def _validateGeometry(self): geometryType = self.geometryType() if (geometryType == QGis.Point or geometryType == QGis.UnknownGeometry or geometryType == QGis.NoGeometry or len(self._mapPointList) < 2): return settings = QSettings() if (settings.value('/qgis/digitizing/validate_geometries', 1) == 0): return self._deleteGeometryValidation() geometry = None # QgsGeometry() if (geometryType == QGis.Line): geometry = QgsGeometry.fromPolyline(self._mapPointList) elif (geometryType == QGis.Polygon): if (len(self._mapPointList) < 3): return closed = list(self._mapPointList) closed.append(self._mapPointList[0]) geometry = QgsGeometry.fromPolygon([closed]) if (geometry is None): return self._validator = QgsGeometryValidator(geometry) self._validator.errorFound.connect(self._addGeometryError) self._validator.finished.connect(self.validationFinished) self._validator.start() self._iface.mainWindow().statusBar().showMessage( self.tr('Geometry validation started.'))
def test_ring_intersections(self): # no intersections g = QgsGeometry.fromWkt( "Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 5 1, 1 9, 1 1), (6 9, 2 9, 6 1, 6 9))" ) validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) # two interior rings intersecting g = QgsGeometry.fromWkt( "Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 5 1, 1 9, 1 1), (2 2, 5 2, 2 9, 2 2))" ) validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 2) self.assertEqual(spy[0][0].where(), QgsPointXY(4.5, 2)) self.assertEqual( spy[0][0].what(), 'segment 1 of ring 1 of polygon 0 intersects segment 0 of ring 2 of polygon 0 at 4.5, 2' ) self.assertEqual(spy[1][0].where(), QgsPointXY(2, 7)) self.assertEqual( spy[1][0].what(), 'segment 1 of ring 1 of polygon 0 intersects segment 2 of ring 2 of polygon 0 at 2, 7' )
def test_linestring_duplicate_nodes(self): g = QgsGeometry.fromWkt("LineString (1 1, 1 1, 1 1, 1 2, 1 3, 1 3, 1 3, 1 4, 1 5, 1 6, 1 6)") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 3) self.assertEqual(spy[0][0].where(), QgsPointXY(1, 6)) self.assertEqual(spy[0][0].what(), 'line 1 contains 2 duplicate node(s) starting at vertex 10') self.assertEqual(spy[1][0].where(), QgsPointXY(1, 3)) self.assertEqual(spy[1][0].what(), 'line 1 contains 3 duplicate node(s) starting at vertex 5') self.assertEqual(spy[2][0].where(), QgsPointXY(1, 1)) self.assertEqual(spy[2][0].what(), 'line 1 contains 3 duplicate node(s) starting at vertex 1')
def _validateGeometry(self): geometryType = self.geometryType() if (geometryType == QGis.Point or geometryType == QGis.UnknownGeometry or geometryType == QGis.NoGeometry or len(self._mapPointList) < 2): return settings = QSettings() if (settings.value('/qgis/digitizing/validate_geometries', 1) == 0): return self._deleteGeometryValidation() geometry = None # QgsGeometry() if (geometryType == QGis.Line): geometry = QgsGeometry.fromPolyline(self._mapPointList) elif (geometryType == QGis.Polygon): if (len(self._mapPointList) < 3): return closed = list(self._mapPointList) closed.append(self._mapPointList[0]) geometry = QgsGeometry.fromPolygon([closed]) if (geometry is None): return self._validator = QgsGeometryValidator(geometry) self._validator.errorFound.connect(self._addGeometryError) self._validator.finished.connect(self.validationFinished) self._validator.start() self._iface.mainWindow().statusBar().showMessage(self.tr('Geometry validation started.'))
