def join(self, processing, output_file_name, input_layer, join_layer):
"""Join attributes by location creating output file(s) discarting non-matching from the match results and return a join count"""
output_match_type, output_file_path = self._get_output_file_details(
output_file_name)
try:
r = processing.run(
"native:joinattributesbylocation", {
'INPUT': input_layer,
'JOIN': join_layer,
'PREDICATE': self._geopredicate_criteria,
'JOIN_FIELDS': self._join_layer_fields,
'METHOD': self._join_type,
'DISCARD_NONMATCHING':
self._DEFAULT_DISCARD_NONMATCHING_FROM_MATCH_RESULTS,
'PREFIX': f"{self._join_layer_name}_",
output_match_type: output_file_path
})
except:
raise C_Exceptions.UnexpectedError(sys.exc_info()[0])
if 'JOINED_COUNT' in r:
return r['JOINED_COUNT']
else:
return None
def main(argv):
script_name = os.path.basename(__file__)
try:
# options/arguments + initialization
print("Initialization...")
aaif = Add(argv)
# load input layer
print("Loading input layer...")
input_layer = aaif.create_vector_layer(aaif.get_input_layer_path(),
script_name)
# split input layer
print("Adding autoincremental field...")
aaif.add_autoincremental_field(processing, input_layer,
aaif.get_field_name(), aaif.get_start(),
aaif.get_output_file_path())
except ( \
C_Exceptions.DisplayHelpError, \
C_Exceptions.MissingArgumentsError, \
C_Exceptions.OptionsError):
C_Help.display(script_name)
except ( \
C_Exceptions.LoadVectorLayerError, \
C_Exceptions.LoadVectorLayerNotValidError, \
C_Exceptions.ProcessingError, \
C_Exceptions.UnexpectedError):
pass
except Exception as ex:
C_Exceptions.UnexpectedError(ex)
def main(argv):
script_name = os.path.basename(__file__)
try:
# options/arguments + initialization
print("Initialization...")
simplify = Simplify(argv)
# load input layer
print("Loading input layer...")
input_layer = simplify.create_vector_layer(simplify.get_input_layer_path(), script_name)
# simplify polygon
print("Simplifying geometries...")
simplify.simplify_geometries(processing, input_layer, simplify.get_method(), simplify.get_tolerance(), simplify.get_output_file_path())
except ( \
C_Exceptions.DisplayHelpError, \
C_Exceptions.MissingArgumentsError, \
C_Exceptions.OptionsError):
C_Help.display(script_name)
except ( \
C_Exceptions.LoadVectorLayerError, \
C_Exceptions.LoadVectorLayerNotValidError, \
C_Exceptions.ProcessingError, \
C_Exceptions.UnexpectedError):
pass
except Exception as ex:
C_Exceptions.UnexpectedError(ex)
def main(argv):
script_name = os.path.basename(__file__)
try:
# options/arguments + initialization
print("Initialization...")
cgrid = Create(argv)
# load grid extent layer
print("Loading grid extent layer...")
grid_extent = cgrid.create_vector_layer(cgrid.get_grid_extent_path(),
script_name)
# create grid from extent layer
print("Creating grid from extent layer...")
cgrid.create_grid(processing, grid_extent)
except ( \
C_Exceptions.DisplayHelpError, \
C_Exceptions.MissingArgumentsError, \
C_Exceptions.OptionsError):
C_Help.display(script_name)
except ( \
C_Exceptions.LoadVectorLayerError, \
C_Exceptions.LoadVectorLayerNotValidError, \
C_Exceptions.ProcessingError, \
C_Exceptions.UnexpectedError):
pass
except Exception as ex:
C_Exceptions.UnexpectedError(ex)
def _load_options(argv, short_options, long_options):
"""Load options from arguments"""
try:
opts, args = getopt.getopt(argv, short_options, long_options)
except (getopt.GetoptError, C_Exceptions.MissingArgumentsError,
C_Exceptions.DisplayHelpError) as ex:
raise C_Exceptions.OptionsError(ex)
except Exception as ex:
raise C_Exceptions.UnexpectedError(ex)
return opts
def add_autoincremental_field(self, processing, input_layer, field_name, start, output_file):
"""Add autoincremenetal field to vector layer features"""
try:
processing.run("native:addautoincrementalfield", {
'INPUT': self._input_layer_path,
'FIELD_NAME': self._field_name,
'START': self._start,
'OUTPUT': self._output_file
})
except QgsProcessingException as ex:
raise C_Exceptions.ProcessingError(ex)
except Exception as ex:
raise C_Exceptions.UnexpectedError(ex)
def split_with_lines(self, processing, input_layer, split_layer,
output_file):
"""Split the input layer along the lines of the split layer"""
try:
processing.run(
"native:splitwithlines", {
'INPUT': self._input_layer_path,
'LINES': self._split_layer_path,
'OUTPUT': self._output_file
})
except QgsProcessingException as ex:
raise C_Exceptions.ProcessingError(ex)
except Exception as ex:
raise C_Exceptions.UnexpectedError(ex)
def extract_polygon_from_layer_extent(self, processing, input_layer,
output_file):
"""Create a polygon from the input layer extent"""
try:
processing.run(
"native:polygonfromlayerextent", {
'INPUT': self._input_layer_path,
'ROUND_TO': 0,
'OUTPUT': self._output_file
})
except QgsProcessingException as ex:
raise C_Exceptions.ProcessingError(ex)
except Exception as ex:
raise C_Exceptions.UnexpectedError(ex)
def simplify_geometries(self, processing, input_layer, method, tolerance,
output_file):
"""Simplify geometries of a polygon using a given method and a tolerance"""
try:
processing.run(
"native:simplifygeometries", {
'INPUT': self._input_layer_path,
'METHOD': self._method,
'TOLERANCE': self._tolerance,
'OUTPUT': self._output_file
})
except QgsProcessingException as ex:
raise C_Exceptions.ProcessingError(ex)
except Exception as ex:
raise C_Exceptions.UnexpectedError(ex)
def create_grid(self, processing, grid_extent):
"""Create a grid and save it to an output file"""
try:
processing.run(
"native:creategrid", {
'TYPE': self._grid_type,
'EXTENT': grid_extent,
'HSPACING': self._horizontal_spacing,
'VSPACING': self._vertical_spacing,
'HOVERLAY': 0,
'VOVERLAY': 0,
'CRS': self._grid_crs,
'OUTPUT': self._output_file
})
except QgsProcessingException as ex:
raise C_Exceptions.ProcessingError(ex)
except Exception as ex:
raise C_Exceptions.UnexpectedError(ex)
def main(argv):
script_name = os.path.basename(__file__)
try:
# options/arguments + initialization
print("Initialization...")
split = Split(argv)
# load input layer
print("Loading input layer...")
input_layer = split.create_vector_layer(split.get_input_layer_path(),
script_name)
# load split layer
print("Loading split layer...")
split_layer = split.create_vector_layer(split.get_split_layer_path(),
script_name)
# split input layer
print("Splitting input layer...")
split.split_with_lines(processing, input_layer, split_layer,
split.get_output_file_path())
except ( \
C_Exceptions.DisplayHelpError, \
C_Exceptions.MissingArgumentsError, \
C_Exceptions.OptionsError):
C_Help.display(script_name)
except ( \
C_Exceptions.LoadVectorLayerError, \
C_Exceptions.LoadVectorLayerNotValidError, \
C_Exceptions.ProcessingError, \
C_Exceptions.UnexpectedError):
pass
except Exception as ex:
C_Exceptions.UnexpectedError(ex)