class GeoprocessingDialog( QDialog, Ui_Dialog ):
|
|
def __init__( self, iface, function ):
|
|
QDialog.__init__( self, iface.mainWindow() )
|
|
self.iface = iface
|
|
self.setupUi( self )
|
|
self.param.setValidator(QDoubleValidator(self.param))
|
|
self.myFunction = function
|
|
QObject.connect( self.btnBrowse, SIGNAL( "clicked()" ), self.outFile )
|
|
QObject.connect( self.inShapeA, SIGNAL( "currentIndexChanged(QString)" ), self.checkA )
|
|
QObject.connect( self.inShapeB, SIGNAL( "currentIndexChanged(QString)" ), self.checkB )
|
|
if function == 4 or function == 1 or function == 2:
|
|
QObject.connect( self.inShapeA, SIGNAL( "currentIndexChanged(QString)" ), self.update )
|
|
self.manageGui()
|
|
self.success = False
|
|
self.cancel_close = self.buttonBox_2.button( QDialogButtonBox.Close )
|
|
self.buttonOk = self.buttonBox_2.button( QDialogButtonBox.Ok )
|
|
self.progressBar.setValue (0 )
|
|
|
|
def checkA( self ):
|
|
inputLayer = unicode( self.inShapeA.currentText() )
|
|
if inputLayer != "":
|
|
changedLayer = ftools_utils.getVectorLayerByName( inputLayer )
|
|
if changedLayer.selectedFeatureCount() != 0:
|
|
self.useSelectedA.setCheckState( Qt.Checked )
|
|
else:
|
|
self.useSelectedA.setCheckState( Qt.Unchecked )
|
|
|
|
def checkB( self ):
|
|
inputLayer = unicode( self.inShapeB.currentText() )
|
|
if inputLayer != "":
|
|
changedLayer = ftools_utils.getVectorLayerByName( inputLayer )
|
|
if changedLayer.selectedFeatureCount() != 0:
|
|
self.useSelectedB.setCheckState( Qt.Checked )
|
|
else:
|
|
self.useSelectedB.setCheckState( Qt.Unchecked )
|
|
|
|
def update( self ):
|
|
self.attrib.clear()
|
|
inputLayer = unicode( self.inShapeA.currentText() )
|
|
if inputLayer != "":
|
|
changedLayer = ftools_utils.getVectorLayerByName( inputLayer )
|
|
changedField = changedLayer.dataProvider().fields()
|
|
for i in changedField:
|
|
self.attrib.addItem( unicode( changedField[i].name() ) )
|
|
if self.myFunction == 4:
|
|
self.attrib.addItem( "--- " + self.tr( "Dissolve all" ) + " ---" )
|
|
|
|
def accept( self ):
|
|
if self.inShapeA.currentText() == "":
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Please specify an input layer" ) )
|
|
elif self.inShapeB.isVisible() and self.inShapeB.currentText() == "":
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Please specify a difference/intersect/union layer" ) )
|
|
elif self.param.isEnabled() and self.param.isVisible() and self.param.text() == "":
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Please specify valid buffer value" ) )
|
|
elif self.attrib.isEnabled() and self.attrib.isVisible() and self.attrib.currentText() == "":
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Please specify dissolve field" ) )
|
|
elif self.outShape.text() == "":
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Please specify output shapefile" ) )
|
|
else:
|
|
changedLayerA = ftools_utils.getVectorLayerByName( self.inShapeA.currentText() )
|
|
changedLayerB = ftools_utils.getVectorLayerByName( self.inShapeB.currentText() )
|
|
# check for selection in layer A
|
|
if self.useSelectedA.isChecked() and changedLayerA.selectedFeatureCount() == 0:
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "No features selected, please uncheck 'Use selected' or make a selection" ) )
|
|
# check for selection in layer B
|
|
elif self.inShapeB.isVisible() and self.useSelectedB.isChecked() and changedLayerB.selectedFeatureCount() == 0:
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "No features selected, please uncheck 'Use selected' or make a selection" ) )
|
|
else:
|
|
self.outShape.clear()
|
|
if self.attrib.isEnabled():
|
|
self.geoprocessing( self.inShapeA.currentText(), self.inShapeB.currentText(),
|
|
unicode( self.attrib.currentText() ), self.mergeOutput.checkState(), self.useSelectedA.checkState(),
|
|
self.useSelectedB.checkState(), self.spnSegments.value() )
|
|
else:
|
|
if self.param.isEnabled() and self.param.isVisible():
|
|
parameter = float( self.param.text() )
|
|
else:
|
|
parameter = None
|
|
self.geoprocessing( self.inShapeA.currentText(), self.inShapeB.currentText(),
|
|
parameter, self.mergeOutput.checkState(), self.useSelectedA.checkState(), self.useSelectedB.checkState(), self.spnSegments.value() )
|
|
|
|
def outFile( self ):
|
|
self.outShape.clear()
|
|
( self.shapefileName, self.encoding ) = ftools_utils.saveDialog( self )
|
|
if self.shapefileName is None or self.encoding is None:
|
|
return
|
|
self.outShape.setText( QString( self.shapefileName ) )
|
|
|
|
def manageGui( self ):
|
|
if self.myFunction == 1: # Buffer
|
|
self.label_2.hide()
|
|
self.inShapeB.hide()
|
|
self.useSelectedB.hide()
|
|
self.label_4.hide()
|
|
self.setWindowTitle( self.tr( "Buffer(s)" ) )
|
|
elif self.myFunction == 2: # Convex hull
|
|
self.label_2.hide()
|
|
self.inShapeB.hide()
|
|
self.useSelectedB.hide()
|
|
self.rdoBuffer.setText( self.tr( "Create single minimum convex hull" ) )
|
|
self.rdoField.setText( self.tr( "Create convex hulls based on input field" ) )