def test_multi_part_curve(self): # A circle inside another one g = QgsGeometry.fromWkt("MultiSurface (CurvePolygon (CircularString (0 5, 5 0, 0 -5, -5 0, 0 5)),CurvePolygon (CircularString (100 1, 100 0, 100 -1, 99 0, 100 1)))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) # converted as a straight polygon g.convertToStraightSegment() validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0)
def testIssue15660(self): """ Test crash when validating geometry (#15660) """ g = QgsGeometry.fromWkt( "Polygon ((0.44256348235389709 -47.87645625696347906, -2.88231630340906797 -47.90003919913998232," "-2.88589842578005751 -48.91215450743293047, -2.8858984257800584 -48.91215450743293047," "-2.88589842578005751 -48.91215450743292337, -2.88589842632776516 -48.9121545074024624," "-3.24858148608664266 -48.89198543875494352, -3.27689849271356159 -49.40119850743292318," "-4.37689842578006072 -49.40119850743292318, -4.3768984257800625 -49.40119850743293739," "-6.11689842578005738 -49.40119850743293739, -6.11689842578006093 -49.40119850743292318," "-7.03689842578006086 -49.40119850743292318, -7.02239489567359776 -48.93302358132471852," "-7.02177188091450688 -48.91291272055079276, -7.02177188393206286 -48.91291272045731375," "-7.02141642578006309 -48.9014385074329212, -7.7002102410998674 -48.88041051649613422," "-7.70077301577442341 -48.89187793078160382, -7.70077301577442341 -48.89187793078160382," "-7.70233865095334291 -48.92378019651650334, -7.72576842578006051 -49.40119850743292318," "-9.26576842578005966 -49.40119850743292318, -9.26576842578006321 -49.40119850743293739," "-13.28076842578006023 -49.40119850743293739, -13.04700849136197149 -44.82717853953759857," "-12.22739168108193297 -44.85224022031006541, -12.22501286465108805 -44.774446133668377," "-12.22288921611744783 -44.774511069530881, -12.2155540445085915 -44.53462318893357264," "-13.0310217329353506 -44.50968822589503304, -12.87640859053235687 -41.29089836691012749," "-7.83390711693117936 -41.74840291007100745, -7.88211379129075596 -42.99075321817508666," "-7.43245210877673657 -43.00820115628285123, -7.50410812906098013 -44.67868742523263847," "-7.52086717830689011 -44.67817497540850979, -7.52820234991574644 -44.91806285600581816," "-7.51439432253991058 -44.91848507095944854, -7.57421591980290287 -46.3130804785479242," "-8.32385639731993621 -46.28985691678211367, -8.44985043007881842 -48.85718773355701217," "-6.26478736265246283 -48.92487774800262912, -6.18500945357052245 -46.35611749220839073," "-6.94163842159974198 -46.33267751510010157, -6.82382190915497944 -40.77447960826383166," "-5.48772831582523146 -40.77837853452808758, -5.48973219643841759 -39.92687558952010107," "-2.75658441771447116 -40.04490036239724304, -3.1241861109063862 -46.6551270968877958," "-2.78977790434136885 -46.6737244011090695, -2.78977790434136796 -46.6737244011090695," "-2.71083842578005996 -44.83541850743291945, -2.71083842578005729 -44.83541850743291945," "-0.86779302740823816 -44.89143693883772812, -0.86745855610774569 -44.87743669555854353," "0.29843811058281489 -44.90401226269042922, 0.20437651721061911 -46.69301920907949466," "0.50389019278376956 -46.71008040893148916, 0.44256348235389709 -47.87645625696347906))" ) self.assertTrue(g) # make sure validating this geometry doesn't crash QGIS QgsGeometryValidator.validateGeometry(g)
def testIssue15660(self): """ Test crash when validating geometry (#15660) """ g = QgsGeometry.fromWkt( "Polygon ((0.44256348235389709 -47.87645625696347906, -2.88231630340906797 -47.90003919913998232," "-2.88589842578005751 -48.91215450743293047, -2.8858984257800584 -48.91215450743293047," "-2.88589842578005751 -48.91215450743292337, -2.88589842632776516 -48.9121545074024624," "-3.24858148608664266 -48.89198543875494352, -3.27689849271356159 -49.40119850743292318," "-4.37689842578006072 -49.40119850743292318, -4.3768984257800625 -49.40119850743293739," "-6.11689842578005738 -49.40119850743293739, -6.11689842578006093 -49.40119850743292318," "-7.03689842578006086 -49.40119850743292318, -7.02239489567359776 -48.93302358132471852," "-7.02177188091450688 -48.91291272055079276, -7.02177188393206286 -48.91291272045731375," "-7.02141642578006309 -48.9014385074329212, -7.7002102410998674 -48.88041051649613422," "-7.70077301577442341 -48.89187793078160382, -7.70077301577442341 -48.89187793078160382," "-7.70233865095334291 -48.92378019651650334, -7.72576842578006051 -49.40119850743292318," "-9.26576842578005966 -49.40119850743292318, -9.26576842578006321 -49.40119850743293739," "-13.28076842578006023 -49.40119850743293739, -13.04700849136197149 -44.82717853953759857," "-12.22739168108193297 -44.85224022031006541, -12.22501286465108805 -44.774446133668377," "-12.22288921611744783 -44.774511069530881, -12.2155540445085915 -44.53462318893357264," "-13.0310217329353506 -44.50968822589503304, -12.87640859053235687 -41.29089836691012749," "-7.83390711693117936 -41.74840291007100745, -7.88211379129075596 -42.99075321817508666," "-7.43245210877673657 -43.00820115628285123, -7.50410812906098013 -44.67868742523263847," "-7.52086717830689011 -44.67817497540850979, -7.52820234991574644 -44.91806285600581816," "-7.51439432253991058 -44.91848507095944854, -7.57421591980290287 -46.3130804785479242," "-8.32385639731993621 -46.28985691678211367, -8.44985043007881842 -48.85718773355701217," "-6.26478736265246283 -48.92487774800262912, -6.18500945357052245 -46.35611749220839073," "-6.94163842159974198 -46.33267751510010157, -6.82382190915497944 -40.77447960826383166," "-5.48772831582523146 -40.77837853452808758, -5.48973219643841759 -39.92687558952010107," "-2.75658441771447116 -40.04490036239724304, -3.1241861109063862 -46.6551270968877958," "-2.78977790434136885 -46.6737244011090695, -2.78977790434136796 -46.6737244011090695," "-2.71083842578005996 -44.83541850743291945, -2.71083842578005729 -44.83541850743291945," "-0.86779302740823816 -44.89143693883772812, -0.86745855610774569 -44.87743669555854353," "0.29843811058281489 -44.90401226269042922, 0.20437651721061911 -46.69301920907949466," "0.50389019278376956 -46.71008040893148916, 0.44256348235389709 -47.87645625696347906))" ) self.assertTrue(g) # make sure validating this geometry doesn't crash QGIS QgsGeometryValidator.validateGeometry(g)
def test_multi_part_curve_nested_shell(self): # A circle inside another one g = QgsGeometry.fromWkt("MultiSurface (CurvePolygon (CircularString (0 5, 5 0, 0 -5, -5 0, 0 5)),CurvePolygon (CircularString (0 1, 1 0, 0 -1, -1 0, 0 1)))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'Polygon 1 lies inside polygon 0') # converted as a straight polygon g.convertToStraightSegment() validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'Polygon 1 lies inside polygon 0')
def test_ring_closed(self): # valid ring g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) # not closed g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 1 1))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY(0, 0)) self.assertEqual(spy[0][0].what(), 'ring 0 not closed') g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0),(1 1, 2 1, 2 2, 1.1 1))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY(1, 1)) self.assertEqual(spy[0][0].what(), 'ring 1 not closed') g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 2 1, 2 2, 1 1),(3 3, 3 4, 4 4, 3.1 3))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY(3, 3)) self.assertEqual(spy[0][0].what(), 'ring 2 not closed') # not closed but 2d closed g = QgsGeometry.fromWkt("POLYGONZ((1 1 0, 1 2 1, 2 2 2, 2 1 3, 1 1 4))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY(1, 1)) self.assertEqual(spy[0][0].what(), 'ring 0 not closed, Z mismatch: 0 vs 4')
def test_ring_vertex_count(self): # valid ring g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) # not enough vertices g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points') g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 0 0))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points') g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points') g = QgsGeometry.fromWkt("Polygon ((0 0))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'ring 0 with less than four points') g = QgsGeometry.fromWkt("Polygon (())") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0),(1 1, 2 1, 2 2))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'ring 1 with less than four points') g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 0),(1 1, 2 1, 2 2, 1 1))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) g = QgsGeometry.fromWkt("Polygon ((0 0, 10 0, 10 10, 0 10, 0 0),(1 1, 2 1, 2 2, 1 1),(3 3, 3 4, 4 4))") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'ring 2 with less than four points')
