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SplitLines.py
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SplitLines.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
SplitLines
A QGIS plugin
Splits Lines at Points
Generated by Plugin Builder: http://g-sherman.github.io/Qgis-Plugin-Builder/
-------------------
begin : 2022-11-21
git sha : $Format:%H$
copyright : (C) 2022 by HSBO
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
"""
from qgis.PyQt.QtCore import QSettings, QTranslator, QCoreApplication, QVariant
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QAction
# Initialize Qt resources from file resources.py
from .resources import *
# Import the code for the dialog
from .SplitLines_dialog import SplitLinesDialog
import os.path
from qgis.core import *
import collections
import math
import processing
# from qgis.core import QgsVectorLayer, QgsVectorFileWriter, QgsFeature, QgsGeometry, QgsProject, QgsField
import shapely.ops
from shapely.wkt import loads
from shapely.geometry import LineString
import qgis
from qgis.PyQt.QtWidgets import QDockWidget
class SplitLines:
"""QGIS Plugin Implementation."""
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir,
'i18n',
'SplitLines_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
QCoreApplication.installTranslator(self.translator)
# Declare instance attributes
self.actions = []
self.menu = self.tr(u'&SplitLines')
# Check if plugin was started the first time in current QGIS session
# Must be set in initGui() to survive plugin reloads
self.first_start = None
# noinspection PyMethodMayBeStatic
def tr(self, message):
"""Get the translation for a string using Qt translation API.
We implement this ourselves since we do not inherit QObject.
:param message: String for translation.
:type message: str, QString
:returns: Translated version of message.
:rtype: QString
"""
# noinspection PyTypeChecker,PyArgumentList,PyCallByClass
return QCoreApplication.translate('SplitLines', message)
def add_action(
self,
icon_path,
text,
callback,
enabled_flag=True,
add_to_menu=True,
add_to_toolbar=True,
status_tip=None,
whats_this=None,
parent=None):
"""Add a toolbar icon to the toolbar.
:param icon_path: Path to the icon for this action. Can be a resource
path (e.g. ':/plugins/foo/bar.png') or a normal file system path.
:type icon_path: str
:param text: Text that should be shown in menu items for this action.
:type text: str
:param callback: Function to be called when the action is triggered.
:type callback: function
:param enabled_flag: A flag indicating if the action should be enabled
by default. Defaults to True.
:type enabled_flag: bool
:param add_to_menu: Flag indicating whether the action should also
be added to the menu. Defaults to True.
:type add_to_menu: bool
:param add_to_toolbar: Flag indicating whether the action should also
be added to the toolbar. Defaults to True.
:type add_to_toolbar: bool
:param status_tip: Optional text to show in a popup when mouse pointer
hovers over the action.
:type status_tip: str
:param parent: Parent widget for the new action. Defaults None.
:type parent: QWidget
:param whats_this: Optional text to show in the status bar when the
mouse pointer hovers over the action.
:returns: The action that was created. Note that the action is also
added to self.actions list.
:rtype: QAction
"""
icon = QIcon(icon_path)
action = QAction(icon, text, parent)
action.triggered.connect(callback)
action.setEnabled(enabled_flag)
if status_tip is not None:
action.setStatusTip(status_tip)
if whats_this is not None:
action.setWhatsThis(whats_this)
if add_to_toolbar:
# Adds plugin icon to Plugins toolbar
self.iface.addToolBarIcon(action)
if add_to_menu:
self.iface.addPluginToMenu(
self.menu,
action)
self.actions.append(action)
return action
def initGui(self):
"""Create the menu entries and toolbar icons inside the QGIS GUI."""