|
|
self.label_4.hide()
|
|
self.param.hide()
|
|
self.lblSegments.hide()
|
|
self.spnSegments.hide()
|
|
self.setWindowTitle( self.tr( "Convex hull(s)" ) )
|
|
self.mergeOutput.hide()
|
|
elif self.myFunction == 4: # Dissolve
|
|
self.label_2.hide()
|
|
self.inShapeB.hide()
|
|
self.useSelectedB.hide()
|
|
self.rdoBuffer.hide()
|
|
self.attrib.setEnabled( True )
|
|
self.param.hide()
|
|
self.rdoField.hide()
|
|
self.mergeOutput.hide()
|
|
self.lblSegments.hide()
|
|
self.spnSegments.hide()
|
|
self.setWindowTitle( self.tr( "Dissolve" ) )
|
|
else:
|
|
self.rdoBuffer.hide()
|
|
self.param.hide()
|
|
self.label_4.hide()
|
|
self.rdoField.hide()
|
|
self.attrib.hide()
|
|
self.mergeOutput.hide()
|
|
self.lblSegments.hide()
|
|
self.spnSegments.hide()
|
|
if self.myFunction == 3: # Difference
|
|
self.label_2.setText( self.tr( "Difference layer" ) )
|
|
self.setWindowTitle( self.tr( "Difference" ) )
|
|
elif self.myFunction == 5: # Intersect
|
|
self.label_2.setText( self.tr( "Intersect layer" ) )
|
|
self.setWindowTitle( self.tr( "Intersect" ) )
|
|
elif self.myFunction == 7: # Symetrical difference
|
|
self.label_2.setText( self.tr( "Difference layer" ) )
|
|
self.setWindowTitle( self.tr( "Symetrical difference" ) )
|
|
self.useSelectedA.hide()
|
|
self.useSelectedB.hide()
|
|
elif self.myFunction == 8: # Clip
|
|
self.label_2.setText( self.tr( "Clip layer" ) )
|
|
self.setWindowTitle( self.tr( "Clip" ) )
|
|
else: # Union
|
|
self.label_2.setText( self.tr( "Union layer" ) )
|
|
self.setWindowTitle( self.tr( "Union" ) )
|
|
self.useSelectedA.hide()
|
|
self.useSelectedB.hide()
|
|
self.resize(381, 100)
|
|
self.populateLayers()
|
|
|
|
def populateLayers( self ):
|
|
myListA = []
|
|
myListB = []
|
|
self.inShapeA.clear()
|
|
self.inShapeB.clear()
|
|
|
|
if self.myFunction == 4:
|
|
myListA = ftools_utils.getLayerNames( [ QGis.Polygon ] )
|
|
myListB = []
|
|
else:
|
|
myListA = ftools_utils.getLayerNames( [ QGis.Point, QGis.Line, QGis.Polygon ] )
|
|
myListB = ftools_utils.getLayerNames( [ QGis.Point, QGis.Line, QGis.Polygon ] )
|
|
self.inShapeA.addItems( myListA )
|
|
self.inShapeB.addItems( myListB )
|
|
|
|
#1: Buffer
|
|
#2: Convex Hull
|
|
#3: Difference
|
|
#4: Dissolve
|
|
#5: Intersection
|
|
#6: Union
|
|
#7: Symetrical Difference
|
|
#8: Clip
|
|
|
|
def geoprocessing( self, myLayerA, myLayerB, myParam, myMerge, mySelectionA, mySelectionB, mySegments ):
|
|
check = QFile( self.shapefileName )
|
|
if check.exists():
|
|
if not QgsVectorFileWriter.deleteShapeFile( self.shapefileName ):
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Unable to delete existing shapefile." ) )
|
|
return
|
|
self.buttonOk.setEnabled( False )
|
|
self.testThread = geoprocessingThread( self.iface.mainWindow(), self, self.myFunction, myLayerA,
|
|
myLayerB, myParam, myMerge, mySelectionA, mySelectionB, mySegments, self.shapefileName, self.encoding )
|
|
QObject.connect( self.testThread, SIGNAL( "runFinished(PyQt_PyObject)" ), self.runFinishedFromThread )
|
|
QObject.connect( self.testThread, SIGNAL( "runStatus(PyQt_PyObject)" ), self.runStatusFromThread )
|
|
QObject.connect( self.testThread, SIGNAL( "runRange(PyQt_PyObject)" ), self.runRangeFromThread )
|
|
self.cancel_close.setText( self.tr("Cancel") )
|
|
QObject.connect( self.cancel_close, SIGNAL( "clicked()" ), self.cancelThread )
|
|
self.testThread.start()
|
|
return True
|
|
|
|
def cancelThread( self ):
|
|
self.testThread.stop()
|
|
self.buttonOk.setEnabled( True )
|
|
|
|
def runFinishedFromThread( self, results ):
|
|
self.testThread.stop()
|
|
self.buttonOk.setEnabled( True )
|
|
self.cancel_close.setText( self.tr("Close") )
|
|
QObject.disconnect( self.cancel_close, SIGNAL( "clicked()" ), self.cancelThread )
|
|
out_text = ""
|
|
if results[3] is not None:
|
|
QMessageBox.warning( self, self.tr( "Geoprocessing" ),
|
|
self.tr( "No output created. File creation error:\n%1" )
|
|
.arg( results[3] ) )
|
|
return
|
|
if (not results[2] is None and not results[2]) or not results[1] or not results [0]:
|
|
out_text = self.tr( "\nWarnings:" )
|
|
end_text = self.tr( "\nSome output geometries may be missing or invalid.\n\nWould you like to add the new layer anyway?" )
|
|
else:
|
|
out_text = "\n"
|
|
end_text = self.tr( "\n\nWould you like to add the new layer to the TOC?" )
|
|
if not results[2] is None:
|
|
if not results[2]:
|
|
out_text = out_text + self.tr( "\nInput CRS error: Different input coordinate reference systems detected, results may not be as expected.")
|
|
else:
|
|
out_text = out_text + self.tr( "\nInput CRS error: One or more input layers missing coordinate reference information, results may not be as expected.")
|
|
if not results[1]:
|
|
out_text = out_text + self.tr( "\nFeature geometry error: One or more output features ignored due to invalid geometry.")
|
|
if not results[0]:
|
|
out_text = out_text + self.tr( "\nGEOS geoprocessing error: One or more input features have invalid geometry.")