def test_line_vertices(self): # valid line g = QgsGeometry.fromWkt("LineString (0 0, 10 0)") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 0) # not enough vertices g = QgsGeometry.fromWkt("LineString (1 0)") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'line 0 with less than two points') g = QgsGeometry.fromWkt("LineString ()") validator = QgsGeometryValidator(g) spy = QSignalSpy(validator.errorFound) validator.run() self.assertEqual(len(spy), 1) self.assertEqual(spy[0][0].where(), QgsPointXY()) self.assertEqual(spy[0][0].what(), 'line 0 with less than two points')
class MapToolCapture(MapToolInteractive): """Tool to capture and show mouse clicks as geometry using map points.""" canvasClicked = pyqtSignal(QgsPointV2, Qt.MouseButton) def __init__(self, iface, geometryType=QGis.UnknownGeometry): super(MapToolCapture, self).__init__(iface.mapCanvas()) self._iface = iface self._useCurrentLayerGeometry = False self._geometryType = geometryType self._mapPointList = [] # QList<QgsPointV2> self._rubberBand = None # QgsRubberBand() self._moveRubberBand = None # QgsRubberBand() self._tip = '' self._validator = None # QgsGeometryValidator() self._geometryErrors = [] # QList<QgsGeometry.Error> self._geometryErrorMarkers = [] # QList<QgsVertexMarker> if (geometryType == QGis.UnknownGeometry): self._useCurrentLayerGeometry = True self.setCursor(CapturePointCursor) def __del__(self): self.deactivate() super(MapToolCapture, self).__del__() def activate(self): super(MapToolCapture, self).activate() geometryType = self.geometryType() self._rubberBand = self._createRubberBand(geometryType) self._moveRubberBand = self._createRubberBand(geometryType, True) if (self._useCurrentLayerGeometry is True): self._iface.currentLayerChanged.connect(self._currentLayerChanged) def deactivate(self): self.resetCapturing() if (self._rubberBand is not None): self.canvas().scene().removeItem(self._rubberBand) self._rubberBand = None if (self._moveRubberBand is not None): self.canvas().scene().removeItem(self._moveRubberBand) self._moveRubberBand = None if (self._useCurrentLayerGeometry is True): self._iface.currentLayerChanged.disconnect( self._currentLayerChanged) super(MapToolCapture, self).deactivate() def geometryType(self): if (self._useCurrentLayerGeometry and self.canvas().currentLayer().type() == QgsMapLayer.VectorLayer): return self.canvas().currentLayer().geometryType() else: return self._geometryType def _currentLayerChanged(self, layer): if (not self._useCurrentLayerGeometry): return # TODO Update rubber bands if (self._rubberBand is not None): self._rubberBand.reset(self.geometryType()) for point in self._mapPointList[:-1]: self._rubberBand.addPoint(point, False) self._updateMoveRubberBand(self._mapPointList[-1]) self._validateGeometry() self.canvas().refresh() def canvasMoveEvent(self, e): super(MapToolCapture, self).canvasMoveEvent(e) if e.isAccepted(): return if (self._moveRubberBand is not None): # Capture mode mapPoint, mapPointV2, snapped = self._snapCursorPoint(e.pos()) self._moveRubberBand.movePoint(mapPoint) def canvasReleaseEvent(self, e): super(MapToolCapture, self).canvasReleaseEvent(e) if e.isAccepted(): return mapPoint, mapPointV2, snapped = self._snapCursorPoint(e.pos()) if (e.button() == Qt.LeftButton): # Capture mode self._addVertex(mapPoint, mapPointV2) # Emit mode self.canvasClicked.emit(mapPointV2, e.button()) def keyPressEvent(self, e): if (e.key() == Qt.Key_Escape): self.resetCapturing() e.accept() elif (e.key() == Qt.Key_Backspace or e.key() == Qt.Key_Delete): self._undo() e.accept() else: super(MapToolCapture, self).keyPressEvent(e) def _createRubberBand(self, geometryType, moveBand=False): settings = QSettings() rb = QgsRubberBand(self.canvas(), geometryType) rb.setWidth(int(settings.value('/qgis/digitizing/line_width', 1))) color = QColor( int(settings.value('/qgis/digitizing/line_color_red', 255)), int(settings.value('/qgis/digitizing/line_color_green', 0)), int(settings.value('/qgis/digitizing/line_color_blue', 0))) myAlpha = int(settings.value('/qgis/digitizing/line_color_alpha', 200)) / 255.0 if (moveBand): myAlpha = myAlpha * float( settings.value('/qgis/digitizing/line_color_alpha_scale', 0.75)) rb.setLineStyle(Qt.DotLine) if (geometryType == QGis.Polygon): color.setAlphaF(myAlpha) color.setAlphaF(myAlpha) rb.setColor(color) rb.show() return rb def _addVertex(self, mapPoint, mapPointV2): self._mapPointList.append(mapPoint) self._rubberBand.addPoint(mapPoint) self._updateMoveRubberBand(mapPoint) self._validateGeometry() return def _updateMoveRubberBand(self, mapPoint): if (self._moveRubberBand is None): return geometryType = self.geometryType() self._moveRubberBand.reset(geometryType) if (geometryType == QGis.Polygon): self._moveRubberBand.addPoint(self._rubberBand.getPoint(0, 0), False) self._moveRubberBand.movePoint(mapPoint, False) self._moveRubberBand.addPoint(mapPoint) def _undo(self): if (self._rubberBand is not None): rubberBandSize = self._rubberBand.numberOfVertices() moveRubberBandSize = self._moveRubberBand.numberOfVertices() if (rubberBandSize < 1 or len(self._mapPointList) < 1): return self._rubberBand.removePoint(-1) if (rubberBandSize > 1): if (moveRubberBandSize > 1): point = self._rubberBand.getPoint(0, rubberBandSize - 2) self._moveRubberBand.movePoint(moveRubberBandSize - 2, point) else: self._moveRubberBand.reset(self.geometryType()) self._mapPointList.pop() self._validateGeometry() def resetCapturing(self): if (self._rubberBand is not None): self._rubberBand.reset(self.geometryType()) if (self._moveRubberBand is not None): self._moveRubberBand.reset(self.geometryType()) self._deleteGeometryValidation() del self._mapPointList[:] self.canvas().refresh() def _deleteGeometryValidation(self): if (self._validator is not None): self._validator.errorFound.disconnect(self._addGeometryError) self._validator.finished.disconnect(self.validationFinished) self._validator.deleteLater() self._validator = None for errorMarker in self._geometryErrorMarkers: self.canvas().scene().removeItem(errorMarker) del self._geometryErrorMarkers[:] self._geometryErrors[:] self._tip = '' def _validateGeometry(self): geometryType = self.geometryType() if (geometryType == QGis.Point or geometryType == QGis.UnknownGeometry or geometryType == QGis.NoGeometry or len(self._mapPointList) < 2): return settings = QSettings() if (settings.value('/qgis/digitizing/validate_geometries', 1) == 0): return self._deleteGeometryValidation() geometry = None # QgsGeometry() if (geometryType == QGis.Line): geometry = QgsGeometry.fromPolyline(self._mapPointList) elif (geometryType == QGis.Polygon): if (len(self._mapPointList) < 3): return closed = list(self._mapPointList) closed.append(self._mapPointList[0]) geometry = QgsGeometry.fromPolygon([closed]) if (geometry is None): return self._validator = QgsGeometryValidator(geometry) self._validator.errorFound.connect(self._addGeometryError) self._validator.finished.connect(self.validationFinished) self._validator.start() self._iface.mainWindow().statusBar().showMessage( self.tr('Geometry validation started.')) def _addGeometryError(self, error): self._geometryErrors.append(error) if (self._tip != ''): self._tip += '\n' self._tip += error.what() if (error.hasWhere()): marker = QgsVertexMarker(self.canvas()) marker.setCenter(error.where()) marker.setIconType(QgsVertexMarker.ICON_X) marker.setPenWidth(2) marker.setToolTip(error.what()) marker.setColor(Qt.green) marker.setZValue(marker.zValue() + 1) self._geometryErrorMarkers.append(marker) self._iface.mainWindow().statusBar().showMessage(error.what()) if (self._tip != ''): self._iface.mainWindow().statusBar().setToolTip(self._tip) def validationFinished(self): self._iface.mainWindow().statusBar().showMessage( self.tr('Geometry validation finished.'))