icon_path = ':/plugins/SplitLines/icon.png'
self.add_action(
icon_path,
text=self.tr(u'Split Lines at Points'),
callback=self.run,
parent=self.iface.mainWindow())
# will be set False in run()
self.first_start = True
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
for action in self.actions:
self.iface.removePluginMenu(
self.tr(u'&SplitLines'),
action)
self.iface.removeToolBarIcon(action)
def find_adjacent(self): # for finding adjacent features
selected_ids = self.selected_ids
outlist = []
outinds = []
outset = set()
for j, l in enumerate(selected_ids):
as_set = set(l)
inds = []
for k in outset.copy():
if outlist[k] & as_set:
outset.remove(k)
as_set |= outlist[k]
inds.extend(outinds[k])
outset.add(j)
outlist.append(as_set)
outinds.append(inds + [j])
outinds = [outinds[j] for j in outset]
del outset, outlist
result = [[selected_ids[j] for j in k] for k in outinds]
return result
def mergeLines(self):
baselayer = self.dlg.selectLines.currentLayer()
layer = QgsVectorLayer("Linestring?crs=epsg:25832", "tempMergeLines", "memory")
layerPR = layer.dataProvider()
fieldsL = baselayer.fields()
fieldsL.append(QgsField('plID', QVariant.String))
layerPR.addAttributes(fieldsL)
layer.updateFields()
crs = layer.crs().toWkt()
### mulitLine to singleLine(new layer)
with edit(layer):
for feat in baselayer.getFeatures():
geom = feat.geometry()
if QgsWkbTypes.isSingleType(geom.wkbType()):
# single
points = []
outFeat = QgsFeature()
for pnt in geom.asPolyline():
points.append(QgsPoint(pnt.x(),pnt.y()))
outFeat.setGeometry(QgsGeometry.fromPolyline(points))
attr = feat.attributes()
variables = str(feat[self.dlg.LineAttribut.currentField()]) + ""
if self.dlg.add_1.text() == '-':
variables = variables + ": " + feat[self.dlg.LineAttribut_2.currentField()]
if self.dlg.add_2.text() == '-':
variables = variables + ": " + feat[self.dlg.LineAttribut_3.currentField()]
attr.append(variables)
outFeat.setAttributes(attr)
layerPR.addFeatures([outFeat])
else:
# multipart
for part in geom.asMultiPolyline():
points = []
outFeat = QgsFeature()
for pnt in part:
points.append(QgsPoint(pnt.x(),pnt.y()))
outFeat.setGeometry(QgsGeometry.fromPolyline(points))
attr = feat.attributes()
variables = str(feat[self.dlg.LineAttribut.currentField()]) + ""
if self.dlg.add_1.text() == '-':
variables = variables + ": " + feat[self.dlg.LineAttribut_2.currentField()]
if self.dlg.add_2.text() == '-':
variables = variables + ": " + feat[self.dlg.LineAttribut_3.currentField()]
attr.append(variables)
outFeat.setAttributes(attr)
layerPR.addFeatures([outFeat])
QgsProject.instance().addMapLayer(layer)
# Create the output layer
outMergedLayer = QgsVectorLayer('Linestring?crs='+ crs, 'mergedLines' , 'memory')
prov = outMergedLayer.dataProvider()
fields = layer.fields()
prov.addAttributes(fields)
outMergedLayer.updateFields()
already_processed = []
for feat in layer.getFeatures():
attrs = feat.attributes()
geom = feat.geometry()
curr_id = feat["plID"]
if curr_id not in already_processed:
query = '"plID" = ' + "'" + curr_id + "'"
layer.selectByExpression(query)
selection = layer.getSelectedFeatures()
self.selected_ids = [k.geometry().asPolyline() for k in selection]
adjacent_feats = self.find_adjacent()
for f in adjacent_feats:
first = True
for x in range(0, len(f)):
geom = (QgsGeometry.fromPolyline([QgsPoint(w) for w in f[x]]))
if first:
outFeat = QgsFeature()
outFeat.setGeometry(geom)
outGeom = outFeat.geometry()
first = False
else:
outGeom = outGeom.combine(geom)
outFeat.setAttributes(attrs)
outFeat.setGeometry(outGeom)
prov.addFeatures([outFeat])
already_processed.append(curr_id)
else:
continue
# Add the layer to the Layers panel
QgsProject.instance().addMapLayer(outMergedLayer)
return outMergedLayer
def multiToSingleLines(self):
