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[Processing] bugfix: intersection QGIS algorithm

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fixing this by testing int_com.
```
Traceback (most recent call last):
File "C:/PROGRA~1/QGIS2~1.17/apps/qgis/./python/plugins\processing\core\GeoAlgorithm.py", line 203, in execute
self.processAlgorithm(progress)
File "C:/PROGRA~1/QGIS2~1.17/apps/qgis/./python/plugins\processing\algs\qgis\Intersection.py", line 100, in processAlgorithm
int_geom = QgsGeometry(int_com.difference(int_sym))
```

AttributeError: 'NoneType' object has no attribute 'difference'
This commit is contained in:
rldhont 2016-09-16 17:50:46 +02:00
parent f5ffbbf801
commit 3661bc39db
1 changed files with 4 additions and 2 deletions
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6
python/plugins/processing/algs/qgis/Intersection.py
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@ -96,8 +96,10 @@ class Intersection(GeoAlgorithm):
int_geom = QgsGeometry(geom.intersection(tmpGeom))
if int_geom.wkbType() == QgsWkbTypes.Unknown or QgsWkbTypes.flatType(int_geom.geometry().wkbType()) == QgsWkbTypes.GeometryCollection:
int_com = geom.combine(tmpGeom)
int_sym = geom.symDifference(tmpGeom)
int_geom = QgsGeometry(int_com.difference(int_sym))
int_geom = QgsGeometry()
if int_com:
int_sym = geom.symDifference(tmpGeom)
int_geom = QgsGeometry(int_com.difference(int_sym))
if int_geom.isGeosEmpty() or not int_geom.isGeosValid():
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
self.tr('GEOS geoprocessing error: One or '