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Processing algorithm doesen't work - PyQGIS 3.4

0

I am trying to execute the processing algorithm extractbylocation. Anyway, firstly I run that algorithm in QGIS3 and then just copy the code from the processing history and changes paths to variables. I have some features with invalid geometries (in QGIS in the settings it is set for processing to ignore that features),so that is maybe my problem. In order to avoid that I deleted all the features with invalid geometries and the problem is still there.
So my code looks like this:

input_path = 'C:/Users/file.shp'

output_path = 'C:/Users/file_out.shp

crs = QgsCoordinateReferenceSystem("epsg:4326")

input = QgsVectorLayer(input_path, "links", "ogr")

input.setCrs(crs)



#deleting features with invalid geometries

for f in input.getFeatures():

    geom = f.geometry()

    if geom.isGeosValid():

        print('valid')

    else:

        input.deleteFeature(f.id())

        print('not valid')



sys.path.append('C:/Program Files/QGIS 3.4/apps/qgis/python/plugins')

import processing

from processing.core.Processing import Processing

Processing.initialize()

QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())



processing.run("native:extractbylocation",

               {'INPUT': input, 'PREDICATE': [1],

                'INTERSECT': 'C:\Users\points.shp|layername=pointss',

                'OUTPUT': outputh_path})

I got the error next to the output line in the processing algorithm.

 File "path_to_my_file_py", line 49,    'OUTPUT': outputh_path})

 File "path_to_my_file_py", line 84, in run

return Processing.runAlgorithm(algOrName, parameters, onFinish, feedback, context)

 File "path_to_processing_file_py", line 194, in runAlgorithm

raise QgsProcessingException(msg)

_core.QgsProcessingException: There were errors executing the algorithm.

qgis pyqgis qgis-3 qgis-processing

share

asked 1 min ago

NevenNeven

1369

add a comment | 

0

I am trying to execute the processing algorithm extractbylocation. Anyway, firstly I run that algorithm in QGIS3 and then just copy the code from the processing history and changes paths to variables. I have some features with invalid geometries (in QGIS in the settings it is set for processing to ignore that features),so that is maybe my problem. In order to avoid that I deleted all the features with invalid geometries and the problem is still there.
So my code looks like this:

input_path = 'C:/Users/file.shp'

output_path = 'C:/Users/file_out.shp

crs = QgsCoordinateReferenceSystem("epsg:4326")

input = QgsVectorLayer(input_path, "links", "ogr")

input.setCrs(crs)



#deleting features with invalid geometries

for f in input.getFeatures():

    geom = f.geometry()

    if geom.isGeosValid():

        print('valid')

    else:

        input.deleteFeature(f.id())

        print('not valid')



sys.path.append('C:/Program Files/QGIS 3.4/apps/qgis/python/plugins')

import processing

from processing.core.Processing import Processing

Processing.initialize()

QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())



processing.run("native:extractbylocation",

               {'INPUT': input, 'PREDICATE': [1],

                'INTERSECT': 'C:\Users\points.shp|layername=pointss',

                'OUTPUT': outputh_path})

I got the error next to the output line in the processing algorithm.

 File "path_to_my_file_py", line 49,    'OUTPUT': outputh_path})

 File "path_to_my_file_py", line 84, in run

return Processing.runAlgorithm(algOrName, parameters, onFinish, feedback, context)

 File "path_to_processing_file_py", line 194, in runAlgorithm

raise QgsProcessingException(msg)

_core.QgsProcessingException: There were errors executing the algorithm.

qgis pyqgis qgis-3 qgis-processing

share

asked 1 min ago

NevenNeven

1369

add a comment | 

I am trying to execute the processing algorithm extractbylocation. Anyway, firstly I run that algorithm in QGIS3 and then just copy the code from the processing history and changes paths to variables. I have some features with invalid geometries (in QGIS in the settings it is set for processing to ignore that features),so that is maybe my problem. In order to avoid that I deleted all the features with invalid geometries and the problem is still there.
So my code looks like this:

input_path = 'C:/Users/file.shp'

output_path = 'C:/Users/file_out.shp

crs = QgsCoordinateReferenceSystem("epsg:4326")

input = QgsVectorLayer(input_path, "links", "ogr")

input.setCrs(crs)



#deleting features with invalid geometries

for f in input.getFeatures():

    geom = f.geometry()

    if geom.isGeosValid():

        print('valid')

    else:

        input.deleteFeature(f.id())

        print('not valid')



sys.path.append('C:/Program Files/QGIS 3.4/apps/qgis/python/plugins')

import processing

from processing.core.Processing import Processing

Processing.initialize()

QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())



processing.run("native:extractbylocation",

               {'INPUT': input, 'PREDICATE': [1],

                'INTERSECT': 'C:\Users\points.shp|layername=pointss',

                'OUTPUT': outputh_path})

I got the error next to the output line in the processing algorithm.

 File "path_to_my_file_py", line 49,    'OUTPUT': outputh_path})

 File "path_to_my_file_py", line 84, in run

return Processing.runAlgorithm(algOrName, parameters, onFinish, feedback, context)

 File "path_to_processing_file_py", line 194, in runAlgorithm

raise QgsProcessingException(msg)

_core.QgsProcessingException: There were errors executing the algorithm.

qgis pyqgis qgis-3 qgis-processing

share

asked 1 min ago

NevenNeven

1369

input_path = 'C:/Users/file.shp'

output_path = 'C:/Users/file_out.shp

crs = QgsCoordinateReferenceSystem("epsg:4326")

input = QgsVectorLayer(input_path, "links", "ogr")

input.setCrs(crs)



#deleting features with invalid geometries

for f in input.getFeatures():

    geom = f.geometry()

    if geom.isGeosValid():

        print('valid')

    else:

        input.deleteFeature(f.id())

        print('not valid')



sys.path.append('C:/Program Files/QGIS 3.4/apps/qgis/python/plugins')

import processing

from processing.core.Processing import Processing

Processing.initialize()

QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())



processing.run("native:extractbylocation",

               {'INPUT': input, 'PREDICATE': [1],

                'INTERSECT': 'C:\Users\points.shp|layername=pointss',

                'OUTPUT': outputh_path})

 File "path_to_my_file_py", line 49,    'OUTPUT': outputh_path})

 File "path_to_my_file_py", line 84, in run

return Processing.runAlgorithm(algOrName, parameters, onFinish, feedback, context)

 File "path_to_processing_file_py", line 194, in runAlgorithm

raise QgsProcessingException(msg)

_core.QgsProcessingException: There were errors executing the algorithm.

share

asked 1 min ago

NevenNeven

1369

share

asked 1 min ago

NevenNeven

1369

asked 1 min ago

NevenNeven

1369

asked 1 min ago

NevenNeven

1369