|
|
addToTOC = QMessageBox.question( self, self.tr("Geoprocessing"), self.tr( "Created output shapefile:\n%1\n%2%3" ).arg( unicode( self.shapefileName ) ).arg( out_text ).arg( end_text ), QMessageBox.Yes, QMessageBox.No, QMessageBox.NoButton )
|
|
if addToTOC == QMessageBox.Yes:
|
|
if not ftools_utils.addShapeToCanvas( unicode( self.shapefileName ) ):
|
|
QMessageBox.warning( self, self.tr("Geoprocessing"), self.tr( "Error loading output shapefile:\n%1" ).arg( unicode( self.shapefileName ) ))
|
|
self.populateLayers()
|
|
|
|
def runStatusFromThread( self, status ):
|
|
self.progressBar.setValue( status )
|
|
|
|
def runRangeFromThread( self, range_vals ):
|
|
self.progressBar.setRange( range_vals[ 0 ], range_vals[ 1 ] )
|
|
|
|
class geoprocessingThread( QThread ):
|
|
def __init__( self, parentThread, parentObject, function, myLayerA, myLayerB,
|
|
myParam, myMerge, mySelectionA, mySelectionB, mySegments, myName, myEncoding ):
|
|
QThread.__init__( self, parentThread )
|
|
self.parent = parentObject
|
|
self.running = False
|
|
self.myFunction = function
|
|
self.myLayerA = myLayerA
|
|
self.myLayerB = myLayerB
|
|
self.myParam = myParam
|
|
self.myMerge = myMerge
|
|
self.mySelectionA = mySelectionA
|
|
self.mySelectionB = mySelectionB
|
|
self.mySegments = int( mySegments )
|
|
self.myName = myName
|
|
self.myEncoding = myEncoding
|
|
|
|
def run( self ):
|
|
self.running = True
|
|
self.vlayerA = ftools_utils.getVectorLayerByName( self.myLayerA )
|
|
error = None
|
|
if self.myFunction == 1 or self.myFunction == 2 or self.myFunction == 4:
|
|
( self.myParam, useField ) = self.checkParameter( self.vlayerA, self.myParam )
|
|
if not self.myParam is None:
|
|
if self.myFunction == 1:
|
|
geos, feature, match, error = self.buffering( useField )
|
|
elif self.myFunction == 2:
|
|
geos, feature, match, error = self.convex_hull( useField )
|
|
elif self.myFunction == 4:
|
|
geos, feature, match, error = self.dissolve( useField )
|
|
else:
|
|
self.vlayerB = ftools_utils.getVectorLayerByName( self.myLayerB )
|
|
if self.myFunction == 3:
|
|
geos, feature, match, error = self.difference()
|
|
elif self.myFunction == 5:
|
|
geos, feature, match, error = self.intersect()
|
|
elif self.myFunction == 6:
|
|
geos, feature, match, error = self.union()
|
|
elif self.myFunction == 7:
|
|
geos, feature, match, error = self.symetrical_difference()
|
|
elif self.myFunction == 8:
|
|
geos, feature, match, error = self.clip()
|
|
self.emit( SIGNAL( "runFinished(PyQt_PyObject)" ), (geos, feature, match, error) )
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
|
|
def stop(self):
|
|
self.running = False
|
|
|
|
def buffering( self, useField ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrs = vproviderA.attributeIndexes()
|
|
vproviderA.select( allAttrs )
|
|
fields = vproviderA.fields()
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, QGis.WKBPolygon, vproviderA.crs() )
|
|
# check if writer was created properly, if not, return with error
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, True, writer.errorMessage()
|
|
outFeat = QgsFeature()
|
|
inFeat = QgsFeature()
|
|
inGeom = QgsGeometry()
|
|
outGeom = QgsGeometry()
|
|
nElement = 0
|
|
# there is selection in input layer
|
|
if self.mySelectionA:
|
|
nFeat = self.vlayerA.selectedFeatureCount()
|
|
selectionA = self.vlayerA.selectedFeatures()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
# with dissolve
|
|
if self.myMerge:
|
|
first = True
|
|
for inFeat in selectionA:
|
|
atMap = inFeat.attributeMap()
|
|
if useField:
|
|
value = atMap[ self.myParam ].doDouble()[ 0 ]
|
|
else:
|
|
value = self.myParam
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
try:
|
|
outGeom = inGeom.buffer( float( value ), self.mySegments )
|
|
if first:
|
|
tempGeom = QgsGeometry( outGeom )
|
|
first = False
|
|
else:
|
|
try:
|
|
tempGeom = tempGeom.combine( outGeom )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
try:
|
|
outFeat.setGeometry( tempGeom )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
# without dissolve
|
|
else:
|
|
for inFeat in selectionA:
|
|
atMap = inFeat.attributeMap()
|
|
if useField:
|
|
value = atMap[ self.myParam ].toDouble()[ 0 ]
|
|
else:
|
|
value = self.myParam
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
try:
|
|
outGeom = inGeom.buffer( float( value ), self.mySegments )
|
|
try:
|
|
outFeat.setGeometry( outGeom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
# there is no selection in input layer
|
|
else:
|
|
nFeat = vproviderA.featureCount()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
# with dissolve
|
|
if self.myMerge:
|
|
first = True
|
|
while vproviderA.nextFeature( inFeat ):
|
|
atMap = inFeat.attributeMap()
|
|
if useField:
|
|
value = atMap[ self.myParam ].toDouble()[ 0 ]
|
|
else:
|
|
value = self.myParam
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
try:
|
|
outGeom = inGeom.buffer( float( value ), self.mySegments )
|
|
if first:
|
|
tempGeom = QgsGeometry( outGeom )
|
|
first = False
|
|
else:
|
|
try:
|
|
tempGeom = tempGeom.combine( outGeom )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
try:
|
|
outFeat.setGeometry( tempGeom )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
# without dissolve
|
|
else:
|
|
vproviderA.rewind()
|
|
while vproviderA.nextFeature( inFeat ):
|
|
atMap = inFeat.attributeMap()
|
|
if useField:
|
|
value = atMap[ self.myParam ].toDouble()[ 0 ]
|
|
else:
|
|
value = self.myParam
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
try:
|
|
outGeom = inGeom.buffer( float( value ), self.mySegments )
|
|
try:
|
|
outFeat.setGeometry( outGeom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, True, None
|
|
|
|
def convex_hull(self, useField ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
