QGIS API Documentation 3.38.0-Grenoble (exported)
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qgsgeometrygapcheck.h
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1/***************************************************************************
2 qgsgeometrygapcheck.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_GAP_CHECK_H
19#define QGS_GEOMETRY_GAP_CHECK_H
20
21#include "qgsgeometrycheck.h"
23#include "qgsfeatureid.h"
24
31class ANALYSIS_EXPORT QgsGeometryGapCheckError : public QgsGeometryCheckError
32{
33 public:
34
42 const QString &layerId,
43 const QgsGeometry &geometry,
44 const QMap<QString, QgsFeatureIds> &neighbors,
45 double area,
46 const QgsRectangle &gapAreaBBox,
47 const QgsRectangle &contextArea )
48 : QgsGeometryCheckError( check, layerId, FID_NULL, geometry, geometry.constGet()->centroid(), QgsVertexId(), area, ValueArea )
49 , mNeighbors( neighbors )
50 , mGapAreaBBox( gapAreaBBox )
51 , mContextBoundingBox( contextArea )
52 {
53 }
54
55 QgsRectangle contextBoundingBox() const override;
56
60 const QMap<QString, QgsFeatureIds> &neighbors() const { return mNeighbors; }
61
62 bool isEqual( QgsGeometryCheckError *other ) const override;
63
64 bool closeMatch( QgsGeometryCheckError *other ) const override;
65
66 void update( const QgsGeometryCheckError *other ) override;
67
68 bool handleChanges( const QgsGeometryCheck::Changes & /*changes*/ ) override;
69
70 QgsRectangle affectedAreaBBox() const override;
71
72 QMap<QString, QgsFeatureIds > involvedFeatures() const override;
73
74 QIcon icon() const override;
75
76 private:
77 QMap<QString, QgsFeatureIds> mNeighbors;
78 QgsRectangle mGapAreaBBox;
79 QgsRectangle mContextBoundingBox;
80};
81
82
89class ANALYSIS_EXPORT QgsGeometryGapCheck : public QgsGeometryCheck
90{
91 Q_GADGET
92 Q_DECLARE_TR_FUNCTIONS( QgsGeometryGapCheck )
93
94 public:
104 Q_ENUM( ResolutionMethod )
105
106
112 explicit QgsGeometryGapCheck( const QgsGeometryCheckContext *context, const QVariantMap &configuration );
113
114 void prepare( const QgsGeometryCheckContext *context, const QVariantMap &configuration ) override;
115
116 QList<Qgis::GeometryType> compatibleGeometryTypes() const override { return factoryCompatibleGeometryTypes(); }
117 void collectErrors( const QMap<QString, QgsFeaturePool *> &featurePools, QList<QgsGeometryCheckError *> &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids = LayerFeatureIds() ) const override;
118 void fixError( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryCheckError *error, int method, const QMap<QString, int> &mergeAttributeIndices, Changes &changes ) const override;
119 Q_DECL_DEPRECATED QStringList resolutionMethods() const override;
120
121 QList<QgsGeometryCheckResolutionMethod> availableResolutionMethods() const override;
122
123 QString description() const override;
124 QString id() const override;
125 QgsGeometryCheck::Flags flags() const override;
126 QgsGeometryCheck::CheckType checkType() const override { return factoryCheckType(); }
127
129 static QString factoryDescription() SIP_SKIP;
130 static QString factoryId() SIP_SKIP;
131 static QgsGeometryCheck::Flags factoryFlags() SIP_SKIP;
132 static QList<Qgis::GeometryType> factoryCompatibleGeometryTypes() SIP_SKIP;
133 static bool factoryIsCompatible( QgsVectorLayer *layer ) SIP_SKIP;
134 static QgsGeometryCheck::CheckType factoryCheckType() SIP_SKIP;
136
137 private:
138 enum Condition
139 {
140 LongestSharedEdge,
141 LargestArea
142 };
143
144 bool mergeWithNeighbor( const QMap<QString, QgsFeaturePool *> &featurePools,
145 QgsGeometryGapCheckError *err, Changes &changes, QString &errMsg, Condition condition ) const;
146
147 const double mGapThresholdMapUnits;
148 QgsWeakMapLayerPointer mAllowedGapsLayer;
149 std::unique_ptr<QgsVectorLayerFeatureSource> mAllowedGapsSource;
150 double mAllowedGapsBuffer = 0;
151
152};
153
154#endif // QGS_GEOMETRY_GAP_CHECK_H
The Qgis class provides global constants for use throughout the application.
Definition qgis.h:54
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition qgsfeedback.h:44
Base configuration for geometry checks.
This represents an error reported by a geometry check.
virtual QMap< QString, QgsFeatureIds > involvedFeatures() const
Returns a list of involved features.
virtual void update(const QgsGeometryCheckError *other)
Update this error with the information from other.
virtual QString description() const
The error description.
virtual bool isEqual(QgsGeometryCheckError *other) const
Check if this error is equal to other.
virtual bool closeMatch(QgsGeometryCheckError *) const
Check if this error is almost equal to other.
virtual QgsRectangle affectedAreaBBox() const
The bounding box of the affected area of the error.
virtual QIcon icon() const
Returns an icon that should be shown for this kind of error.
virtual bool handleChanges(const QgsGeometryCheck::Changes &changes)
Apply a list of changes.
virtual QgsRectangle contextBoundingBox() const
The context of the error.
This class implements a geometry check.
QMap< QString, QMap< QgsFeatureId, QList< QgsGeometryCheck::Change > > > Changes
A collection of changes.
QFlags< Flag > Flags
CheckType
The type of a check.
An error produced by a QgsGeometryGapCheck.
QgsGeometryGapCheckError(const QgsGeometryCheck *check, const QString &layerId, const QgsGeometry &geometry, const QMap< QString, QgsFeatureIds > &neighbors, double area, const QgsRectangle &gapAreaBBox, const QgsRectangle &contextArea)
Create a new gap check error produced by check on the layer layerId.
const QMap< QString, QgsFeatureIds > & neighbors() const
A map of layers and feature ids of the neighbors of the gap.
Checks for gaps between neighbouring polygons.
QgsGeometryCheck::CheckType checkType() const override
Returns the check type.
ResolutionMethod
Resolution methods for geometry gap checks.
@ CreateNewFeature
Create a new feature with the gap geometry.
@ AddToAllowedGaps
Add gap geometry to allowed gaps layer.
@ MergeLongestEdge
Merge the gap with the polygon with the longest shared edge.
@ NoChange
Do not handle the error.
@ MergeLargestArea
Merge with neighbouring polygon with largest area.
QList< Qgis::GeometryType > compatibleGeometryTypes() const override
A list of geometry types for which this check can be performed.
A geometry is the spatial representation of a feature.
A rectangle specified with double values.
Represents a vector layer which manages a vector based data sets.
#define SIP_SKIP
Definition qgis_sip.h:126
void CPL_STDCALL collectErrors(CPLErr, int, const char *msg)
#define FID_NULL
QPointer< QgsMapLayer > QgsWeakMapLayerPointer
Weak pointer for QgsMapLayer.
Utility class for identifying a unique vertex within a geometry.
Definition qgsvertexid.h:30