def processAlgorithm(self, progress):
layer = QGisLayers.getObjectFromUri(self.getParameterValue(self.INPUT_LAYER))
fieldName = self.getParameterValue(self.FIELD_NAME)
outputFile = self.getOutputValue(self.OUTPUT)
values = utils.getUniqueValues(layer, layer.fieldNameIndex(fieldName))
self.createHTML(outputFile, values)
self.setOutputValue(self.TOTAL_VALUES, len(values))
self.setOutputValue(self.UNIQUE_VALUES, ";".join([unicode(v) for v in values]))
def processAlgorithm(self, progress):
filename = self.getParameterValue(self.INPUT)
layer = QGisLayers.getObjectFromUri(filename)
field = self.getParameterValue(self.FIELD)
method = self.getParameterValue(self.METHOD)
layer.removeSelection()
index = layer.fieldNameIndex(field)
unique = utils.getUniqueValues(layer, index)
featureCount = layer.featureCount()
value = int(self.getParameterValue(self.NUMBER))
if method == 0:
if value > featureCount:
raise GeoAlgorithmExecutionException("Selected number is greater that feature count. Choose lesser value and try again.")
else:
if value > 100:
raise GeoAlgorithmExecutionException("Persentage can't be greater than 100. Set corrent value and try again.")
value = value / 100.0
selran = []
inFeat = QgsFeature()
current = 0
total = 100.0 / float(featureCount * len(unique))
features = QGisLayers.features(layer)
if not len(unique) == featureCount:
for i in unique:
FIDs= []
for inFeat in features:
attrs = inFeat.attributes()
if attrs[index] == i:
FIDs.append(inFeat.id())
current += 1
progress.setPercentage(int(current * total))
if method == 1:
selValue = int(round(value * len(FIDs), 0))
else:
selValue = value
if selValue >= len(FIDs):
selFeat = FIDs
else:
selFeat = random.sample(FIDs, selValue)
selran.extend(selFeat)
layer.setSelectedFeatures(selran)
else:
layer.setSelectedFeatures(range(0, featureCount))
self.setOutputValue(self.OUTPUT, filename)
def processAlgorithm(self, progress):
layer = QGisLayers.getObjectFromUri(self.getParameterValue(self.INPUT))
output = self.getOutputValue(self.OUTPUT)
fieldName = self.getParameterValue(self.FIELD)
geomType = self.singleToMultiGeom(layer.dataProvider().geometryType())
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
layer.pendingFields().toList(), geomType, layer.crs())
inFeat = QgsFeature()
outFeat = QgsFeature()
inGeom = QgsGeometry()
outGeom = QgsGeometry()
index = layer.fieldNameIndex(fieldName)
unique = utils.getUniqueValues(layer, index)
current = 0
features = QGisLayers.features(layer)
total = 100.0 / float(len(features) * len(unique))
if not len(unique) == layer.featureCount():
for i in unique:
multi_feature = []
first = True
features = QGisLayers.features(layer)
for inFeat in features:
atMap = inFeat.attributes()
idVar = atMap[index]
if unicode(idVar).strip() == unicode(i).strip():
if first:
attrs = atMap
first = False
inGeom = QgsGeometry(inFeat.geometry())
vType = inGeom.type()
feature_list = self.extractAsMulti(inGeom)
multi_feature.extend(feature_list)
current += 1
progress.setPercentage(int(current * total))
outFeat.setAttributes(attrs)
outGeom = QgsGeometry(
self.convertGeometry(multi_feature, vType))
outFeat.setGeometry(outGeom)
writer.addFeature(outFeat)
del writer
else:
raise GeoAlgorithmExecutionException("Invalid unique ID field")
def processAlgorithm(self, progress):
layer = QGisLayers.getObjectFromUri(self.getParameterValue(self.INPUT))
output = self.getOutputValue(self.OUTPUT)
fieldName = self.getParameterValue(self.FIELD)
geomType = self.singleToMultiGeom(layer.dataProvider().geometryType())
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(layer.pendingFields().toList(),
geomType, layer.crs())
inFeat = QgsFeature()
outFeat = QgsFeature()
inGeom = QgsGeometry()
outGeom = QgsGeometry()
index = layer.fieldNameIndex(fieldName)
unique = utils.getUniqueValues(layer, index)
current = 0
features = QGisLayers.features(layer)
total = 100.0 / float(len(features) * len(unique))
if not len(unique) == layer.featureCount():
for i in unique:
multi_feature= []
first = True
features = QGisLayers.features(layer)
for inFeat in features:
atMap = inFeat.attributes()