vproviderA.select(allAttrsA)
|
|
fields = vproviderA.fields()
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, QGis.WKBPolygon, vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, True, writer.errorMessage()
|
|
inFeat = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
inGeom = QgsGeometry()
|
|
outGeom = QgsGeometry()
|
|
nElement = 0
|
|
|
|
# there is selection in input layer
|
|
if self.mySelectionA:
|
|
nFeat = self.vlayerA.selectedFeatureCount()
|
|
selectionA = self.vlayerA.selectedFeatures()
|
|
if useField:
|
|
unique = ftools_utils.getUniqueValues( vproviderA, self.myParam )
|
|
nFeat = nFeat * len( unique )
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
for i in unique:
|
|
hull = []
|
|
first = True
|
|
outID = 0
|
|
for inFeat in selectionA:
|
|
atMap = inFeat.attributeMap()
|
|
idVar = atMap[ self.myParam ]
|
|
if idVar.toString().trimmed() == i.toString().trimmed():
|
|
if first:
|
|
outID = idVar
|
|
first = False
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
points = ftools_utils.extractPoints( inGeom )
|
|
hull.extend( points )
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
if len( hull ) >= 3:
|
|
tmpGeom = QgsGeometry( outGeom.fromMultiPoint( hull ) )
|
|
try:
|
|
outGeom = tmpGeom.convexHull()
|
|
outFeat.setGeometry( outGeom )
|
|
(area, perim) = self.simpleMeasure( outGeom )
|
|
outFeat.addAttribute( 0, QVariant( outID ) )
|
|
outFeat.addAttribute( 1, QVariant( area ) )
|
|
outFeat.addAttribute( 2, QVariant( perim ) )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
else:
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
hull = []
|
|
for inFeat in selectionA:
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
points = ftools_utils.extractPoints( inGeom )
|
|
hull.extend( points )
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
tmpGeom = QgsGeometry( outGeom.fromMultiPoint( hull ) )
|
|
try:
|
|
outGeom = tmpGeom.convexHull()
|
|
outFeat.setGeometry( outGeom )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
# there is no selection in input layer
|
|
else:
|
|
rect = self.vlayerA.extent()
|
|
nFeat = vproviderA.featureCount()
|
|
if useField:
|
|
unique = ftools_utils.getUniqueValues( vproviderA, self.myParam )
|
|
nFeat = nFeat * len( unique )
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
for i in unique:
|
|
hull = []
|
|
first = True
|
|
outID = 0
|
|
vproviderA.select( allAttrsA )#, rect )
|
|
#vproviderA.rewind()
|
|
while vproviderA.nextFeature( inFeat ):
|
|
atMap = inFeat.attributeMap()
|
|
idVar = atMap[ self.myParam ]
|
|
if idVar.toString().trimmed() == i.toString().trimmed():
|
|
if first:
|
|
outID = idVar
|
|
first = False
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
points = ftools_utils.extractPoints( inGeom )
|
|
hull.extend( points )
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
if len( hull ) >= 3:
|
|
tmpGeom = QgsGeometry( outGeom.fromMultiPoint( hull ) )
|
|
try:
|
|
outGeom = tmpGeom.convexHull()
|
|
outFeat.setGeometry( outGeom )
|
|
(area, perim) = self.simpleMeasure( outGeom )
|
|
outFeat.addAttribute( 0, QVariant( outID ) )
|
|
outFeat.addAttribute( 1, QVariant( area ) )
|
|
outFeat.addAttribute( 2, QVariant( perim ) )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
else:
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
hull = []
|
|
#vproviderA.rewind()
|
|
vproviderA.select(allAttrsA)
|
|
while vproviderA.nextFeature( inFeat ):
|
|
inGeom = QgsGeometry( inFeat.geometry() )
|
|
points = ftools_utils.extractPoints( inGeom )
|
|
hull.extend( points )
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
tmpGeom = QgsGeometry( outGeom.fromMultiPoint( hull ) )
|
|
try:
|
|
outGeom = tmpGeom.convexHull()
|
|
outFeat.setGeometry( outGeom )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, True, None
|
|
|
|
def dissolve( self, useField ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
fields = vproviderA.fields()
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, vproviderA.geometryType(), vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, True, writer.errorMessage()
|
|
inFeat = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
vproviderA.rewind()
|
|
nElement = 0
|
|
# there is selection in input layer
|
|
if self.mySelectionA:
|
|
nFeat = self.vlayerA.selectedFeatureCount()
|
|
selectionA = self.vlayerA.selectedFeatures()
|
|
if not useField:
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
first = True
|
|
for inFeat in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
if first:
|
|
attrs = inFeat.attributeMap()
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
outFeat.setGeometry( tmpInGeom )
|
|
first = False
|
|
else:
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
tmpOutGeom = QgsGeometry( outFeat.geometry() )
|
|
try:
|
|
tmpOutGeom = QgsGeometry( tmpOutGeom.combine( tmpInGeom ) )
|
|
outFeat.setGeometry( tmpOutGeom )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
outFeat.setAttributeMap( attrs )
|
|
writer.addFeature( outFeat )
|
|
else:
|
|
unique = vproviderA.uniqueValues( int( self.myParam ) )
|
|
nFeat = nFeat * len( unique )
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
for item in unique:
|
|
first = True
|
|
add = False
|
|
vproviderA.select( allAttrsA )
|
|
vproviderA.rewind()
|
|
for inFeat in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
atMap = inFeat.attributeMap()
|
|
tempItem = atMap[ self.myParam ]
|
|
if tempItem.toString().trimmed() == item.toString().trimmed():
|
|
add = True
|
|
if first:
|
|
QgsGeometry( inFeat.geometry() )
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
outFeat.setGeometry( tmpInGeom )
|
|
first = False
|
|
attrs = inFeat.attributeMap()
|
|
else:
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