i=0
for feat2 in self.outLayer.getFeatures():
geom = feat2.geometry()
if QgsWkbTypes.isSingleType(geom.wkbType()):
# single
points = []
f = QgsFeature()
for pnt in geom.asPolyline():
points.append(QgsPoint(pnt.x(),pnt.y()))
f.setGeometry(QgsGeometry.fromPolyline(points))
attributesL2 = feat2.attributes()
f.setAttributes(attributesL2)
f.setAttribute(feat2.fieldNameIndex('spPlugID'), i)
self.layer2PR.addFeature(f)
else:
# multipart
for part in geom.asMultiPolyline():
points = []
f = QgsFeature()
for pnt in part:
points.append(QgsPoint(pnt.x(),pnt.y()))
f.setGeometry(QgsGeometry.fromPolyline(points))
attributesL2 = feat2.attributes()
f.setAttributes(attributesL2)
f.setAttribute(feat2.fieldNameIndex('spPlugID'), i)
self.layer2PR.addFeature(f)
i +=1
QgsProject.instance().addMapLayer(self.layer2)
def sliderChange(self):
self.dlg.selectedDistance.display(self.dlg.DistanceSelect.value())
def pointLayerChange(self):
self.dlg.PointAttribut.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.PointAttribut_2.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.PointAttribut_3.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.attributFromPoint.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.attributToPoint.setLayer(self.dlg.selectPoints.currentLayer())
def lineLayerChange(self):
self.dlg.LineAttribut.setLayer(self.dlg.selectLines.currentLayer())
self.dlg.LineAttribut_2.setLayer(self.dlg.selectLines.currentLayer())
self.dlg.LineAttribut_3.setLayer(self.dlg.selectLines.currentLayer())
def add1Clicked(self):
if self.dlg.add_1.text() == '+':
self.dlg.LineAttribut_2.setHidden(False)
self.dlg.PointAttribut_2.setHidden(False)
self.dlg.add_1.setText('-')
self.dlg.same_2.setHidden(False)
self.dlg.add_2.setHidden(False)
elif self.dlg.add_1.text() == '-':
self.dlg.LineAttribut_2.setHidden(True)
self.dlg.PointAttribut_2.setHidden(True)
self.dlg.add_1.setText('+')
self.dlg.same_2.setHidden(True)
self.dlg.add_2.setHidden(True)
def add2Clicked(self):
if self.dlg.add_2.text() == '+':
self.dlg.LineAttribut_3.setHidden(False)
self.dlg.PointAttribut_3.setHidden(False)
self.dlg.add_2.setText('-')
self.dlg.same_3.setHidden(False)
elif self.dlg.add_2.text() == '-':
self.dlg.LineAttribut_3.setHidden(True)
self.dlg.PointAttribut_3.setHidden(True)
self.dlg.add_2.setText('+')
self.dlg.same_3.setHidden(True)
def run(self):
"""Run method that performs all the real work"""
# Create the dialog with elements (after translation) and keep reference
# Only create GUI ONCE in callback, so that it will only load when the plugin is started
if self.first_start == True:
self.first_start = False
self.dlg = SplitLinesDialog()
self.dlg.add_1.clicked.connect(self.add1Clicked)
self.dlg.add_2.clicked.connect(self.add2Clicked)
self.dlg.selectPoints.layerChanged.connect(self.pointLayerChange)
self.dlg.selectLines.layerChanged.connect(self.lineLayerChange)
self.dlg.DistanceSelect.valueChanged.connect(self.sliderChange)
self.dlg.LineAttribut_2.setHidden(True)
self.dlg.PointAttribut_2.setHidden(True)
self.dlg.add_1.setText('+')
self.dlg.same_2.setHidden(True)
self.dlg.add_2.setHidden(True)
self.dlg.selectLines.setShowCrs(True)
self.dlg.selectLines.setFilters(QgsMapLayerProxyModel.LineLayer)
self.dlg.selectPoints.setShowCrs(True)
self.dlg.selectPoints.setFilters(QgsMapLayerProxyModel.PointLayer)
self.dlg.same_2.setHidden(True)
self.dlg.same_3.setHidden(True)
self.dlg.add_2.setHidden(True)
self.dlg.LineAttribut_2.setHidden(True)
self.dlg.PointAttribut_2.setHidden(True)
self.dlg.LineAttribut_3.setHidden(True)
self.dlg.PointAttribut_3.setHidden(True)
self.dlg.PointAttribut.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.LineAttribut.setLayer(self.dlg.selectLines.currentLayer())