idVar = atMap[index]
if unicode(idVar).strip() == unicode(i).strip():
if first:
attrs = atMap
first = False
inGeom = QgsGeometry(inFeat.geometry())
vType = inGeom.type()
feature_list = self.extractAsMulti(inGeom)
multi_feature.extend(feature_list)
current += 1
progress.setPercentage(int(current * total))
outFeat.setAttributes(attrs)
outGeom = QgsGeometry(self.convertGeometry(multi_feature, vType))
outFeat.setGeometry(outGeom)
writer.addFeature(outFeat)
del writer
else:
raise GeoAlgorithmExecutionException("Invalid unique ID field")
def processAlgorithm(self, progress):
useField = not self.getParameterValue(Dissolve.DISSOLVE_ALL)
fieldname = self.getParameterValue(Dissolve.FIELD)
vlayerA = QGisLayers.getObjectFromUri(
self.getParameterValue(Dissolve.INPUT))
field = vlayerA.fieldNameIndex(fieldname)
vproviderA = vlayerA.dataProvider()
fields = vproviderA.fields()
writer = self.getOutputFromName(Dissolve.OUTPUT).getVectorWriter(
fields, vproviderA.geometryType(), vproviderA.crs())
outFeat = QgsFeature()
nElement = 0
nFeat = vproviderA.featureCount()
if not useField:
first = True
features = QGisLayers.features(vlayerA)
for inFeat in features:
nElement += 1
progress.setPercentage(int(nElement / nFeat * 100))
if first:
attrs = inFeat.attributes()
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:
raise GeoAlgorithmExecutionException(
"Geometry exception while dissolving")
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
else:
unique = utils.getUniqueValues(vlayerA, int(field))
nFeat = nFeat * len(unique)
for item in unique:
first = True
add = True
features = QGisLayers.features(vlayerA)
for inFeat in features:
nElement += 1
progress.setPercentage(int(nElement / nFeat * 100))
atMap = inFeat.attributes()
tempItem = atMap[field]
if unicode(tempItem).strip() == unicode(item).strip():
if first:
QgsGeometry(inFeat.geometry())
tmpInGeom = QgsGeometry(inFeat.geometry())
outFeat.setGeometry(tmpInGeom)
first = False
attrs = inFeat.attributes()
else:
tmpInGeom = QgsGeometry(inFeat.geometry())
tmpOutGeom = QgsGeometry(outFeat.geometry())
try:
tmpOutGeom = QgsGeometry(
tmpOutGeom.combine(tmpInGeom))
outFeat.setGeometry(tmpOutGeom)
except:
raise GeoAlgorithmExecutionException(
"Geometry exception while dissolving")
if add:
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
del writer
def processAlgorithm(self, progress):
useField = not self.getParameterValue(Dissolve.DISSOLVE_ALL)
fieldname = self.getParameterValue(Dissolve.FIELD)
vlayerA = QGisLayers.getObjectFromUri(self.getParameterValue(Dissolve.INPUT))
field = vlayerA.fieldNameIndex(fieldname)
vproviderA = vlayerA.dataProvider()
fields = vproviderA.fields()
writer = self.getOutputFromName(Dissolve.OUTPUT).getVectorWriter(
fields, vproviderA.geometryType(), vproviderA.crs()
)
outFeat = QgsFeature()
nElement = 0
nFeat = vproviderA.featureCount()
if not useField:
first = True
features = QGisLayers.features(vlayerA)
for inFeat in features:
nElement += 1
progress.setPercentage(int(nElement / nFeat * 100))
if first:
attrs = inFeat.attributes()
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:
raise GeoAlgorithmExecutionException("Geometry exception while dissolving")
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
else:
unique = utils.getUniqueValues(vlayerA, int(field))
nFeat = nFeat * len(unique)
for item in unique:
first = True
add = True
features = QGisLayers.features(vlayerA)
for inFeat in features:
nElement += 1
progress.setPercentage(int(nElement / nFeat * 100))
atMap = inFeat.attributes()
tempItem = atMap[field]
if unicode(tempItem).strip() == unicode(item).strip():
if first:
QgsGeometry(inFeat.geometry())
tmpInGeom = QgsGeometry(inFeat.geometry())
outFeat.setGeometry(tmpInGeom)
first = False
attrs = inFeat.attributes()
else:
tmpInGeom = QgsGeometry(inFeat.geometry())
tmpOutGeom = QgsGeometry(outFeat.geometry())
try:
tmpOutGeom = QgsGeometry(tmpOutGeom.combine(tmpInGeom))
outFeat.setGeometry(tmpOutGeom)
except:
raise GeoAlgorithmExecutionException("Geometry exception while dissolving")
if add:
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
del writer