tmpOutGeom = QgsGeometry( outFeat.geometry() )
|
|
try:
|
|
tmpOutGeom = QgsGeometry( tmpOutGeom.combine( tmpInGeom ) )
|
|
outFeat.setGeometry( tmpOutGeom )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
add = False
|
|
if add:
|
|
outFeat.setAttributeMap( attrs )
|
|
writer.addFeature( outFeat )
|
|
# there is no selection in input layer
|
|
else:
|
|
nFeat = vproviderA.featureCount()
|
|
if not useField:
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
first = True
|
|
while vproviderA.nextFeature( inFeat ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
if first:
|
|
attrs = inFeat.attributeMap()
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
outFeat.setGeometry( tmpInGeom )
|
|
first = False
|
|
else:
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
tmpOutGeom = QgsGeometry( outFeat.geometry() )
|
|
try:
|
|
tmpOutGeom = QgsGeometry( tmpOutGeom.combine( tmpInGeom ) )
|
|
outFeat.setGeometry( tmpOutGeom )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
outFeat.setAttributeMap( attrs )
|
|
writer.addFeature( outFeat )
|
|
else:
|
|
unique = vproviderA.uniqueValues( int( self.myParam ) )
|
|
nFeat = nFeat * len( unique )
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
for item in unique:
|
|
first = True
|
|
add = True
|
|
vproviderA.select( allAttrsA )
|
|
vproviderA.rewind()
|
|
while vproviderA.nextFeature( inFeat ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
atMap = inFeat.attributeMap()
|
|
tempItem = atMap[ self.myParam ]
|
|
if tempItem.toString().trimmed() == item.toString().trimmed():
|
|
if first:
|
|
QgsGeometry( inFeat.geometry() )
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
outFeat.setGeometry( tmpInGeom )
|
|
first = False
|
|
attrs = inFeat.attributeMap()
|
|
else:
|
|
tmpInGeom = QgsGeometry( inFeat.geometry() )
|
|
tmpOutGeom = QgsGeometry( outFeat.geometry() )
|
|
try:
|
|
tmpOutGeom = QgsGeometry( tmpOutGeom.combine( tmpInGeom ) )
|
|
outFeat.setGeometry( tmpOutGeom )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
add = False
|
|
if add:
|
|
outFeat.setAttributeMap( attrs )
|
|
writer.addFeature( outFeat )
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, True, None
|
|
|
|
def difference( self ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
vproviderA.select( allAttrsA )
|
|
vproviderB = self.vlayerB.dataProvider()
|
|
allAttrsB = vproviderB.attributeIndexes()
|
|
vproviderB.select( allAttrsB )
|
|
fields = vproviderA.fields()
|
|
# check for crs compatibility
|
|
crsA = vproviderA.crs()
|
|
crsB = vproviderB.crs()
|
|
if not crsA.isValid() or not crsB.isValid():
|
|
crs_match = None
|
|
else:
|
|
crs_match = crsA == crsB
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, vproviderA.geometryType(), vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, writer.errorMessage()
|
|
inFeatA = QgsFeature()
|
|
inFeatB = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
index = ftools_utils.createIndex( vproviderB )
|
|
nElement = 0
|
|
# there is selection in input layer
|
|
if self.mySelectionA:
|
|
nFeat = self.vlayerA.selectedFeatureCount()
|
|
selectionA = self.vlayerA.selectedFeatures()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
# we have selection in overlay layer
|
|
if self.mySelectionB:
|
|
selectionB = self.vlayerB.selectedFeaturesIds()
|
|
for inFeatA in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
add = True
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
# is intersect feature in selection
|
|
if id in selectionB:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
add = False
|
|
break
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
# we have no selection in overlay layer
|
|
else:
|
|
for inFeatA in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
add = True
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
add = False
|
|
break
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
# there is no selection in input layer
|
|
else:
|
|
nFeat = vproviderA.featureCount()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0 )
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
vproviderA.rewind()
|
|
# we have selection in overlay layer
|
|
if self.mySelectionB:
|
|
selectionB = self.vlayerB.selectedFeaturesIds()
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
add = True
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
# now check if id in selection
|
|
if id in selectionB:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
add = False
|
|
break
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
# we have no selection in overlay layer
|
|
else:
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
add = True
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
add = False
|
|
break
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, None
|
|
|
|
def intersect( self ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
vproviderA.select( allAttrsA )
|
|
vproviderB = self.vlayerB.dataProvider()
|
|
allAttrsB = vproviderB.attributeIndexes()
|
|
vproviderB.select( allAttrsB )
|
|
# check for crs compatibility
|
|
crsA = vproviderA.crs()
|
|
crsB = vproviderB.crs()
|
|
if not crsA.isValid() or not crsB.isValid():
|
|
crs_match = None
|
|
else:
|
|
crs_match = crsA == crsB
|
|
fields = ftools_utils.combineVectorFields( self.vlayerA, self.vlayerB )
|
|
longNames = ftools_utils.checkFieldNameLength( fields )
|
|
if not longNames.isEmpty():
|
|
message = QString( 'Following field names are longer than 10 characters:\n%1' ).arg( longNames.join( '\n' ) )
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, message
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, vproviderA.geometryType(), vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, writer.errorMessage()
|
|
inFeatA = QgsFeature()
|
|
