def testEquals(self): myPointA = QgsGeometry.fromPoint(QgsPoint(1, 1)) myPointB = QgsGeometry.fromPoint(QgsPoint(1, 1)) equalsGeom = QgsGeometry.equals(myPointA, myPointB) myMessage = ('Expected:\n%s\nGot:\n%s\n' % ("True", equalsGeom)) assert equalsGeom == True, myMessage
def processAlgorithm(self, progress): filename = self.getParameterValue(self.INPUT) layer = dataobjects.getObjectFromUri(filename) filename = self.getParameterValue(self.INTERSECT) selectLayer = dataobjects.getObjectFromUri(filename) predicates = self.getParameterValue(self.PREDICATE) index = vector.spatialindex(layer) output = self.getOutputFromName(self.OUTPUT) writer = output.getVectorWriter(layer.pendingFields(), layer.dataProvider().geometryType(), layer.crs()) if 'disjoint' in predicates: disjoinSet = [] for feat in vector.features(layer): disjoinSet.append(feat.id()) geom = QgsGeometry() selectedSet = [] current = 0 features = vector.features(selectLayer) featureCount = len(features) total = 100.0 / float(len(features)) for current, f in enumerate(features): geom = QgsGeometry(f.geometry()) intersects = index.intersects(geom.boundingBox()) for i in intersects: request = QgsFeatureRequest().setFilterFid(i) feat = layer.getFeatures(request).next() tmpGeom = QgsGeometry(feat.geometry()) res = False for predicate in predicates: if predicate == 'disjoint': if tmpGeom.intersects(geom): try: disjoinSet.remove(feat.id()) except: pass # already removed else: if predicate == 'intersects': res = tmpGeom.intersects(geom) elif predicate == 'contains': res = tmpGeom.contains(geom) elif predicate == 'equals': res = tmpGeom.equals(geom) elif predicate == 'touches': res = tmpGeom.touches(geom) elif predicate == 'overlaps': res = tmpGeom.overlaps(geom) elif predicate == 'within': res = tmpGeom.within(geom) elif predicate == 'crosses': res = tmpGeom.crosses(geom) if res: selectedSet.append(feat.id()) break progress.setPercentage(int(current * total)) if 'disjoint' in predicates: selectedSet = selectedSet + disjoinSet for i, f in enumerate(vector.features(layer)): if f.id() in selectedSet: writer.addFeature(f) progress.setPercentage(100 * i / float(featureCount)) del writer
def processAlgorithm(self, progress): target = dataobjects.getObjectFromUri( self.getParameterValue(self.TARGET)) join = dataobjects.getObjectFromUri( self.getParameterValue(self.JOIN)) predicates = self.getParameterValue(self.PREDICATE) precision = self.getParameterValue(self.PRECISION) summary = self.getParameterValue(self.SUMMARY) == 1 keep = self.getParameterValue(self.KEEP) == 1 sumList = self.getParameterValue(self.STATS).lower().split(',') targetFields = target.fields() joinFields = join.fields() fieldList = QgsFields() if not summary: joinFields = vector.testForUniqueness(targetFields, joinFields) seq = list(range(len(targetFields) + len(joinFields))) targetFields.extend(joinFields) targetFields = dict(list(zip(seq, targetFields))) else: numFields = {} for j in range(len(joinFields)): if joinFields[j].type() in [QVariant.Int, QVariant.Double, QVariant.LongLong, QVariant.UInt, QVariant.ULongLong]: numFields[j] = [] for i in sumList: field = QgsField(i + str(joinFields[j].name()), QVariant.Double, '', 24, 16) fieldList.append(field) field = QgsField('count', QVariant.Double, '', 24, 16) fieldList.append(field) joinFields = vector.testForUniqueness(targetFields, fieldList) targetFields.extend(fieldList) seq = list(range(len(targetFields))) targetFields = dict(list(zip(seq, targetFields))) fields = QgsFields() for f in list(targetFields.values()): fields.append(f) writer = self.getOutputFromName(self.OUTPUT).getVectorWriter( fields, target.wkbType(), target.crs()) outFeat = QgsFeature() inFeatB = QgsFeature() inGeom = QgsGeometry() index = vector.spatialindex(join) mapP2 = dict() features = vector.features(join) for f in features: mapP2[f.id()] = QgsFeature(f) features = vector.features(target) total = 100.0 / len(features) for c, f in enumerate(features): atMap1 = f.attributes() outFeat.setGeometry(f.geometry()) inGeom = vector.snapToPrecision(f.geometry(), precision) none = True joinList = [] if inGeom.type() == QgsWkbTypes.PointGeometry: bbox = inGeom.buffer(10, 2).boundingBox() else: bbox = inGeom.boundingBox() bufferedBox = vector.bufferedBoundingBox(bbox, 0.51 * precision) joinList = index.intersects(bufferedBox) if len(joinList) > 0: count = 0 for i in joinList: inFeatB = mapP2[i] inGeomB = vector.snapToPrecision(inFeatB.geometry(), precision) res = False for predicate in predicates: if predicate == 'intersects': res = inGeom.intersects(inGeomB) elif predicate == 'contains': res = inGeom.contains(inGeomB) elif predicate == 'equals': res = inGeom.equals(inGeomB) elif predicate == 'touches': res = inGeom.touches(inGeomB) elif predicate == 'overlaps': res = inGeom.overlaps(inGeomB) elif predicate == 'within': res = inGeom.within(inGeomB) elif predicate == 'crosses': res = inGeom.crosses(inGeomB) if res: break if res: count = count + 1 none = False atMap2 = inFeatB.attributes() if not summary: atMap = atMap1 atMap2 = atMap2 atMap.extend(atMap2) atMap = dict(list(zip(seq, atMap))) break else: for j in list(numFields.keys()): numFields[j].append(atMap2[j]) if summary and not none: atMap = atMap1 for j in list(numFields.keys()): for k in sumList: if k == 'sum': atMap.append(sum(self._filterNull(numFields[j]))) elif k == 'mean': try: nn_count = sum(1 for _ in self._filterNull(numFields[j])) atMap.append(sum(self._filterNull(numFields[j])) / nn_count) except ZeroDivisionError: atMap.append(NULL) elif k == 'min': try: atMap.append(min(self._filterNull(numFields[j]))) except ValueError: atMap.append(NULL) elif k == 'median': atMap.append(self._median(numFields[j])) else: try: atMap.append(max(self._filterNull(numFields[j]))) except ValueError: atMap.append(NULL) numFields[j] = [] atMap.append(count) atMap = dict(list(zip(seq, atMap))) if none: outFeat.setAttributes(atMap1) else: outFeat.setAttributes(list(atMap.values())) if keep: writer.addFeature(outFeat) else: if not none: writer.addFeature(outFeat) progress.setPercentage(int(c * total)) del writer
def processAlgorithm(self, progress): filename = self.getParameterValue(self.INPUT) inputLayer = dataobjects.getObjectFromUri(filename) method = self.getParameterValue(self.METHOD) filename2 = self.getParameterValue(self.INTERSECT) selectLayer = dataobjects.getObjectFromUri(filename2) predicates = self.getParameterValue(self.PREDICATE) oldSelection = set(inputLayer.selectedFeaturesIds()) inputLayer.removeSelection() index = vector.spatialindex(inputLayer) if 'disjoint' in predicates: disjoinSet = [] for feat in vector.features(inputLayer): disjoinSet.append(feat.id()) geom = QgsGeometry() selectedSet = [] current = 0 features = vector.features(selectLayer) total = 100.0 / float(len(features)) for f in features: geom = QgsGeometry(f.geometry()) intersects = index.intersects(geom.boundingBox()) for i in intersects: request = QgsFeatureRequest().setFilterFid(i) feat = inputLayer.getFeatures(request).next() tmpGeom = QgsGeometry(feat.geometry()) res = False for predicate in predicates: if predicate == 'disjoint': if tmpGeom.intersects(geom): try: disjoinSet.remove(feat.id()) except: pass # already removed else: if predicate == 'intersects': res = tmpGeom.intersects(geom) elif predicate == 'contains': res = tmpGeom.contains(geom) elif predicate == 'equals': res = tmpGeom.equals(geom) elif predicate == 'touches': res = tmpGeom.touches(geom) elif predicate == 'overlaps': res = tmpGeom.overlaps(geom) elif predicate == 'within': res = tmpGeom.within(geom) elif predicate == 'crosses': res = tmpGeom.crosses(geom) if res: selectedSet.append(feat.id()) break current += 1 progress.setPercentage(int(current * total)) if 'disjoint' in predicates: selectedSet = selectedSet + disjoinSet if method == 1: selectedSet = list(oldSelection.union(selectedSet)) elif method == 2: selectedSet = list(oldSelection.difference(selectedSet)) inputLayer.setSelectedFeatures(selectedSet) self.setOutputValue(self.OUTPUT, filename)
