Invalid geometry vs. no geometry
Looking at the QGIS API Documentation:
bool QgsFeature::hasGeometry
Returns true if the feature has an associated geometry.
Is invalid geometry different from a feature having no associated geometry? If so, is there a tool like .hasGeometry in PyQGIS that returns whether or not the geometry is valid?
qgis python pyqgis geometry
asked 1 hour ago
jyinglingjyingling
348
add a comment |
Looking at the QGIS API Documentation:
bool QgsFeature::hasGeometry
Returns true if the feature has an associated geometry.
Is invalid geometry different from a feature having no associated geometry? If so, is there a tool like .hasGeometry in PyQGIS that returns whether or not the geometry is valid?
qgis python pyqgis geometry
asked 1 hour ago
jyinglingjyingling
348
add a comment |
Looking at the QGIS API Documentation:
bool QgsFeature::hasGeometry
Returns true if the feature has an associated geometry.
Is invalid geometry different from a feature having no associated geometry? If so, is there a tool like .hasGeometry in PyQGIS that returns whether or not the geometry is valid?
qgis python pyqgis geometry
asked 1 hour ago
jyinglingjyingling
348
Looking at the QGIS API Documentation:
bool QgsFeature::hasGeometry
Returns true if the feature has an associated geometry.
Is invalid geometry different from a feature having no associated geometry? If so, is there a tool like .hasGeometry in PyQGIS that returns whether or not the geometry is valid?
qgis python pyqgis geometry
qgis python pyqgis geometry
asked 1 hour ago
jyinglingjyingling
348
asked 1 hour ago
jyinglingjyingling
348
asked 1 hour ago
jyinglingjyingling
348
asked 1 hour ago
jyinglingjyingling
348
asked 1 hour ago
jyinglingjyingling
348
348
add a comment |
add a comment |
1 Answer
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Yes - they are two different concepts. A null geometry means "no geometry", vs an invalid geometry which means "there's a geometry, but it violates the simple features specification in some way"
To test geometry validity:
if f.geometry().isGeosValid():
...
answered 1 hour ago
ndawsonndawson
18.5k22641
add a comment |
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1 Answer
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1 Answer
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Yes - they are two different concepts. A null geometry means "no geometry", vs an invalid geometry which means "there's a geometry, but it violates the simple features specification in some way"
To test geometry validity:
if f.geometry().isGeosValid():
...
answered 1 hour ago
ndawsonndawson
18.5k22641
add a comment |
Yes - they are two different concepts. A null geometry means "no geometry", vs an invalid geometry which means "there's a geometry, but it violates the simple features specification in some way"
To test geometry validity:
if f.geometry().isGeosValid():
...
answered 1 hour ago
ndawsonndawson
18.5k22641
add a comment |
Yes - they are two different concepts. A null geometry means "no geometry", vs an invalid geometry which means "there's a geometry, but it violates the simple features specification in some way"
To test geometry validity:
if f.geometry().isGeosValid():
...
answered 1 hour ago
ndawsonndawson
18.5k22641
Yes - they are two different concepts. A null geometry means "no geometry", vs an invalid geometry which means "there's a geometry, but it violates the simple features specification in some way"
To test geometry validity:
if f.geometry().isGeosValid():
...
answered 1 hour ago
ndawsonndawson
18.5k22641
answered 1 hour ago
ndawsonndawson
18.5k22641
answered 1 hour ago
ndawsonndawson
18.5k22641
answered 1 hour ago
ndawsonndawson
18.5k22641
18.5k22641
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