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[Geometry checker] Add line layer intersection check
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src/plugins/geometry_checker/checks/qgsgeometrylinelayerintersectioncheck.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /*************************************************************************** | ||
| qgsgeometrylinelayerintersectioncheck.cpp | ||
| --------------------- | ||
| begin : September 2017 | ||
| copyright : (C) 2017 by Sandro Mani / Sourcepole AG | ||
| email : smani at sourcepole dot ch | ||
| *************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
|
|
||
| #include "qgsgeometrylinelayerintersectioncheck.h" | ||
| #include "qgspolygon.h" | ||
| #include "qgslinestring.h" | ||
| #include "utils/qgsfeaturepool.h" | ||
|
|
||
| void QgsGeometryLineLayerIntersectionCheck::collectErrors( QList<QgsGeometryCheckError *> &errors, QStringList &/*messages*/, QAtomicInt *progressCounter, const QMap<QString, QgsFeatureIds> &ids ) const | ||
| { | ||
| QMap<QString, QgsFeatureIds> featureIds = ids.isEmpty() ? allLayerFeatureIds() : ids; | ||
| QgsGeometryCheckerUtils::LayerFeatures layerFeatures( mContext->featurePools, featureIds, mCompatibleGeometryTypes, progressCounter, true ); | ||
| for ( const QgsGeometryCheckerUtils::LayerFeature &layerFeature : layerFeatures ) | ||
| { | ||
| const QgsAbstractGeometry *geom = layerFeature.geometry(); | ||
| for ( int iPart = 0, nParts = geom->partCount(); iPart < nParts; ++iPart ) | ||
| { | ||
| const QgsLineString *line = dynamic_cast<const QgsLineString *>( QgsGeometryCheckerUtils::getGeomPart( geom, iPart ) ); | ||
| if ( !line ) | ||
| { | ||
| // Should not happen | ||
| continue; | ||
| } | ||
|
|
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| // Check whether the line intersects with any other features of the specified layer | ||
| QgsGeometryCheckerUtils::LayerFeatures checkFeatures( mContext->featurePools, QStringList() << mCheckLayer, line->boundingBox(), {QgsWkbTypes::LineGeometry, QgsWkbTypes::PolygonGeometry} ); | ||
| for ( const QgsGeometryCheckerUtils::LayerFeature &checkFeature : checkFeatures ) | ||
| { | ||
| if ( checkFeature == layerFeature ) | ||
| { | ||
| // Skip current feature | ||
| continue; | ||
| } | ||
| const QgsAbstractGeometry *testGeom = checkFeature.geometry(); | ||
| for ( int jPart = 0, mParts = testGeom->partCount(); jPart < mParts; ++jPart ) | ||
| { | ||
| QgsPoint inter; | ||
| const QgsAbstractGeometry *part = QgsGeometryCheckerUtils::getGeomPart( testGeom, jPart ); | ||
| if ( const QgsLineString *testLine = dynamic_cast<const QgsLineString *>( part ) ) | ||
| { | ||
| if ( QgsGeometryCheckerUtils::linesIntersect( line, testLine, mContext->tolerance, inter ) ) | ||
| { | ||
| errors.append( new QgsGeometryCheckError( this, layerFeature, inter ) ); | ||
| } | ||
| } | ||
| else if ( const QgsPolygonV2 *polygon = dynamic_cast<const QgsPolygonV2 *>( part ) ) | ||
| { | ||
| QList<const QgsLineString *> rings; | ||
| if ( const QgsLineString *exterior = dynamic_cast<const QgsLineString *>( polygon->exteriorRing() ) ) | ||
| { | ||
| rings.append( exterior ); | ||
| } | ||
| for ( int iInt = 0, nInt = polygon->numInteriorRings(); iInt < nInt; ++iInt ) | ||
| { | ||
| if ( const QgsLineString *interior = dynamic_cast<const QgsLineString *>( polygon->interiorRing( iInt ) ) ) | ||
| { | ||
| rings.append( interior ); | ||
| } | ||
| } | ||
| for ( const QgsLineString *ring : rings ) | ||
| { | ||
| if ( QgsGeometryCheckerUtils::linesIntersect( ring, testLine, mContext->tolerance, inter ) ) | ||
| { | ||
| errors.append( new QgsGeometryCheckError( this, layerFeature, inter ) ); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| void QgsGeometryLineLayerIntersectionCheck::fixError( QgsGeometryCheckError *error, int method, const QMap<QString, int> & /*mergeAttributeIndices*/, Changes & /*changes*/ ) const | ||
| { | ||
| if ( method == NoChange ) | ||
| { | ||
| error->setFixed( method ); | ||
| } | ||
| else | ||
| { | ||
| error->setFixFailed( tr( "Unknown method" ) ); | ||
| } | ||
| } | ||
|
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||
| QStringList QgsGeometryLineLayerIntersectionCheck::getResolutionMethods() const | ||
| { | ||
| static QStringList methods = QStringList() << tr( "No action" ); | ||
| return methods; | ||
| } |
39 changes: 39 additions & 0 deletions
39
src/plugins/geometry_checker/checks/qgsgeometrylinelayerintersectioncheck.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| /*************************************************************************** | ||
| qgsgeometrylinelayerintersectioncheck.h | ||
| --------------------- | ||
| begin : June 2017 | ||
| copyright : (C) 2017 by Sandro Mani / Sourcepole AG | ||
| email : smani at sourcepole dot ch | ||
| *************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| ***************************************************************************/ | ||
|
|
||
| #ifndef QGSGEOMETRYLINELAYERINTERSECTIONCHECK_H | ||
| #define QGSGEOMETRYLINELAYERINTERSECTIONCHECK_H | ||
|
|
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| #include "qgsgeometrycheck.h" | ||
|
|
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| class QgsGeometryLineLayerIntersectionCheck : public QgsGeometryCheck | ||
| { | ||
| Q_OBJECT | ||
|
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| public: | ||
| QgsGeometryLineLayerIntersectionCheck( QgsGeometryCheckerContext *context, const QString &checkLayer ) | ||
| : QgsGeometryCheck( FeatureNodeCheck, {QgsWkbTypes::LineGeometry}, context ), mCheckLayer( checkLayer ) | ||
| {} | ||
| void collectErrors( QList<QgsGeometryCheckError *> &errors, QStringList &messages, QAtomicInt *progressCounter = nullptr, const QMap<QString, QgsFeatureIds> &ids = QMap<QString, QgsFeatureIds>() ) const override; | ||
| void fixError( QgsGeometryCheckError *error, int method, const QMap<QString, int> &mergeAttributeIndices, Changes &changes ) const override; | ||
| QStringList getResolutionMethods() const override; | ||
| QString errorDescription() const override { return tr( "Intersection" ); } | ||
| QString errorName() const override { return QStringLiteral( "QgsGeometryLineLayerIntersectionCheck" ); } | ||
| private: | ||
| enum ResolutionMethod { NoChange }; | ||
| QString mCheckLayer; | ||
| }; | ||
|
|
||
| #endif // QGSGEOMETRYLINELAYERINTERSECTIONCHECK_H |
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