class MapToolCapture(MapToolInteractive): """Tool to capture and show mouse clicks as geometry using map points.""" canvasClicked = pyqtSignal(QgsPointV2, Qt.MouseButton) def __init__(self, iface, geometryType=QGis.UnknownGeometry): super(MapToolCapture, self).__init__(iface.mapCanvas()) self._iface = iface self._useCurrentLayerGeometry = False self._geometryType = geometryType self._mapPointList = [] # QList<QgsPointV2> self._rubberBand = None # QgsRubberBand() self._moveRubberBand = None # QgsRubberBand() self._tip = '' self._validator = None # QgsGeometryValidator() self._geometryErrors = [] # QList<QgsGeometry.Error> self._geometryErrorMarkers = [] # QList<QgsVertexMarker> if (geometryType == QGis.UnknownGeometry): self._useCurrentLayerGeometry = True self.setCursor(CapturePointCursor) def __del__(self): self.deactivate() super(MapToolCapture, self).__del__() def activate(self): super(MapToolCapture, self).activate() geometryType = self.geometryType() self._rubberBand = self._createRubberBand(geometryType) self._moveRubberBand = self._createRubberBand(geometryType, True) if (self._useCurrentLayerGeometry is True): self._iface.currentLayerChanged.connect(self._currentLayerChanged) def deactivate(self): self.resetCapturing() if (self._rubberBand is not None): self.canvas().scene().removeItem(self._rubberBand) self._rubberBand = None if (self._moveRubberBand is not None): self.canvas().scene().removeItem(self._moveRubberBand) self._moveRubberBand = None if (self._useCurrentLayerGeometry is True): self._iface.currentLayerChanged.disconnect(self._currentLayerChanged) super(MapToolCapture, self).deactivate() def geometryType(self): if (self._useCurrentLayerGeometry and self.canvas().currentLayer().type() == QgsMapLayer.VectorLayer): return self.canvas().currentLayer().geometryType() else: return self._geometryType def _currentLayerChanged(self, layer): if (not self._useCurrentLayerGeometry): return # TODO Update rubber bands if (self._rubberBand is not None): self._rubberBand.reset(self.geometryType()) for point in self._mapPointList[:-1]: self._rubberBand.addPoint(point, False) self._updateMoveRubberBand(self._mapPointList[-1]) self._validateGeometry() self.canvas().refresh() def canvasMoveEvent(self, e): super(MapToolCapture, self).canvasMoveEvent(e) if e.isAccepted(): return if (self._moveRubberBand is not None): # Capture mode mapPoint, mapPointV2, snapped = self._snapCursorPoint(e.pos()) self._moveRubberBand.movePoint(mapPoint) def canvasReleaseEvent(self, e): super(MapToolCapture, self).canvasReleaseEvent(e) if e.isAccepted(): return mapPoint, mapPointV2, snapped = self._snapCursorPoint(e.pos()) if (e.button() == Qt.LeftButton): # Capture mode self._addVertex(mapPoint, mapPointV2) # Emit mode self.canvasClicked.emit(mapPointV2, e.button()) def keyPressEvent(self, e): if (e.key() == Qt.Key_Escape): self.resetCapturing() e.accept() elif (e.key() == Qt.Key_Backspace or e.key() == Qt.Key_Delete): self._undo() e.accept() else: super(MapToolCapture, self).keyPressEvent(e) def _createRubberBand(self, geometryType, moveBand=False): settings = QSettings() rb = QgsRubberBand(self.canvas(), geometryType) rb.setWidth(int(settings.value('/qgis/digitizing/line_width', 1))) color = QColor(int(settings.value('/qgis/digitizing/line_color_red', 255)), int(settings.value('/qgis/digitizing/line_color_green', 0)), int(settings.value('/qgis/digitizing/line_color_blue', 0))) myAlpha = int(settings.value('/qgis/digitizing/line_color_alpha', 200)) / 255.0 if (moveBand): myAlpha = myAlpha * float(settings.value('/qgis/digitizing/line_color_alpha_scale', 