22#include <QRegularExpression>
23#include <nlohmann/json.hpp>
32 if ( points.isEmpty() )
40 const int pointCount = points.size();
43 const QgsPoint *pointIn = points.data();
44 for (
int i = 0; i < pointCount; ++i, ++pointIn )
52 if ( points.isEmpty() )
60 const int pointCount = points.size();
63 for (
int i = 0; i < pointCount; ++i )
72 const int pointCount = points.size();
76 for (
int i = 0; i < pointCount; ++i, ++pointIn )
85 const int pointCount = std::min( x.size(), y.size() );
88 const double *xIn = x.data();
89 const double *yIn = y.data();
90 const double *zIn =
nullptr;
91 const double *mIn =
nullptr;
92 if ( !z.isEmpty() && z.count() >= pointCount )
97 if ( !m.isEmpty() && m.count() >= pointCount )
103 for (
int i = 0; i < pointCount; ++i )
105 mGeometries[ i ] =
new QgsPoint( *xIn++, *yIn++, zIn ? *zIn++ : std::numeric_limits< double >::quiet_NaN(), mIn ? *mIn++ : std::numeric_limits< double >::quiet_NaN() );
111 return qgsgeometry_cast< QgsPoint * >(
geometryN( index ) );
116 return qgsgeometry_cast< const QgsPoint * >(
geometryN( index ) );
121 return QStringLiteral(
"MultiPoint" );
126 auto result = std::make_unique< QgsMultiPoint >();
128 return result.release();
143 QString collectionWkt( wkt );
145 const thread_local QRegularExpression regex( QStringLiteral(
"^\\s*MultiPoint\\s*[ZM]*\\s*\\(\\s*[-\\d]" ), QRegularExpression::CaseInsensitiveOption );
146 const QRegularExpressionMatch match = regex.match( collectionWkt );
147 if ( match.hasMatch() )
150 collectionWkt.replace(
'(', QLatin1String(
"((" ) ).replace(
')', QLatin1String(
"))" ) ).replace(
',', QLatin1String(
"),(" ) );
164 QDomElement elemMultiPoint = doc.createElementNS( ns, QStringLiteral(
"MultiPoint" ) );
167 return elemMultiPoint;
171 if ( qgsgeometry_cast<const QgsPoint *>( geom ) )
173 QDomElement elemPointMember = doc.createElementNS( ns, QStringLiteral(
"pointMember" ) );
174 elemPointMember.appendChild( geom->asGml2( doc,
precision, ns, axisOrder ) );
175 elemMultiPoint.appendChild( elemPointMember );
179 return elemMultiPoint;
184 QDomElement elemMultiPoint = doc.createElementNS( ns, QStringLiteral(
"MultiPoint" ) );
187 return elemMultiPoint;
191 if ( qgsgeometry_cast<const QgsPoint *>( geom ) )
193 QDomElement elemPointMember = doc.createElementNS( ns, QStringLiteral(
"pointMember" ) );
194 elemPointMember.appendChild( geom->asGml3( doc,
precision, ns, axisOrder ) );
195 elemMultiPoint.appendChild( elemPointMember );
199 return elemMultiPoint;
206 {
"type",
"MultiPoint" },
207 {
"coordinates", json::array() },
228 if ( !qgsgeometry_cast<QgsPoint *>( g ) )
253 if ( !qgsgeometry_cast<QgsPoint *>( g ) )
255 qDeleteAll( geometries );
267 if (
is3D() && !g->is3D() )
269 else if ( !
is3D() && g->is3D() )
273 else if ( !
isMeasure() && g->isMeasure() )
300 if (
id.part < 0 || id.part >=
mGeometries.count() ||
id.vertex != 0 ||
id.ring != 0 )
326 if ( const QgsPoint *point = qgsgeometry_cast< const QgsPoint * >( part ) )
328 if ( !filter( *point ) )
343 } ), mGeometries.end() );
QFlags< GeometryValidityFlag > GeometryValidityFlags
Geometry validity flags.
WkbType
The WKB type describes the number of dimensions a geometry has.
@ MultiPointZ
MultiPointZ.
Abstract base class for all geometries.
virtual bool addZValue(double zValue=0)=0
Adds a z-dimension to the geometry, initialized to a preset value.
virtual bool dropMValue()=0
Drops any measure values which exist in the geometry.
bool isMeasure() const
Returns true if the geometry contains m values.
bool is3D() const
Returns true if the geometry is 3D and contains a z-value.
AxisOrder
Axis order for GML generation.
virtual bool addMValue(double mValue=0)=0
Adds a measure to the geometry, initialized to a preset value.