self.dlg.PointAttribut_2.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.LineAttribut_2.setLayer(self.dlg.selectLines.currentLayer())
self.dlg.PointAttribut_3.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.LineAttribut_3.setLayer(self.dlg.selectLines.currentLayer())
self.dlg.attributFromPoint.setLayer(self.dlg.selectPoints.currentLayer())
self.dlg.attributToPoint.setLayer(self.dlg.selectPoints.currentLayer())
# show the dialog
self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
# See if OK was pressed
if result:
pythonConsole = qgis.utils.iface.mainWindow().findChild(QDockWidget, 'PythonConsole')
if not pythonConsole or not pythonConsole.isVisible():
qgis.utils.iface.actionShowPythonDialog().trigger()
consoleWidget = qgis.utils.iface.mainWindow().findChild( QDockWidget, 'PythonConsole' )
consoleWidget.console.shellOut.clearConsole()
### remove old layers
if len(QgsProject.instance().mapLayersByName('result')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('result')[0].id())
### layer for pointbuffer
vl = QgsVectorLayer("polygon?crs=epsg:25832", "tempBuffer", "memory")
pr = vl.dataProvider()
### layer for pointbuffer (nearestPoint)
vlbufferNP = QgsVectorLayer("polygon?crs=epsg:25832", "tempBufferNP", "memory")
prbufferNP = vlbufferNP.dataProvider()
### layer for linien in nearestPointbuffer
fn2 = self.plugin_dir + "/data/tempBufferNPlines.shp"
### layer for nearestPoint
vlN = QgsVectorLayer("point?crs=epsg:25832", "nearestPoint", "memory")
prN = vlN.dataProvider()
### linelayer (multi)
self.outLayer = self.mergeLines()
proutlayer = self.outLayer.dataProvider()
fieldsOL = self.outLayer.fields()
fieldsOL.append(QgsField('spPlugID', QVariant.Int))
fieldsOL.append(QgsField(self.dlg.newAttributeName.text(), QVariant.String))
proutlayer.addAttributes(fieldsOL)
self.outLayer.updateFields()
### layer for lines (multi to single)
self.layer2 = QgsVectorLayer("linestring?crs=epsg:25832", "result", "memory")
self.layer2PR = self.layer2.dataProvider()
fieldsL2 = self.outLayer.fields()
self.layer2PR.addAttributes(fieldsL2)
self.layer2.updateFields()
### mulitLine to singleLine(new layer)
self.multiToSingleLines()
### new layer for Straight lines (curved to straight)
fn3 = self.plugin_dir + "/data/straightLines.shp"
layer3 = QgsVectorLayer("linestring?crs=epsg:25832", "straightLines", "memory")
layer3PR = layer3.dataProvider()
layer3PR.addAttributes(self.layer2.fields())
layer3.updateFields()
for feat3 in self.layer2.getFeatures():
geom3 = feat3.geometry()
f = QgsFeature()
points = []
for pnt in geom3.asPolyline():
if points != []:
points.append(QgsPoint(pnt.x(),pnt.y()))
f.setGeometry(QgsGeometry.fromPolyline(points))
f.setAttributes(feat3.attributes())
layer3PR.addFeature(f)
points = []
points.append(QgsPoint(pnt.x(),pnt.y()))
QgsProject.instance().addMapLayer(layer3)
### loop through all points
for feat in self.dlg.selectPoints.currentLayer().getFeatures():
### select all lines with same attributs as point in given fields (PointAttribut, LineAttribut)
exp = self.dlg.LineAttribut.currentField()+" = '"+feat[self.dlg.PointAttribut.currentField()]+"'"
if self.dlg.add_1.text() == '-':
exp = exp + " AND " + self.dlg.LineAttribut_2.currentField()+" = '"+feat[self.dlg.PointAttribut_2.currentField()]+"'"
if self.dlg.add_2.text() == '-':
exp = exp + " AND " + self.dlg.LineAttribut_3.currentField()+" = '"+feat[self.dlg.PointAttribut_3.currentField()]+"'"
layer3.selectByExpression(exp)
#print("Anzahl selektierte Linien nach Attribut", int(layer3.selectedFeatureCount()))
### create buffer around actual point with given distance(DistanceSelect)
buffer = feat.geometry().buffer(self.dlg.DistanceSelect.value(),10)
poly = buffer.asPolygon()
outGeom = QgsFeature()
