QGIS API Documentation  3.26.3-Buenos Aires (65e4edfdad)
qgsgeometryholecheck.cpp
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1 /***************************************************************************
2  qgsgeometryholecheck.cpp
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 
17 #include "qgsgeometryholecheck.h"
18 #include "qgscurve.h"
19 #include "qgscurvepolygon.h"
20 #include "qgsfeaturepool.h"
21 #include "qgsgeometrycheckerror.h"
22 
23 void QgsGeometryHoleCheck::collectErrors( const QMap<QString, QgsFeaturePool *> &featurePools, QList<QgsGeometryCheckError *> &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids ) const
24 {
25  Q_UNUSED( messages )
26 
27  const QMap<QString, QgsFeatureIds> featureIds = ids.isEmpty() ? allLayerFeatureIds( featurePools ) : ids.toMap();
28  const QgsGeometryCheckerUtils::LayerFeatures layerFeatures( featurePools, featureIds, compatibleGeometryTypes(), feedback, mContext );
29  for ( const QgsGeometryCheckerUtils::LayerFeature &layerFeature : layerFeatures )
30  {
31  const QgsAbstractGeometry *geom = layerFeature.geometry().constGet();
32  for ( int iPart = 0, nParts = geom->partCount(); iPart < nParts; ++iPart )
33  {
34  const QgsCurvePolygon *poly = dynamic_cast<const QgsCurvePolygon *>( QgsGeometryCheckerUtils::getGeomPart( geom, iPart ) );
35  if ( !poly )
36  {
37  continue;
38  }
39  // Rings after the first one are interiors
40  for ( int iRing = 1, nRings = poly->ringCount( iPart ); iRing < nRings; ++iRing )
41  {
42 
43  const QgsPoint pos = poly->interiorRing( iRing - 1 )->centroid();
44  errors.append( new QgsGeometryCheckError( this, layerFeature, pos, QgsVertexId( iPart, iRing ) ) );
45  }
46  }
47  }
48 }
49 
50 void QgsGeometryHoleCheck::fixError( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryCheckError *error, int method, const QMap<QString, int> & /*mergeAttributeIndices*/, Changes &changes ) const
51 {
52  QgsFeaturePool *featurePool = featurePools[ error->layerId() ];
53  QgsFeature feature;
54  if ( !featurePool->getFeature( error->featureId(), feature ) )
55  {
56  error->setObsolete();
57  return;
58  }
59  const QgsGeometry featureGeom = feature.geometry();
60  const QgsAbstractGeometry *geom = featureGeom.constGet();
61  const QgsVertexId vidx = error->vidx();
62 
63  // Check if ring still exists
64  if ( !vidx.isValid( geom ) )
65  {
66  error->setObsolete();
67  return;
68  }
69 
70  // Fix error
71  if ( method == NoChange )
72  {
73  error->setFixed( method );
74  }
75  else if ( method == RemoveHoles )
76  {
77  deleteFeatureGeometryRing( featurePools, error->layerId(), feature, vidx.part, vidx.ring, changes );
78  error->setFixed( method );
79  }
80  else
81  {
82  error->setFixFailed( tr( "Unknown method" ) );
83  }
84 }
85 
87 {
88  static const QStringList methods = QStringList() << tr( "Remove hole" ) << tr( "No action" );
89  return methods;
90 }
QgsVertexId::part
int part
Part number.
Definition: qgsvertexid.h:89
QgsGeometryCheckError::setFixFailed
void setFixFailed(const QString &reason)
Set the error status to failed and specify the reason for failure.
Definition: qgsgeometrycheckerror.cpp:109
QgsGeometryCheckerUtils::getGeomPart
static QgsAbstractGeometry * getGeomPart(QgsAbstractGeometry *geom, int partIdx)
Definition: qgsgeometrycheckerutils.cpp:268
QgsPoint
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:48
QgsGeometryCheckError::setObsolete
void setObsolete()
Set the error status to obsolete.
Definition: qgsgeometrycheckerror.h:166
QgsGeometryCheckError::featureId
QgsFeatureId featureId() const
The id of the feature on which this error has been detected.
Definition: qgsgeometrycheckerror.h:90
QgsCurvePolygon
Curve polygon geometry type.
Definition: qgscurvepolygon.h:34
QgsGeometryCheck::Changes
QMap< QString, QMap< QgsFeatureId, QList< QgsGeometryCheck::Change > > > Changes
A collection of changes.
Definition: qgsgeometrycheck.h:220
QgsGeometryCheck::allLayerFeatureIds
QMap< QString, QgsFeatureIds > allLayerFeatureIds(const QMap< QString, QgsFeaturePool * > &featurePools) const
Returns all layers and feature ids.
Definition: qgsgeometrycheck.cpp:82
QgsGeometryCheck::LayerFeatureIds::isEmpty
bool isEmpty() const
Definition: qgsgeometrycheck.h:117
QgsFeature::geometry
QgsGeometry geometry
Definition: qgsfeature.h:71
QgsGeometryHoleCheck::fixError
void fixError(const QMap< QString, QgsFeaturePool * > &featurePools, QgsGeometryCheckError *error, int method, const QMap< QString, int > &mergeAttributeIndices, Changes &changes) const override
Fixes the error error with the specified method.