inFeatB = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
index = ftools_utils.createIndex( vproviderB )
|
|
nElement = 0
|
|
# there is selection in input layer
|
|
if self.mySelectionA:
|
|
nFeat = self.vlayerA.selectedFeatureCount()
|
|
selectionA = self.vlayerA.selectedFeatures()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
# we have selection in overlay layer
|
|
if self.mySelectionB:
|
|
selectionB = self.vlayerB.selectedFeaturesIds()
|
|
for inFeatA in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMapA = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
if id in selectionB:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if geom.intersects( tmpGeom ):
|
|
atMapB = inFeatB.attributeMap()
|
|
int_geom = QgsGeometry( geom.intersection( tmpGeom ) )
|
|
if int_geom.wkbType() == 7:
|
|
int_com = geom.combine( tmpGeom )
|
|
int_sym = geom.symDifference( tmpGeom )
|
|
int_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( int_geom )
|
|
outFeat.setAttributeMap( ftools_utils.combineVectorAttributes( atMapA, atMapB ) )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
# we don't have selection in overlay layer
|
|
else:
|
|
for inFeatA in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMapA = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if geom.intersects( tmpGeom ):
|
|
atMapB = inFeatB.attributeMap()
|
|
int_geom = QgsGeometry( geom.intersection( tmpGeom ) )
|
|
if int_geom.wkbType() == 7:
|
|
int_com = geom.combine( tmpGeom )
|
|
int_sym = geom.symDifference( tmpGeom )
|
|
int_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( int_geom )
|
|
outFeat.setAttributeMap( ftools_utils.combineVectorAttributes( atMapA, atMapB ) )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
EATURE_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
# there is no selection in input layer
|
|
else:
|
|
nFeat = vproviderA.featureCount()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
vproviderA.rewind()
|
|
# we have selection in overlay layer
|
|
if self.mySelectionB:
|
|
selectionB = self.vlayerB.selectedFeaturesIds()
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMapA = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
if id in selectionB:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if geom.intersects( tmpGeom ):
|
|
atMapB = inFeatB.attributeMap()
|
|
int_geom = QgsGeometry( geom.intersection( tmpGeom ) )
|
|
if int_geom.wkbType() == 7:
|
|
int_com = geom.combine( tmpGeom )
|
|
int_sym = geom.symDifference( tmpGeom )
|
|
int_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( int_geom )
|
|
outFeat.setAttributeMap( ftools_utils.combineVectorAttributes( atMapA, atMapB ) )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
# we have no selection in overlay layer
|
|
else:
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMapA = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if geom.intersects( tmpGeom ):
|
|
atMapB = inFeatB.attributeMap()
|
|
int_geom = QgsGeometry( geom.intersection( tmpGeom ) )
|
|
if int_geom.wkbType() == 7:
|
|
int_com = geom.combine( tmpGeom )
|
|
int_sym = geom.symDifference( tmpGeom )
|
|
int_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( int_geom )
|
|
outFeat.setAttributeMap( ftools_utils.combineVectorAttributes( atMapA, atMapB ) )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, None
|
|
|
|
def union( self ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
vproviderA.select( allAttrsA )
|
|
vproviderB = self.vlayerB.dataProvider()
|
|
allAttrsB = vproviderB.attributeIndexes()
|
|
vproviderB.select( allAttrsB )
|
|
|
|
# check for crs compatibility
|
|
crsA = vproviderA.crs()
|
|
crsB = vproviderB.crs()
|
|
if not crsA.isValid() or not crsB.isValid():
|
|
crs_match = None
|
|
else:
|
|
crs_match = crsA == crsB
|
|
|
|
fields = ftools_utils.combineVectorFields( self.vlayerA, self.vlayerB )
|
|
longNames = ftools_utils.checkFieldNameLength( fields )
|
|
if not longNames.isEmpty():
|
|
message = QString( 'Following field names are longer than 10 characters:\n%1' ).arg( longNames.join( '\n' ) )
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, message
|
|
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding, fields,
|
|
vproviderA.geometryType(), vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, writer.errorMessage()
|
|
|
|
inFeatA = QgsFeature()
|
|
inFeatB = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
indexA = ftools_utils.createIndex( vproviderB )
|
|
indexB = ftools_utils.createIndex( vproviderA )
|
|
|
|
nFeat = vproviderA.featureCount() * vproviderB.featureCount()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
|
|
vproviderA.rewind()
|
|
count = 0
|
|
nElement = 0
|
|
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
nElement += 1
|
|
found = False
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMapA = inFeatA.attributeMap()
|
|
intersects = indexA.intersects( geom.boundingBox() )
|
|
if len( intersects ) < 1:
|
|
try:
|
|
outFeat.setGeometry( geom )
|
|
outFeat.setAttributeMap( atMapA )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
# this really shouldn't happen, as we
|
|
# haven't edited the input geom at all
|
|
FEATURE_EXCEPT = False
|
|
else:
|
|
for id in intersects:
|
|
count += 1
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
atMapB = inFeatB.attributeMap()
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if geom.intersects( tmpGeom ):
|
|
found = True
|
|
int_geom = geom.intersection( tmpGeom )
|
|
|
|
if int_geom is None:
|
|
# There was a problem creating the intersection
|
|
GEOS_EXCEPT = False
|
|
int_geom = QgsGeometry()
|
|
else:
|
|
int_geom = QgsGeometry(int_geom)
|
|
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = diff_geom.difference( tmpGeom )
|
|
if diff_geom is None:
