void QgsGeometryContainedCheck::fixError( QgsGeometryCheckError *error, int method, const QMap<QString, int> & /*mergeAttributeIndices*/, Changes &changes ) const
{
QgsGeometryContainedCheckError *containerError = static_cast<QgsGeometryContainedCheckError *>( error );
QgsFeaturePool *featurePoolA = mContext->featurePools[ error->layerId() ];
QgsFeaturePool *featurePoolB = mContext->featurePools[ containerError->containingFeature().first ];
QgsFeature featureA;
QgsFeature featureB;
if ( !featurePoolA->get( error->featureId(), featureA ) ||
!featurePoolB->get( containerError->containingFeature().second, featureB ) )
{
error->setObsolete();
return;
}
// Check if error still applies
QgsGeometryCheckerUtils::LayerFeature layerFeatureA( featurePoolA, featureA, true );
QgsGeometryCheckerUtils::LayerFeature layerFeatureB( featurePoolB, featureB, true );
std::unique_ptr< QgsGeometryEngine > geomEngineA = QgsGeometryCheckerUtils::createGeomEngine( layerFeatureA.geometry(), mContext->tolerance );
std::unique_ptr< QgsGeometryEngine > geomEngineB = QgsGeometryCheckerUtils::createGeomEngine( layerFeatureB.geometry(), mContext->tolerance );
if ( !( geomEngineB->contains( layerFeatureA.geometry() ) && !geomEngineA->contains( layerFeatureB.geometry() ) ) )
{
error->setObsolete();
return;
}
// Fix error
if ( method == NoChange )
{
error->setFixed( method );
}
else if ( method == Delete )
{
changes[error->layerId()][featureA.id()].append( Change( ChangeFeature, ChangeRemoved ) );
featurePoolA->deleteFeature( featureA.id() );
error->setFixed( method );
}
else
{
error->setFixFailed( tr( "Unknown method" ) );
}
}
void QgsGeometryOverlapCheck::fixError( QgsGeometryCheckError *error, int method, const QMap<QString, int> & /*mergeAttributeIndices*/, Changes &changes ) const
{
QString errMsg;
QgsGeometryOverlapCheckError *overlapError = static_cast<QgsGeometryOverlapCheckError *>( error );
QgsFeaturePool *featurePoolA = mContext->featurePools[ overlapError->layerId() ];
QgsFeaturePool *featurePoolB = mContext->featurePools[ overlapError->overlappedFeature().first ];
QgsFeature featureA;
QgsFeature featureB;
if ( !featurePoolA->get( overlapError->featureId(), featureA ) ||
!featurePoolB->get( overlapError->overlappedFeature().second, featureB ) )
{
error->setObsolete();
return;
}
// Check if error still applies
QgsGeometryCheckerUtils::LayerFeature layerFeatureA( featurePoolA, featureA, true );
QgsGeometryCheckerUtils::LayerFeature layerFeatureB( featurePoolB, featureB, true );
std::unique_ptr< QgsGeometryEngine > geomEngineA = QgsGeometryCheckerUtils::createGeomEngine( layerFeatureA.geometry(), mContext->reducedTolerance );
if ( !geomEngineA->overlaps( layerFeatureB.geometry() ) )
{
error->setObsolete();
return;
}
std::unique_ptr< QgsAbstractGeometry > interGeom( geomEngineA->intersection( layerFeatureB.geometry(), &errMsg ) );
if ( !interGeom )
{
error->setFixFailed( tr( "Failed to compute intersection between overlapping features: %1" ).arg( errMsg ) );
return;
}
// Search which overlap part this error parametrizes (using fuzzy-matching of the area and centroid...)
QgsAbstractGeometry *interPart = nullptr;
for ( int iPart = 0, nParts = interGeom->partCount(); iPart < nParts; ++iPart )
{
QgsAbstractGeometry *part = QgsGeometryCheckerUtils::getGeomPart( interGeom.get(), iPart );
if ( std::fabs( part->area() - overlapError->value().toDouble() ) < mContext->reducedTolerance &&
QgsGeometryCheckerUtils::pointsFuzzyEqual( part->centroid(), overlapError->location(), mContext->reducedTolerance ) )
{
interPart = part;
break;
}
}
if ( !interPart || interPart->isEmpty() )
{
error->setObsolete();
return;
}
// Fix error
if ( method == NoChange )
{
error->setFixed( method );
}
else if ( method == Subtract )
{
std::unique_ptr< QgsAbstractGeometry > diff1( geomEngineA->difference( interPart, &errMsg ) );
if ( !diff1 || diff1->isEmpty() )
{
diff1.reset();
}
else
{
QgsGeometryCheckerUtils::filter1DTypes( diff1.get() );
}
std::unique_ptr< QgsGeometryEngine > geomEngineB = QgsGeometryCheckerUtils::createGeomEngine( layerFeatureB.geometry(), mContext->reducedTolerance );
std::unique_ptr< QgsAbstractGeometry > diff2( geomEngineB->difference( interPart, &errMsg ) );
if ( !diff2 || diff2->isEmpty() )
{
diff2.reset();
}
else
{
QgsGeometryCheckerUtils::filter1DTypes( diff2.get() );
}
double shared1 = diff1 ? QgsGeometryCheckerUtils::sharedEdgeLength( diff1.get(), interPart, mContext->reducedTolerance ) : 0;
double shared2 = diff2 ? QgsGeometryCheckerUtils::sharedEdgeLength( diff2.get(), interPart, mContext->reducedTolerance ) : 0;
if ( !diff1 || !diff2 || shared1 == 0. || shared2 == 0. )
{
error->setFixFailed( tr( "Could not find shared edges between intersection and overlapping features" ) );
}
else
{
if ( shared1 < shared2 )
{
diff1->transform( featurePoolA->getLayerToMapTransform(), QgsCoordinateTransform::ReverseTransform );
featureA.setGeometry( QgsGeometry( std::move( diff1 ) ) );
changes[error->layerId()][featureA.id()].append( Change( ChangeFeature, ChangeChanged ) );
featurePoolA->updateFeature( featureA );
}
else
{
diff2->transform( featurePoolB->getLayerToMapTransform(), QgsCoordinateTransform::ReverseTransform );
featureB.setGeometry( QgsGeometry( std::move( diff2 ) ) );
changes[overlapError->overlappedFeature().first][featureB.id()].append( Change( ChangeFeature, ChangeChanged ) );
featurePoolB->updateFeature( featureB );
}
error->setFixed( method );
}
}
else
{
error->setFixFailed( tr( "Unknown method" ) );
}
}