Definition: qgsgeometryholecheck.cpp:50
QgsGeometryHoleCheck::resolutionMethods
Q_DECL_DEPRECATED QStringList resolutionMethods() const override
Returns a list of descriptions for available resolutions for errors.
Definition: qgsgeometryholecheck.cpp:86
QgsAbstractGeometry::partCount
virtual int partCount() const =0
Returns count of parts contained in the geometry.
qgsgeometrycheckerror.h
QgsFeaturePool::getFeature
bool getFeature(QgsFeatureId id, QgsFeature &feature)
Retrieves the feature with the specified id into feature.
Definition: qgsfeaturepool.cpp:41
QgsGeometryCheck::LayerFeatureIds::toMap
QMap< QString, QgsFeatureIds > toMap() const
Definition: qgsgeometrycheck.h:112
qgsfeaturepool.h
qgsgeometrycheckcontext.h
QgsGeometryHoleCheck::collectErrors
void collectErrors(const QMap< QString, QgsFeaturePool * > &featurePools, QList< QgsGeometryCheckError * > &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids=LayerFeatureIds()) const override
The main worker method.
Definition: qgsgeometryholecheck.cpp:23
QgsGeometryCheckError::setFixed
void setFixed(int method)
Set the status to fixed and specify the method that has been used to fix the error.
Definition: qgsgeometrycheckerror.cpp:98
QgsGeometryCheck::deleteFeatureGeometryRing
void deleteFeatureGeometryRing(const QMap< QString, QgsFeaturePool * > &featurePools, const QString &layerId, QgsFeature &feature, int partIdx, int ringIdx, Changes &changes) const
Deletes a ring in a feature geometry.
Definition: qgsgeometrycheck.cpp:142
QgsFeedback
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition: qgsfeedback.h:44
QgsGeometryCheckerUtils::LayerFeature
A layer feature combination to uniquely identify and access a feature in a set of layers.
Definition: qgsgeometrycheckerutils.h:51
QgsGeometryHoleCheck::RemoveHoles
@ RemoveHoles
Definition: qgsgeometryholecheck.h:46
QgsGeometryHoleCheck::NoChange
@ NoChange
Definition: qgsgeometryholecheck.h:46
QgsGeometryCheck::LayerFeatureIds
A list of layers and feature ids for each of these layers.
Definition: qgsgeometrycheck.h:104
QgsCurvePolygon::ringCount
int ringCount(int part=0) const override SIP_HOLDGIL
Returns the number of rings of which this geometry is built.
Definition: qgscurvepolygon.cpp:1254
QgsCurvePolygon::interiorRing
const QgsCurve * interiorRing(int i) const SIP_HOLDGIL
Retrieves an interior ring from the curve polygon.
Definition: qgscurvepolygon.h:122
QgsGeometryCheckError::vidx
const QgsVertexId & vidx() const
The id of the affected vertex.
Definition: qgsgeometrycheckerror.h:140
qgscurvepolygon.h
QgsGeometry::constGet
const QgsAbstractGeometry * constGet() const SIP_HOLDGIL
Returns a non-modifiable (const) reference to the underlying abstract geometry primitive.
Definition: qgsgeometry.cpp:136
QgsAbstractGeometry
Abstract base class for all geometries.
Definition: qgsabstractgeometry.h:79
QgsGeometryCheck::mContext
const QgsGeometryCheckContext * mContext
Definition: qgsgeometrycheck.h:365
QgsVertexId::isValid
bool isValid() const SIP_HOLDGIL
Returns true if the vertex id is valid.
Definition: qgsvertexid.h:46
QgsGeometryHoleCheck::compatibleGeometryTypes
QList< QgsWkbTypes::GeometryType > compatibleGeometryTypes() const override
A list of geometry types for which this check can be performed.
Definition: qgsgeometryholecheck.h:35
QgsAbstractGeometry::centroid
virtual QgsPoint centroid() const
Returns the centroid of the geometry.
Definition: qgsabstractgeometry.cpp:201
qgscurve.h
QgsGeometry
A geometry is the spatial representation of a feature.
Definition: qgsgeometry.h:124
QgsGeometryCheckerUtils::LayerFeatures
Contains a set of layers and feature ids in those layers to pass to a geometry check.
Definition: qgsgeometrycheckerutils.h:112
QgsVertexId
Utility class for identifying a unique vertex within a geometry.
Definition: qgsvertexid.h:30
qgsgeometryholecheck.h
QgsVertexId::ring
int ring
Ring number.
Definition: qgsvertexid.h:92
QgsFeature
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:55
QgsGeometryCheckError::layerId
const QString & layerId() const
The id of the layer on which this error has been detected.
Definition: qgsgeometrycheckerror.h:85
QgsGeometryCheckError
This represents an error reported by a geometry check.
Definition: qgsgeometrycheckerror.h:35
QgsFeaturePool
A feature pool is based on a vector layer and caches features.
Definition: qgsfeaturepool.h:37