outGeom.setGeometry(QgsGeometry.fromPolygonXY(poly))
pr.addFeature(outGeom)
vl.updateExtents()
QgsProject.instance().addMapLayer(vl)
### subselect lines intersecting the buffer
parameters = { 'INPUT' : layer3, 'INTERSECT' : vl, 'METHOD' : 2, 'PREDICATE' : [0] }
processing.run('qgis:selectbylocation', parameters )
#print("Anzahl selektierte Linien nach Location", int(layer3.selectedFeatureCount()))
i=1
while (int(layer3.selectedFeatureCount()) > 1) & (i < self.dlg.DistanceSelect.value()):
with edit(vl):
listOfIds = [featID.id() for featID in vl.getFeatures()]
vl.deleteFeatures( listOfIds )
buffer = feat.geometry().buffer((self.dlg.DistanceSelect.value()-i),10)
poly = buffer.asPolygon()
outGeom = QgsFeature()
outGeom.setGeometry(QgsGeometry.fromPolygonXY(poly))
pr.addFeature(outGeom)
parameters = { 'INPUT' : layer3, 'INTERSECT' : vl, 'METHOD' : 2, 'PREDICATE' : [0] }
processing.run('qgis:selectbylocation', parameters )
##print("Anzahl selektierte Linien nach Location", int(layer3.selectedFeatureCount()))
if i < (self.dlg.DistanceSelect.value()-1):
i += 1
else:
i += 0.01
##print("Anzahl selektierte Linien nach Location", int(layer3.selectedFeatureCount()))
if (int(layer3.selectedFeatureCount()) > 0):
### get nearest point on line from actual point
## Inputs
line = layer3.selectedFeatures()[0].geometry().asPolyline()
point = feat.geometry().asPoint()
## Calculate Length of line
myLength = math.sqrt((line[0].x() - line[1].x())*(line[0].x() - line[1].x()) + (line[0].y() - line[1].y())*(line[0].y() - line[1].y()))
if (myLength == 0):
raise Exception('The points on input line must not be identical')
u = ((point.x() - line[1].x()) * (line[0].x() - line[1].x()) + (point.y() - line[1].y()) * (line[0].y() - line[1].y())) / (myLength*myLength)
# restrict to line boundary
if u > 1:
u = 1
elif u < 0:
u = 0
nearestPointOnLine = QgsPointXY(line[1].x() + u * (line[0].x() - line[1].x()), line[1].y() + u * (line[0].y() - line[1].y()))
##print('Nearest point "N" on line: ({}, {})'.format(nearestPointOnLine.x(), nearestPointOnLine.y()))
fN = QgsFeature()
fN.setGeometry(QgsGeometry.fromPointXY(nearestPointOnLine))
prN.addFeature(fN)
QgsProject.instance().addMapLayer(vlN)
### create buffer around nearest point for nearest line
i = 0
for featNP in vlN.getFeatures():
if i == 0:
bufferNP = featNP.geometry().buffer(0.001,10)
polyNP = bufferNP.asPolygon()
outGeomNP = QgsFeature()
outGeomNP.setGeometry(QgsGeometry.fromPolygonXY(polyNP))
prbufferNP.addFeature(outGeomNP)
vlbufferNP.updateExtents()
QgsProject.instance().addMapLayer(vlbufferNP)
i = 1
else:
print(" mehrere Nearest points erzeugt")
### cut lines on buffer for nearest line
processing.run("qgis:clip", {'INPUT':self.layer2, 'OVERLAY':vlbufferNP, 'OUTPUT': fn2})
vllinesNP = QgsVectorLayer(fn2, "tempBufferNPlines", "ogr")
prlinesNP = vllinesNP.dataProvider()
QgsProject.instance().addMapLayer(vllinesNP)
tempLine = -1
maximalLength = -1
for featLNP in vllinesNP.getFeatures():
if featLNP.geometry().length() > maximalLength:
maximalLength = featLNP.geometry().length()
tempLine = featLNP.attribute("spPlugID")
### splitte selektierte linie an punkt
self.layer2.selectByExpression("spPlugID = " + str(tempLine))
##print("Anzahl Linien am Nearest Point: ", int(self.layer2.selectedFeatureCount()))
parameters = { 'INPUT' : self.layer2, 'INTERSECT' : vlbufferNP, 'METHOD' : 2, 'PREDICATE' : [0] }
processing.run('qgis:selectbylocation', parameters )
##print("Anzahl Linien am Nearest Point: ", int(self.layer2.selectedFeatureCount()))
for lineFeat in self.layer2.getSelectedFeatures():
for pointFeat in vlN.getFeatures():
l = shapely.wkt.loads(lineFeat.geometry().asWkt())
p = shapely.wkt.loads(pointFeat.geometry().asWkt())
endBufferNP = pointFeat.geometry().buffer(0.000001,10)
