QGIS API Documentation 3.27.0-Master (9c08adf5ef)
qgsgeometrypointinpolygoncheck.cpp
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1/***************************************************************************
2 qgsgeometrypointinpolygoncheck.cpp
3 ---------------------
4 begin : June 2017
5 copyright : (C) 2017 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
18#include "qgspolygon.h"
19#include "qgsgeometryengine.h"
21
22void QgsGeometryPointInPolygonCheck::collectErrors( const QMap<QString, QgsFeaturePool *> &featurePools, QList<QgsGeometryCheckError *> &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids ) const
23{
24 const QMap<QString, QgsFeatureIds> featureIds = ids.isEmpty() ? allLayerFeatureIds( featurePools ) : ids.toMap();
25 const QgsGeometryCheckerUtils::LayerFeatures layerFeatures( featurePools, featureIds, compatibleGeometryTypes(), feedback, mContext, true );
26 for ( const QgsGeometryCheckerUtils::LayerFeature &layerFeature : layerFeatures )
27 {
28 const QgsAbstractGeometry *geom = layerFeature.geometry().constGet();
29 for ( int iPart = 0, nParts = geom->partCount(); iPart < nParts; ++iPart )
30 {
31 const QgsPoint *point = dynamic_cast<const QgsPoint *>( QgsGeometryCheckerUtils::getGeomPart( geom, iPart ) );
32 if ( !point )
33 {
34 // Should not happen
35 continue;
36 }
37 int nTested = 0;
38 int nInside = 0;
39
40 // Check whether point is contained by a fully contained by a polygon
41 const QgsRectangle rect( point->x() - mContext->tolerance, point->y() - mContext->tolerance,
42 point->x() + mContext->tolerance, point->y() + mContext->tolerance );
43 const QgsGeometryCheckerUtils::LayerFeatures checkFeatures( featurePools, featureIds.keys(), rect, {QgsWkbTypes::PolygonGeometry}, mContext );
44 for ( const QgsGeometryCheckerUtils::LayerFeature &checkFeature : checkFeatures )
45 {
46 ++nTested;
47 const QgsAbstractGeometry *testGeom = checkFeature.geometry().constGet();
48 std::unique_ptr< QgsGeometryEngine > testGeomEngine = QgsGeometryCheckerUtils::createGeomEngine( testGeom, mContext->reducedTolerance );
49 if ( !testGeomEngine->isValid() )
50 {
51 messages.append( tr( "Point in polygon check failed for (%1): the geometry is invalid" ).arg( checkFeature.id() ) );
52 continue;
53 }
54 if ( testGeomEngine->contains( point ) && !testGeomEngine->touches( point ) )
55 {
56 ++nInside;
57 }
58 }
59 if ( nTested == 0 || nTested != nInside )
60 {
61 errors.append( new QgsGeometryCheckError( this, layerFeature, *point, QgsVertexId( iPart, 0, 0 ) ) );
62 }
63 }
64 }
65}
66
67void QgsGeometryPointInPolygonCheck::fixError( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryCheckError *error, int method, const QMap<QString, int> & /*mergeAttributeIndices*/, Changes & /*changes*/ ) const
68{
69 Q_UNUSED( featurePools )
70
71 if ( method == NoChange )
72 {
73 error->setFixed( method );
74 }
75 else
76 {
77 error->setFixFailed( tr( "Unknown method" ) );
78 }
79}
80
82{
83 static const QStringList methods = QStringList() << tr( "No action" );
84 return methods;
85}
86
88{
90}
Abstract base class for all geometries.
virtual int partCount() const =0
Returns count of parts contained in the geometry.
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Definition: qgsfeedback.h:45
const double reducedTolerance
The tolerance to allow for in geometry checks.
const double tolerance
The tolerance to allow for in geometry checks.
This represents an error reported by a geometry check.
void setFixed(int method)
Set the status to fixed and specify the method that has been used to fix the error.
void setFixFailed(const QString &reason)
Set the error status to failed and specify the reason for failure.
QMap< QString, QMap< QgsFeatureId, QList< QgsGeometryCheck::Change > > > Changes
A collection of changes.
const QgsGeometryCheckContext * mContext
CheckType
The type of a check.
@ FeatureNodeCheck
The check controls individual nodes.
QMap< QString, QgsFeatureIds > allLayerFeatureIds(const QMap< QString, QgsFeaturePool * > &featurePools) const
Returns all layers and feature ids.
A layer feature combination to uniquely identify and access a feature in a set of layers.
Contains a set of layers and feature ids in those layers to pass to a geometry check.
static std::unique_ptr< QgsGeometryEngine > createGeomEngine(const QgsAbstractGeometry *geometry, double tolerance)
static QgsAbstractGeometry * getGeomPart(QgsAbstractGeometry *geom, int partIdx)
static QgsGeometryCheck::CheckType factoryCheckType()
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.
void collectErrors(const QMap< QString, QgsFeaturePool * > &featurePools, QList< QgsGeometryCheckError * > &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids=LayerFeatureIds()) const override
The main worker method.
QList< QgsWkbTypes::GeometryType > compatibleGeometryTypes() const override
A list of geometry types for which this check can be performed.
Q_DECL_DEPRECATED QStringList resolutionMethods() const override
Returns a list of descriptions for available resolutions for errors.
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:49
Q_GADGET double x
Definition: qgspoint.h:52
double y
Definition: qgspoint.h:53
A rectangle specified with double values.
Definition: qgsrectangle.h:42
A list of layers and feature ids for each of these layers.
QMap< QString, QgsFeatureIds > toMap() const
Utility class for identifying a unique vertex within a geometry.
Definition: qgsvertexid.h:31