QGIS API Documentation 3.27.0-Master (9c08adf5ef)
qgsgeometryareacheck.h
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1/***************************************************************************
2 qgsgeometryareacheck.h
3 ---------------------
4 begin : September 2015
5 copyright : (C) 2014 by Sandro Mani / Sourcepole AG
6 email : smani at sourcepole dot ch
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#define SIP_NO_FILE
17
18#ifndef QGS_GEOMETRY_AREA_CHECK_H
19#define QGS_GEOMETRY_AREA_CHECK_H
20
21#include "qgsgeometrycheck.h"
22
23class QgsSurface;
24
29class ANALYSIS_EXPORT QgsGeometryAreaCheck : public QgsGeometryCheck
30{
31 Q_DECLARE_TR_FUNCTIONS( QgsGeometryAreaCheck )
32 public:
33 enum ResolutionMethod { MergeLongestEdge, MergeLargestArea, MergeIdenticalAttribute, Delete, NoChange };
34
35 QgsGeometryAreaCheck( QgsGeometryCheckContext *context, const QVariantMap &configuration )
36 : QgsGeometryCheck( context, configuration )
37 , mAreaThreshold( configurationValue<double>( "areaThreshold" ) )
38 {}
39 QList<QgsWkbTypes::GeometryType> compatibleGeometryTypes() const override { return factoryCompatibleGeometryTypes(); }
40 void collectErrors( const QMap<QString, QgsFeaturePool *> &featurePools, QList<QgsGeometryCheckError *> &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids = LayerFeatureIds() ) const override;
41 void fixError( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryCheckError *error, int method, const QMap<QString, int> &mergeAttributeIndices, Changes &changes ) const override;
42 Q_DECL_DEPRECATED QStringList resolutionMethods() const override;
43 QString id() const override { return factoryId(); }
44 QgsGeometryCheck::CheckType checkType() const override { return factoryCheckType(); }
45
46 static QList<QgsWkbTypes::GeometryType> factoryCompatibleGeometryTypes() {return {QgsWkbTypes::PolygonGeometry}; }
47 static bool factoryIsCompatible( QgsVectorLayer *layer ) SIP_SKIP { return factoryCompatibleGeometryTypes().contains( layer->geometryType() ); }
48 static QString factoryDescription() { return tr( "Minimal area" ); }
49 QString description() const override { return factoryDescription(); }
50 static QString factoryId() { return QStringLiteral( "QgsGeometryAreaCheck" ); }
52
53 private:
54 virtual bool checkThreshold( double layerToMapUnits, const QgsAbstractGeometry *geom, double &value ) const;
55 bool mergeWithNeighbor( const QMap<QString, QgsFeaturePool *> &featurePools, const QString &layerId, QgsFeature &feature, int partIdx, int method, int mergeAttributeIndex, Changes &changes, QString &errMsg ) const;
56
57 const double mAreaThreshold;
58};
59
60#endif // QGS_GEOMETRY_AREA_CHECK_H
Abstract base class for all geometries.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition: qgsfeedback.h:45
QgsGeometryAreaCheck(QgsGeometryCheckContext *context, const QVariantMap &configuration)
static QString factoryId()
static bool factoryIsCompatible(QgsVectorLayer *layer)
QString description() const override
Returns a human readable description for this check.
static QgsGeometryCheck::CheckType factoryCheckType()
QList< QgsWkbTypes::GeometryType > compatibleGeometryTypes() const override
A list of geometry types for which this check can be performed.
QString id() const override
Returns an id for this check.
QgsGeometryCheck::CheckType checkType() const override
Returns the check type.
static QString factoryDescription()
static QList< QgsWkbTypes::GeometryType > factoryCompatibleGeometryTypes()
Base configuration for geometry checks.
This represents an error reported by a geometry check.
This class implements a geometry check.
virtual void collectErrors(const QMap< QString, QgsFeaturePool * > &featurePools, QList< QgsGeometryCheckError * > &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids=QgsGeometryCheck::LayerFeatureIds()) const =0
The main worker method.
virtual Q_DECL_DEPRECATED QStringList resolutionMethods() const
Returns a list of descriptions for available resolutions for errors.
CheckType
The type of a check.
@ FeatureCheck
The check controls geometries as a whole.
virtual void fixError(const QMap< QString, QgsFeaturePool * > &featurePools, QgsGeometryCheckError *error, int method, const QMap< QString, int > &mergeAttributeIndices, Changes &changes) const
Fixes the error error with the specified method.
Surface geometry type.
Definition: qgssurface.h:34
Represents a vector layer which manages a vector based data sets.
#define SIP_SKIP
Definition: qgis_sip.h:126