Qgis::WkbType wkbType() const
Returns the WKB type of the geometry.
void setZMTypeFromSubGeometry(const QgsAbstractGeometry *subggeom, Qgis::WkbType baseGeomType)
Updates the geometry type based on whether sub geometries contain z or m values.
virtual bool dropZValue()=0
Drops any z-dimensions which exist in the geometry.
QVector< QgsAbstractGeometry * > mGeometries
bool fromCollectionWkt(const QString &wkt, const QVector< Qgis::WkbType > &subtypes, const QString &defaultChildWkbType=QString())
Reads a collection from a WKT string.
void clear() override
Clears the geometry, ie reset it to a null geometry.
void clearCache() const override
Clears any cached parameters associated with the geometry, e.g., bounding boxes.
virtual bool insertGeometry(QgsAbstractGeometry *g, int index)
Inserts a geometry before a specified index and takes ownership.
bool isEmpty() const override
Returns true if the geometry is empty.
virtual bool addGeometry(QgsAbstractGeometry *g)
Adds a geometry and takes ownership. Returns true in case of success.
const QgsAbstractGeometry * geometryN(int n) const
Returns a const reference to a geometry from within the collection.
Multi point geometry collection.
QDomElement asGml3(QDomDocument &doc, int precision=17, const QString &ns="gml", QgsAbstractGeometry::AxisOrder axisOrder=QgsAbstractGeometry::AxisOrder::XY) const override
Returns a GML3 representation of the geometry.
QgsMultiPoint * simplifyByDistance(double tolerance) const override
Simplifies the geometry by applying the Douglas Peucker simplification by distance algorithm.
void clear() override
Clears the geometry, ie reset it to a null geometry.
bool addGeometry(QgsAbstractGeometry *g) override
Adds a geometry and takes ownership. Returns true in case of success.
bool insertGeometry(QgsAbstractGeometry *g, int index) override
Inserts a geometry before a specified index and takes ownership.
bool wktOmitChildType() const override
Returns whether child type names are omitted from Wkt representations of the collection.
QgsPoint * pointN(int index)
Returns the point with the specified index.
void filterVertices(const std::function< bool(const QgsPoint &) > &filter) override
Filters the vertices from the geometry in place, removing any which do not return true for the filter...
bool isValid(QString &error, Qgis::GeometryValidityFlags flags=Qgis::GeometryValidityFlags()) const override
Checks validity of the geometry, and returns true if the geometry is valid.
int vertexNumberFromVertexId(QgsVertexId id) const override
Returns the vertex number corresponding to a vertex id.
int nCoordinates() const override
Returns the number of nodes contained in the geometry.
bool fromWkt(const QString &wkt) override
Sets the geometry from a WKT string.
bool addGeometries(const QVector< QgsAbstractGeometry * > &geometries) final
Adds a list of geometries to the collection, transferring ownership to the collection.
QgsAbstractGeometry * boundary() const override
Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the...
double segmentLength(QgsVertexId startVertex) const override
Returns the length of the segment of the geometry which begins at startVertex.
QgsMultiPoint()
Constructor for an empty multipoint geometry.
QgsMultiPoint * toCurveType() const override
Returns the geometry converted to the more generic curve type.
QString geometryType() const override
Returns a unique string representing the geometry type.
json asJsonObject(int precision=17) const override
Returns a json object representation of the geometry.
QgsMultiPoint * clone() const override
Clones the geometry by performing a deep copy.
QDomElement asGml2(QDomDocument &doc, int precision=17, const QString &ns="gml", QgsAbstractGeometry::AxisOrder axisOrder=QgsAbstractGeometry::AxisOrder::XY) const override
Returns a GML2 representation of the geometry.
QgsMultiPoint * createEmptyWithSameType() const override
Creates a new geometry with the same class and same WKB type as the original and transfers ownership.
Point geometry type, with support for z-dimension and m-values.
QgsPoint * clone() const override
Clones the geometry by performing a deep copy.
static Qgis::WkbType zmType(Qgis::WkbType type, bool hasZ, bool hasM)
Returns the modified input geometry type according to hasZ / hasM.
static Qgis::WkbType addM(Qgis::WkbType type)
Adds the m dimension to a WKB type and returns the new type.
static Q_INVOKABLE bool hasZ(Qgis::WkbType type)
Tests whether a WKB type contains the z-dimension.
static Q_INVOKABLE bool hasM(Qgis::WkbType type)
Tests whether a WKB type contains m values.
static Qgis::WkbType flatType(Qgis::WkbType type)
Returns the flat type for a WKB type.
double qgsRound(double number, int places)
Returns a double number, rounded (as close as possible) to the specified number of places.
Utility class for identifying a unique vertex within a geometry.