poly = shapely.wkt.loads(endBufferNP.asWkt())
splitResult = shapely.ops.split(l, poly)
##print(splitResult)
i = 0
mergedLinePoints = []
firstLinePoints = []
for splittedLine in splitResult:
if i==0:
for x,y in splittedLine.coords:
firstLinePoints.append(QgsPoint(x,y))
finalGeom1 = QgsFeature()
finalGeom1.setGeometry(QgsGeometry.fromPolyline(firstLinePoints))
elif i != 0:
for x,y in splittedLine.coords:
mergedLinePoints.append(QgsPoint(x,y))
i += 1
break
finalGeom = QgsFeature()
finalGeom.setGeometry(QgsGeometry.fromPolyline(mergedLinePoints))
finalGeom1.setAttributes(lineFeat.attributes())
finalGeom.setAttributes(lineFeat.attributes())
if lineFeat.attribute(self.dlg.newAttributeName.text()) == NULL:
finalGeom1.setAttribute(lineFeat.fieldNameIndex(self.dlg.newAttributeName.text()), feat.attribute(self.dlg.attributToPoint.currentField()))
finalGeom.setAttribute(lineFeat.fieldNameIndex(self.dlg.newAttributeName.text()), feat.attribute(self.dlg.attributFromPoint.currentField()))
else:
if (feat.attribute(self.dlg.attributToPoint.currentField()) != NULL):
finalGeom1.setAttribute(lineFeat.fieldNameIndex(self.dlg.newAttributeName.text()), feat.attribute(self.dlg.attributToPoint.currentField()))
if (feat.attribute(self.dlg.attributFromPoint.currentField()) != NULL):
finalGeom.setAttribute(lineFeat.fieldNameIndex(self.dlg.newAttributeName.text()), feat.attribute(self.dlg.attributFromPoint.currentField()))
self.layer2PR.deleteFeatures([lineFeat.id()])
self.layer2PR.addFeature(finalGeom)
self.layer2PR.addFeature(finalGeom1)
break
listOfIds = [delFeat.id() for delFeat in vlbufferNP.getFeatures()]
prbufferNP.deleteFeatures( listOfIds )
listOfIds = [delFeat.id() for delFeat in vlN.getFeatures()]
prN.deleteFeatures( listOfIds )
listOfIds = [delFeat.id() for delFeat in vllinesNP.getFeatures()]
prlinesNP.deleteFeatures( listOfIds )
else:
print("Es wurde folgender Punkt nicht verwendet, da er zu weit weg liegt von der Linie:")
print(feat.attributes())
listOfIds = [delFeat.id() for delFeat in vl.getFeatures()]
pr.deleteFeatures( listOfIds )
self.layer2.selectByExpression("1=0")
layer3.selectByExpression("1=0")
### remove used layers
if len(QgsProject.instance().mapLayersByName('tempBufferNPlines')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('tempBufferNPlines')[0].id())
QgsVectorFileWriter.deleteShapeFile(self.plugin_dir + "/data/tempBufferNPlines.shp")
QgsVectorFileWriter.deleteShapeFile(self.plugin_dir + "/data/tempBufferNPlines.dbf")
QgsVectorFileWriter.deleteShapeFile(self.plugin_dir + "/data/tempBufferNPlines.prj")
QgsVectorFileWriter.deleteShapeFile(self.plugin_dir + "/data/tempBufferNPlines.shx")
if len(QgsProject.instance().mapLayersByName('tempBuffer')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('tempBuffer')[0].id())
if len(QgsProject.instance().mapLayersByName('nearestPoint')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('nearestPoint')[0].id())
if len(QgsProject.instance().mapLayersByName('mergedLines')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('mergedLines')[0].id())
if len(QgsProject.instance().mapLayersByName('tempMergeLines')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('tempMergeLines')[0].id())
if len(QgsProject.instance().mapLayersByName('tempBufferNP')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('tempBufferNP')[0].id())
if len(QgsProject.instance().mapLayersByName('tempBufferNPlines')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('tempBufferNPlines')[0].id())
if len(QgsProject.instance().mapLayersByName('straightLines')) != 0:
QgsProject.instance().removeMapLayer(QgsProject.instance().mapLayersByName('straightLines')[0].id())
print("--------------FINISHED Splitting Lines--------------")
pass