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109 lines
5.1 KiB
Python
Executable File
109 lines
5.1 KiB
Python
Executable File
# -*- coding: utf-8 -*-
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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import ftools_utils
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from qgis.core import *
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from ui_frmPointsInPolygon import Ui_Dialog
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class Dialog(QDialog, Ui_Dialog):
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def __init__(self, iface):
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QDialog.__init__(self)
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self.iface = iface
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# Set up the user interface from Designer.
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self.setupUi(self)
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self.buttonOk = self.buttonBox_2.button( QDialogButtonBox.Ok )
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# populate layer list
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self.progressBar.setValue(0)
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mapCanvas = self.iface.mapCanvas()
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layers = ftools_utils.getLayerNames([QGis.Point, QGis.Line, QGis.Polygon])
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self.inPolygon.addItems(layers)
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self.inPoint.addItems(layers)
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self.updateUI()
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self.connect(self.inPoint, SIGNAL("currentIndexChanged(QString)"), self.updateCheck)
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self.cmbModify.addItems([self.tr("creating new selection"), self.tr("adding to current selection"), self.tr("removing from current selection")])
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def updateCheck(self, text):
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vlayer = ftools_utils.getVectorLayerByName(text)
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if vlayer.selectedFeatureCount() > 0:
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self.chkSelected.setChecked(True)
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else:
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self.chkSelected.setChecked(False)
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def updateUI(self):
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self.label_5.setVisible(False)
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self.lnField.setVisible(False)
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self.outShape.setVisible(False)
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self.toolOut.setVisible(False)
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self.label_2.setVisible(False)
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self.setWindowTitle(self.tr("Select by location"))
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self.label_3.setText(self.tr("Select features in:"))
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self.label_4.setText(self.tr("that intersect features in:"))
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self.label_mod = QLabel(self)
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self.label_mod.setObjectName("label_mod")
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self.label_mod.setText(self.tr("Modify current selection by:"))
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self.cmbModify = QComboBox(self)
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self.cmbModify.setObjectName("cmbModify")
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self.chkSelected = QCheckBox(self.tr("Use selected features only"), self)
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self.chkSelected.setObjectName("chkSelected")
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self.gridLayout.addWidget(self.chkSelected,2,0,1,1)
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self.gridLayout.addWidget(self.label_mod,3,0,1,1)
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self.gridLayout.addWidget(self.cmbModify,4,0,1,1)
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self.resize(381, 100)
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def accept(self):
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self.buttonOk.setEnabled( False )
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if self.inPolygon.currentText() == "":
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QMessageBox.information(self, self.tr("Select by location"), self.tr( "Please specify input layer"))
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elif self.inPoint.currentText() == "":
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QMessageBox.information(self, self.tr("Select by location"), self.tr("Please specify select layer"))
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else:
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inPoly = self.inPolygon.currentText()
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inPts = self.inPoint.currentText()
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self.compute(inPoly, inPts, self.cmbModify.currentText(), self.chkSelected.isChecked())
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self.progressBar.setValue(0)
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self.buttonOk.setEnabled( True )
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def compute(self, inPoly, inPts, modify, selection):
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inputLayer = ftools_utils.getVectorLayerByName(inPoly)
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selectLayer = ftools_utils.getVectorLayerByName(inPts)
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inputProvider = inputLayer.dataProvider()
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allAttrs = inputProvider.attributeIndexes()
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inputProvider.select(allAttrs, QgsRectangle())
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selectProvider = selectLayer.dataProvider()
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allAttrs = selectProvider.attributeIndexes()
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selectProvider.select(allAttrs, QgsRectangle())
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feat = QgsFeature()
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infeat = QgsFeature()
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geom = QgsGeometry()
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selectedSet = []
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index = ftools_utils.createIndex(inputProvider)
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if selection:
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features = selectLayer.selectedFeatures()
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self.progressBar.setMaximum(len(features))
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for feat in features:
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geom = QgsGeometry(feat.geometry())
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intersects = index.intersects(geom.boundingBox())
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for id in intersects:
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inputProvider.featureAtId(int(id), infeat, True)
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tmpGeom = QgsGeometry(infeat.geometry())
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if geom.intersects(tmpGeom):
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selectedSet.append(infeat.id())
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self.progressBar.setValue(self.progressBar.value()+1)
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else:
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self.progressBar.setMaximum(selectProvider.featureCount())
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while selectProvider.nextFeature(feat):
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geom = QgsGeometry(feat.geometry())
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intersects = index.intersects(geom.boundingBox())
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for id in intersects:
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inputProvider.featureAtId(int(id), infeat, True)
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tmpGeom = QgsGeometry( infeat.geometry() )
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if geom.intersects(tmpGeom):
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selectedSet.append(infeat.id())
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self.progressBar.setValue(self.progressBar.value()+1)
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if modify == self.tr("adding to current selection"):
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selectedSet = list(set(inputLayer.selectedFeaturesIds()).union(selectedSet))
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elif modify == self.tr("removing from current selection"):
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selectedSet = list(set(inputLayer.selectedFeaturesIds()).difference(selectedSet))
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inputLayer.setSelectedFeatures(selectedSet)
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