0.75)) rb.setLineStyle(Qt.DotLine) if (geometryType == QGis.Polygon): color.setAlphaF(myAlpha) color.setAlphaF(myAlpha) rb.setColor(color) rb.show() return rb def _addVertex(self, mapPoint, mapPointV2): self._mapPointList.append(mapPoint) self._rubberBand.addPoint(mapPoint) self._updateMoveRubberBand(mapPoint) self._validateGeometry() return def _updateMoveRubberBand(self, mapPoint): if (self._moveRubberBand is None): return geometryType = self.geometryType() self._moveRubberBand.reset(geometryType) if (geometryType == QGis.Polygon): self._moveRubberBand.addPoint(self._rubberBand.getPoint(0, 0), False) self._moveRubberBand.movePoint(mapPoint, False) self._moveRubberBand.addPoint(mapPoint) def _undo(self): if (self._rubberBand is not None): rubberBandSize = self._rubberBand.numberOfVertices() moveRubberBandSize = self._moveRubberBand.numberOfVertices() if (rubberBandSize < 1 or len(self._mapPointList) < 1): return self._rubberBand.removePoint(-1) if (rubberBandSize > 1): if (moveRubberBandSize > 1): point = self._rubberBand.getPoint(0, rubberBandSize - 2) self._moveRubberBand.movePoint(moveRubberBandSize - 2, point) else: self._moveRubberBand.reset(self.geometryType()) self._mapPointList.pop() self._validateGeometry() def resetCapturing(self): if (self._rubberBand is not None): self._rubberBand.reset(self.geometryType()) if (self._moveRubberBand is not None): self._moveRubberBand.reset(self.geometryType()) self._deleteGeometryValidation() del self._mapPointList[:] self.canvas().refresh() def _deleteGeometryValidation(self): if (self._validator is not None): self._validator.errorFound.disconnect(self._addGeometryError) self._validator.finished.disconnect(self.validationFinished) self._validator.deleteLater() self._validator = None for errorMarker in self._geometryErrorMarkers: self.canvas().scene().removeItem(errorMarker) del self._geometryErrorMarkers[:] self._geometryErrors[:] self._tip = '' def _validateGeometry(self): geometryType = self.geometryType() if (geometryType == QGis.Point or geometryType == QGis.UnknownGeometry or geometryType == QGis.NoGeometry or len(self._mapPointList) < 2): return settings = QSettings() if (settings.value('/qgis/digitizing/validate_geometries', 1) == 0): return self._deleteGeometryValidation() geometry = None # QgsGeometry() if (geometryType == QGis.Line): geometry = QgsGeometry.fromPolyline(self._mapPointList) elif (geometryType == QGis.Polygon): if (len(self._mapPointList) < 3): return closed = list(self._mapPointList) closed.append(self._mapPointList[0]) geometry = QgsGeometry.fromPolygon([closed]) if (geometry is None): return self._validator = QgsGeometryValidator(geometry) self._validator.errorFound.connect(self._addGeometryError) self._validator.finished.connect(self.validationFinished) self._validator.start() self._iface.mainWindow().statusBar().showMessage(self.tr('Geometry validation started.')) def _addGeometryError(self, error): self._geometryErrors.append(error) if (self._tip != ''): self._tip += '\n' self._tip += error.what() if (error.hasWhere()): marker = QgsVertexMarker(self.canvas()) marker.setCenter(error.where()) marker.setIconType(QgsVertexMarker.ICON_X) marker.setPenWidth(2) marker.setToolTip(error.what()) marker.setColor(Qt.green) marker.setZValue(marker.zValue() + 1) self._geometryErrorMarkers.append(marker) self._iface.mainWindow().statusBar().showMessage(error.what()) if (self._tip != ''): self._iface.mainWindow().statusBar().setToolTip(self._tip) def validationFinished(self): self._iface.mainWindow().statusBar().showMessage(self.tr('Geometry validation finished.'))