def processAlgorithm(self, progress): filename = self.getParameterValue(self.INPUT) inputLayer = dataobjects.getObjectFromUri(filename) method = self.getParameterValue(self.METHOD) filename = self.getParameterValue(self.INTERSECT) selectLayer = dataobjects.getObjectFromUri(filename) predicates = self.getParameterValue(self.PREDICATE) oldSelection = set(inputLayer.selectedFeaturesIds()) inputLayer.removeSelection() index = vector.spatialindex(inputLayer) if 'disjoint' in predicates: disjoinSet = [] for feat in vector.features(inputLayer): disjoinSet.append(feat.id()) geom = QgsGeometry() selectedSet = [] current = 0 features = vector.features(selectLayer) total = 100.0 / float(len(features)) for f in features: geom = QgsGeometry(f.geometry()) intersects = index.intersects(geom.boundingBox()) for i in intersects: request = QgsFeatureRequest().setFilterFid(i) feat = inputLayer.getFeatures(request).next() tmpGeom = QgsGeometry(feat.geometry()) res = False for predicate in predicates: if predicate == 'disjoint': if tmpGeom.intersects(geom): try: disjoinSet.remove(feat.id()) except: pass # already removed else: if predicate == 'intersects': res = tmpGeom.intersects(geom) elif predicate == 'contains': res = tmpGeom.contains(geom) elif predicate == 'equals': res = tmpGeom.equals(geom) elif predicate == 'touches': res = tmpGeom.touches(geom) elif predicate == 'overlaps': res = tmpGeom.overlaps(geom) elif predicate == 'within': res = tmpGeom.within(geom) elif predicate == 'crosses': res = tmpGeom.crosses(geom) if res: selectedSet.append(feat.id()) break current += 1 progress.setPercentage(int(current * total)) if 'disjoint' in predicates: selectedSet = selectedSet + disjoinSet if method == 1: selectedSet = list(oldSelection.union(selectedSet)) elif method == 2: selectedSet = list(oldSelection.difference(selectedSet)) inputLayer.setSelectedFeatures(selectedSet) self.setOutputValue(self.OUTPUT, filename)
def mergeLines(self, layer): pointsAndLineDict = self.startOrEndIntersectionsDict(layer) if not pointsAndLineDict: return False toMerge = [] for ptAndLine in pointsAndLineDict: linesArray = pointsAndLineDict[ptAndLine] smallerAngle = 360 linePair = [] for i in range(len(linesArray)): line1 = linesArray[i] for j in range(i + 1, len(linesArray)): line2 = linesArray[j] deflection = abs( self.anglesBetweenLines(line1, line2, ptAndLine) - 180) if deflection < smallerAngle: newGeometry = line1.geometry().combine( line2.geometry()).mergeLines() if newGeometry.isMultipart(): continue geometry = newGeometry.asPolyline() ptLast = QgsGeometry().fromPointXY( QgsPointXY(geometry[-1])) ptFirst = QgsGeometry().fromPointXY( QgsPointXY(geometry[0])) if ptFirst.equals(ptLast): continue smallerAngle = deflection linePair = [line1.id(), line2.id()] if linePair: toMerge.append(linePair) #Merge Two Lines layer.startEditing() idsToRemove = [] changeLines = {} for lines in toMerge: line1id = lines[0] line2id = lines[1] while line1id in changeLines: line1id = changeLines[line1id] while line2id in changeLines: line2id = changeLines[line2id] line1 = layer.getFeature(line1id) line2 = layer.getFeature(line2id) newGeometry = line1.geometry().combine( line2.geometry()).mergeLines() if newGeometry.isMultipart() or newGeometry.isNull(): continue geometry = newGeometry.asPolyline() ptLast = QgsGeometry().fromPointXY(QgsPointXY(geometry[-1])) ptFirst = QgsGeometry().fromPointXY(QgsPointXY(geometry[0])) if ptFirst.equals(ptLast): continue line1.setGeometry(newGeometry) layer.updateFeature(line1) changeLines[line2id] = line1id idsToRemove.append(line2.id()) layer.deleteFeatures(idsToRemove) return True