QGIS API Documentation 3.41.0-Master (af5edcb665c)
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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:
41
42 QgsGeometryAreaCheck( QgsGeometryCheckContext *context, const QVariantMap &configuration )
43 : QgsGeometryCheck( context, configuration )
44 , mAreaThreshold( configurationValue<double>( "areaThreshold" ) )
45 {}
46 QList<Qgis::GeometryType> compatibleGeometryTypes() const override { return factoryCompatibleGeometryTypes(); }
47 void collectErrors( const QMap<QString, QgsFeaturePool *> &featurePools, QList<QgsGeometryCheckError *> &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids = LayerFeatureIds() ) const override;
48 void fixError( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryCheckError *error, int method, const QMap<QString, int> &mergeAttributeIndices, Changes &changes ) const override;
49 Q_DECL_DEPRECATED QStringList resolutionMethods() const override;
50 QString id() const override { return factoryId(); }
51 QgsGeometryCheck::CheckType checkType() const override { return factoryCheckType(); }
52
53 static QList<Qgis::GeometryType> factoryCompatibleGeometryTypes() { return { Qgis::GeometryType::Polygon }; }
54 static bool factoryIsCompatible( QgsVectorLayer *layer ) SIP_SKIP { return factoryCompatibleGeometryTypes().contains( layer->geometryType() ); }
55 QString description() const override { return factoryDescription(); }
57
58 private:
59 static QString factoryId() { return QStringLiteral( "QgsGeometryAreaCheck" ); }
60 static QString factoryDescription() { return tr( "Minimal area" ); }
61 virtual bool checkThreshold( double layerToMapUnits, const QgsAbstractGeometry *geom, double &value ) const;
62 bool mergeWithNeighbor( const QMap<QString, QgsFeaturePool *> &featurePools, const QString &layerId, QgsFeature &feature, int partIdx, int method, int mergeAttributeIndex, Changes &changes, QString &errMsg ) const;
63
64 const double mAreaThreshold;
65};
66
67#endif // QGS_GEOMETRY_AREA_CHECK_H
@ Polygon
Polygons.
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:58
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition qgsfeedback.h:44
QList< Qgis::GeometryType > compatibleGeometryTypes() const override
A list of geometry types for which this check can be performed.
QgsGeometryAreaCheck(QgsGeometryCheckContext *context, const QVariantMap &configuration)
static QList< Qgis::GeometryType > factoryCompatibleGeometryTypes()
static bool factoryIsCompatible(QgsVectorLayer *layer)
QString description() const override
Returns a human readable description for this check.
static QgsGeometryCheck::CheckType factoryCheckType()
QString id() const override
Returns an id for this check.
QgsGeometryCheck::CheckType checkType() const override
Returns the check type.
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