|
|
# It's possible there was an error here?
|
|
diff_geom = QgsGeometry()
|
|
else:
|
|
diff_geom = QgsGeometry(diff_geom)
|
|
|
|
if int_geom.wkbType() == 0:
|
|
# intersection produced different geomety types
|
|
temp_list = int_geom.asGeometryCollection()
|
|
for i in temp_list:
|
|
if i.type() == geom.type():
|
|
int_geom = QgsGeometry( i )
|
|
try:
|
|
outFeat.setGeometry( int_geom )
|
|
outFeat.setAttributeMap( ftools_utils.combineVectorAttributes( atMapA, atMapB ) )
|
|
writer.addFeature( outFeat )
|
|
except Exception, err:
|
|
FEATURE_EXCEPT = False
|
|
else:
|
|
# this only happends if the bounding box
|
|
# intersects, but the geometry doesn't
|
|
try:
|
|
outFeat.setGeometry( geom )
|
|
outFeat.setAttributeMap( atMapA )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
# also shoudn't ever happen
|
|
FEATURE_EXCEPT = False
|
|
except Exception, err:
|
|
GEOS_EXCEPT = False
|
|
found = False
|
|
|
|
if found:
|
|
try:
|
|
if diff_geom.wkbType() == 0:
|
|
temp_list = diff_geom.asGeometryCollection()
|
|
for i in temp_list:
|
|
if i.type() == geom.type():
|
|
diff_geom = QgsGeometry( i )
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMapA )
|
|
writer.addFeature( outFeat )
|
|
except Exception, err:
|
|
FEATURE_EXCEPT = False
|
|
|
|
length = len( vproviderA.fields().values() )
|
|
vproviderB.rewind()
|
|
|
|
while vproviderB.nextFeature( inFeatA ):
|
|
add = False
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap().values()
|
|
atMap = dict( zip( range( length, length + len( atMap ) ), atMap ) )
|
|
intersects = indexB.intersects( geom.boundingBox() )
|
|
|
|
if len(intersects) < 1:
|
|
try:
|
|
outFeat.setGeometry( geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except Exception, err:
|
|
FEATURE_EXCEPT = False
|
|
else:
|
|
for id in intersects:
|
|
vproviderA.featureAtId( int( id ), inFeatB , True, allAttrsA )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
add = True
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
else:
|
|
# this only happends if the bounding box
|
|
# intersects, but the geometry doesn't
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except Exception, err:
|
|
add = False
|
|
GEOS_EXCEPT = False
|
|
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except Exception, err:
|
|
FEATURE_EXCEPT = False
|
|
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
nElement += 1
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, None
|
|
|
|
def symetrical_difference( self ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
vproviderA.select( allAttrsA )
|
|
vproviderB = self.vlayerB.dataProvider()
|
|
allAttrsB = vproviderB.attributeIndexes()
|
|
vproviderB.select( allAttrsB )
|
|
# check for crs compatibility
|
|
crsA = vproviderA.crs()
|
|
crsB = vproviderB.crs()
|
|
if not crsA.isValid() or not crsB.isValid():
|
|
crs_match = None
|
|
else:
|
|
crs_match = crsA == crsB
|
|
fields = ftools_utils.combineVectorFields( self.vlayerA, self.vlayerB )
|
|
longNames = ftools_utils.checkFieldNameLength( fields )
|
|
if not longNames.isEmpty():
|
|
message = QString( 'Following field names are longer than 10 characters:\n%1' ).arg( longNames.join( '\n' ) )
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, message
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, vproviderA.geometryType(), vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, writer.errorMessage()
|
|
inFeatA = QgsFeature()
|
|
inFeatB = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
indexA = ftools_utils.createIndex( vproviderB )
|
|
indexB = ftools_utils.createIndex( vproviderA )
|
|
nFeat = vproviderA.featureCount() * vproviderB.featureCount()
|
|
nElement = 0
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
vproviderA.rewind()
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
add = True
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMapA = inFeatA.attributeMap()
|
|
intersects = indexA.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
except:
|
|
add = False
|
|
GEOS_EXCEPT = False
|
|
break
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMapA )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
length = len( vproviderA.fields().values() )
|
|
vproviderB.rewind()
|
|
while vproviderB.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
add = True
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
diff_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap().values()
|
|
atMap = dict( zip( range( length, length + len( atMap ) ), atMap ) )
|
|
intersects = indexB.intersects( geom.boundingBox() )
|
|
for id in intersects:
|
|
vproviderA.featureAtId( int( id ), inFeatB , True, allAttrsA )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
try:
|
|
if diff_geom.intersects( tmpGeom ):
|
|
diff_geom = QgsGeometry( diff_geom.difference( tmpGeom ) )
|
|
except:
|
|
add = False
|
|
GEOS_EXCEPT = False
|
|
break
|
|
if add:
|
|
try:
|
|
outFeat.setGeometry( diff_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEATURE_EXCEPT = False
|
|
continue
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, None
|
|
|
|
def clip( self ):
|
|
GEOS_EXCEPT = True
|
|
FEATURE_EXCEPT = True
|
|
vproviderA = self.vlayerA.dataProvider()
|
|
allAttrsA = vproviderA.attributeIndexes()
|
|
vproviderA.select( allAttrsA )
|
|
vproviderB = self.vlayerB.dataProvider()
|
|
allAttrsB = vproviderB.attributeIndexes()
|
|
vproviderB.select( allAttrsB )
|
|
# check for crs compatibility
|
|
crsA = vproviderA.crs()
|
|
crsB = vproviderB.crs()
|
|
if not crsA.isValid() or not crsB.isValid():
|
|
crs_match = None
|
|
else:
|
|
crs_match = crsA == crsB
|
|
fields = vproviderA.fields()
|
|
writer = QgsVectorFileWriter( self.myName, self.myEncoding,
|
|
fields, vproviderA.geometryType(), vproviderA.crs() )
|
|
if writer.hasError():
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, writer.errorMessage()
|
|
inFeatA = QgsFeature()
|
|
inFeatB = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
index = ftools_utils.createIndex( vproviderB )
|
|
vproviderA.rewind()
|
|
nElement = 0
|
|
# there is selection in input layer
|
|
if self.mySelectionA:
|
|
nFeat = self.vlayerA.selectedFeatureCount()
|
|
selectionA = self.vlayerA.selectedFeatures()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
# we have selection in overlay layer
|
|
if self.mySelectionB:
|
|
selectionB = self.vlayerB.selectedFeaturesIds()
|
|
for inFeatA in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
int_geom = QgsGeometry( geom )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
found = False
|
|
first = True
|
|
for id in intersects:
|
|
if id in selectionB:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
if tmpGeom.intersects( geom ):
|
|
found = True
|
|
if first:
|
|
outFeat.setGeometry( QgsGeometry( tmpGeom ) )
|
|
first = False
|
|
else:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( cur_geom.combine( tmpGeom ) )
|
|
outFeat.setGeometry( QgsGeometry( new_geom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
if found:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( geom.intersection( cur_geom ) )
|
|
if new_geom.wkbType() == 7:
|
|
int_com = QgsGeometry( geom.combine( cur_geom ) )
|
|
int_sym = QgsGeometry( geom.symDifference( cur_geom ) )
|
|
new_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( new_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEAT_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
# we have no selection in overlay layer
|
|
else:
|
|
for inFeatA in selectionA:
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
found = False
|
|
first = True
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
if tmpGeom.intersects( geom ):
|
|
found = True
|
|
if first:
|
|
outFeat.setGeometry( QgsGeometry( tmpGeom ) )
|
|
first = False
|
|
else:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( cur_geom.combine( tmpGeom ) )
|
|
outFeat.setGeometry( QgsGeometry( new_geom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
if found:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( geom.intersection( cur_geom ) )
|
|
if new_geom.wkbType() == 7:
|
|
int_com = QgsGeometry( geom.combine( cur_geom ) )
|
|
int_sym = QgsGeometry( geom.symDifference( cur_geom ) )
|
|
new_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( new_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEAT_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
# there is no selection in input layer
|
|
else:
|
|
nFeat = vproviderA.featureCount()
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), 0)
|
|
self.emit( SIGNAL( "runRange(PyQt_PyObject)" ), ( 0, nFeat ) )
|
|
# we have selection in overlay layer
|
|
if self.mySelectionB:
|
|
selectionB = self.vlayerB.selectedFeaturesIds()
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
found = False
|
|
first = True
|
|
for id in intersects:
|
|
if id in selectionB:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
if tmpGeom.intersects( geom ):
|
|
found = True
|
|
if first:
|
|
outFeat.setGeometry( QgsGeometry( tmpGeom ) )
|
|
first = False
|
|
else:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( cur_geom.combine( tmpGeom ) )
|
|
outFeat.setGeometry( QgsGeometry( new_geom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
if found:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( geom.intersection( cur_geom ) )
|
|
if new_geom.wkbType() == 7:
|
|
int_com = QgsGeometry( geom.combine( cur_geom ) )
|
|
int_sym = QgsGeometry( geom.symDifference( cur_geom ) )
|
|
new_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( new_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEAT_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
# we have no selection in overlay layer
|
|
else:
|
|
while vproviderA.nextFeature( inFeatA ):
|
|
nElement += 1
|
|
self.emit( SIGNAL( "runStatus(PyQt_PyObject)" ), nElement )
|
|
geom = QgsGeometry( inFeatA.geometry() )
|
|
atMap = inFeatA.attributeMap()
|
|
intersects = index.intersects( geom.boundingBox() )
|
|
first = True
|
|
found = False
|
|
if len( intersects ) > 0:
|
|
for id in intersects:
|
|
vproviderB.featureAtId( int( id ), inFeatB , True, allAttrsB )
|
|
tmpGeom = QgsGeometry( inFeatB.geometry() )
|
|
if tmpGeom.intersects( geom ):
|
|
found = True
|
|
if first:
|
|
outFeat.setGeometry( QgsGeometry( tmpGeom ) )
|
|
first = False
|
|
else:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( cur_geom.combine( tmpGeom ) )
|
|
outFeat.setGeometry( QgsGeometry( new_geom ) )
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
break
|
|
if found:
|
|
try:
|
|
cur_geom = QgsGeometry( outFeat.geometry() )
|
|
new_geom = QgsGeometry( geom.intersection( cur_geom ) )
|
|
if new_geom.wkbType() == 7:
|
|
int_com = QgsGeometry( geom.combine( cur_geom ) )
|
|
int_sym = QgsGeometry( geom.symDifference( cur_geom ) )
|
|
new_geom = QgsGeometry( int_com.difference( int_sym ) )
|
|
try:
|
|
outFeat.setGeometry( new_geom )
|
|
outFeat.setAttributeMap( atMap )
|
|
writer.addFeature( outFeat )
|
|
except:
|
|
FEAT_EXCEPT = False
|
|
continue
|
|
except:
|
|
GEOS_EXCEPT = False
|
|
continue
|
|
del writer
|
|
return GEOS_EXCEPT, FEATURE_EXCEPT, crs_match, None
|
|
|
|
def checkParameter( self, layer, param ):
|
|
if self.myFunction == 1:
|
|
if type( param ) == unicode:
|
|
check = layer.dataProvider().fieldNameIndex( param )
|
|
if check == -1:
|
|
return ( None, False )
|
|
else:
|
|
return ( check, True )
|
|
else:
|
|
if type( param ) == float or type( param ) == int:
|
|
return ( param, False )
|
|
else:
|
|
return ( None, False )
|
|
elif self.myFunction == 2:
|
|
if not param is None:
|
|
if type( param ) == unicode:
|
|
check = layer.dataProvider().fieldNameIndex( param )
|
|
if check == -1:
|
|
return ( None, False )
|
|
else:
|
|
return ( check, True )
|
|
else:
|
|
return ( None, False )
|
|
else:
|
|
return ( True, False )
|
|
elif self.myFunction == 4:
|
|
if type( param ) == unicode:
|
|
check = layer.dataProvider().fieldNameIndex( param )
|
|
if check == -1:
|
|
return ( check, False )
|
|
else:
|
|
return ( check, True )
|
|
else:
|
|
return ( None, False )
|
|
|
|
def simpleMeasure( self, inGeom ):
|
|
if inGeom.wkbType() == QGis.WKBPoint:
|
|
pt = QgsPoint()
|
|
pt = inGeom.asPoint()
|
|
attr1 = pt.x()
|
|
attr2 = pt.y()
|
|
else:
|
|
measure = QgsDistanceArea()
|
|
attr1 = measure.measure(inGeom)
|
|
if inGeom.type() == QGis.Polygon:
|
|
attr2 = self.perimMeasure( inGeom, measure )
|
|
else:
|
|
attr2 = attr1
|
|
return ( attr1, attr2 )
|
|
|
|
def perimMeasure( self, inGeom, measure ):
|
|
value = 0.00
|
|
if inGeom.isMultipart():
|
|
poly = inGeom.asMultiPolygon()
|
|
for k in poly:
|
|
for j in k:
|
|
value = value + measure.measureLine( j )
|
|
else:
|
|
poly = inGeom.asPolygon()
|
|
for k in poly:
|
|
value = value + measure.measureLine( k )
|
|
return value
|