27#include <nlohmann/json.hpp>
36 return qgsgeometry_cast< QgsCurve * >(
geometryN( index ) );
41 return qgsgeometry_cast< const QgsCurve * >(
geometryN( index ) );
46 return QStringLiteral(
"MultiCurve" );
51 auto result = std::make_unique< QgsMultiCurve >();
53 return result.release();
76 QStringLiteral(
"LineString" ) );
82 QDomElement elemMultiLineString = doc.createElementNS( ns, QStringLiteral(
"MultiLineString" ) );
85 return elemMultiLineString;
89 if ( qgsgeometry_cast<const QgsCurve *>( geom ) )
91 std::unique_ptr< QgsLineString > lineString(
static_cast<const QgsCurve *
>( geom )->curveToLine() );
93 QDomElement elemLineStringMember = doc.createElementNS( ns, QStringLiteral(
"lineStringMember" ) );
94 elemLineStringMember.appendChild( lineString->asGml2( doc,
precision, ns, axisOrder ) );
95 elemMultiLineString.appendChild( elemLineStringMember );
99 return elemMultiLineString;
104 QDomElement elemMultiCurve = doc.createElementNS( ns, QStringLiteral(
"MultiCurve" ) );
107 return elemMultiCurve;
111 if ( qgsgeometry_cast<const QgsCurve *>( geom ) )
115 QDomElement elemCurveMember = doc.createElementNS( ns, QStringLiteral(
"curveMember" ) );
116 elemCurveMember.appendChild( curve->
asGml3( doc,
precision, ns, axisOrder ) );
117 elemMultiCurve.appendChild( elemCurveMember );
121 return elemMultiCurve;
126 json coordinates( json::array( ) );
129 if ( qgsgeometry_cast<const QgsCurve *>( geom ) )
131 std::unique_ptr< QgsLineString > lineString(
static_cast<const QgsCurve *
>( geom )->curveToLine() );
133 lineString->points( pts );
139 {
"type",
"MultiLineString" },
140 {
"coordinates", coordinates }
146 if ( !qgsgeometry_cast<QgsCurve *>( g ) )
172 if ( !qgsgeometry_cast<QgsCurve *>( g ) )
174 qDeleteAll( geometries );
186 if (
is3D() && !g->is3D() )
188 else if ( !
is3D() && g->is3D() )
192 else if ( !
isMeasure() && g->isMeasure() )
203 if ( !g || !qgsgeometry_cast<QgsCurve *>( g ) )
214 std::unique_ptr< QgsMultiCurve > res = std::make_unique< QgsMultiCurve >();
218 res->addGeometry(
mGeometries.at( i )->simplifyByDistance( tolerance ) );
220 return res.release();
229 if ( qgsgeometry_cast<const QgsCurve *>( geom ) )
234 return reversedMultiCurve;
239 std::unique_ptr< QgsMultiPoint > multiPoint(
new QgsMultiPoint() );
245 if ( !curve->isClosed() )
247 multiPoint->addGeometry(
new QgsPoint( curve->startPoint() ) );
248 multiPoint->addGeometry(
new QgsPoint( curve->endPoint() ) );
252 if ( multiPoint->numGeometries() == 0 )
256 return multiPoint.release();
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.
void setZMTypeFromSubGeometry(const QgsAbstractGeometry *subggeom, Qgis::WkbType baseGeomType)
Updates the geometry type based on whether sub geometries contain z or m values.
virtual QDomElement asGml3(QDomDocument &doc, int precision=17, const QString &ns="gml", AxisOrder axisOrder=QgsAbstractGeometry::AxisOrder::XY) const =0
Returns a GML3 representation of the geometry.
virtual bool dropZValue()=0
Drops any z-dimensions which exist in the geometry.
Circular string geometry type.
Compound curve geometry type.
Abstract base class for curved geometry type.
virtual QgsCurve * reversed() const =0
Returns a reversed copy of the curve, where the direction of the curve has been flipped.
QVector< QgsAbstractGeometry * > mGeometries
void clear() override
Clears the geometry, ie reset it to a null geometry.
void reserve(int size)
Attempts to allocate memory for at least size geometries.
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.
bool fromCollectionWkt(const QString &wkt, const QVector< QgsAbstractGeometry * > &subtypes, const QString &defaultChildWkbType=QString())
Reads a collection from a WKT string.
const QgsAbstractGeometry * geometryN(int n) const
Returns a const reference to a geometry from within the collection.
static json pointsToJson(const QgsPointSequence &points, int precision)
Returns coordinates as json object.
Line string geometry type, with support for z-dimension and m-values.
Multi curve geometry collection.
QString geometryType() const override
Returns a unique string representing the geometry type.
QgsMultiCurve * reversed() const
Returns a copy of the multi curve, where each component curve has had its line direction reversed.
json asJsonObject(int precision=17) const override
Returns a json object representation of the geometry.
QgsMultiCurve * simplifyByDistance(double tolerance) const override
Simplifies the geometry by applying the Douglas Peucker simplification by distance algorithm.
QgsMultiCurve * toCurveType() const override
Returns the geometry converted to the more generic curve type.
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.
QgsAbstractGeometry * boundary() const override
Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the...
bool insertGeometry(QgsAbstractGeometry *g, int index) override
Inserts a geometry before a specified index and takes ownership.
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.
QgsMultiCurve * createEmptyWithSameType() const override
Creates a new geometry with the same class and same WKB type as the original and transfers ownership.
bool addGeometry(QgsAbstractGeometry *g) override
Adds a geometry and takes ownership. Returns true in case of success.
bool addGeometries(const QVector< QgsAbstractGeometry * > &geometries) override
Adds a list of geometries to the collection, transferring ownership to the collection.
bool fromWkt(const QString &wkt) override
Sets the geometry from a WKT string.
QgsMultiCurve * clone() const override
Clones the geometry by performing a deep copy.
void clear() override
Clears the geometry, ie reset it to a null geometry.
QgsCurve * curveN(int index)
Returns the curve with the specified index.
Multi point geometry collection.
Point geometry type, with support for z-dimension and m-values.
QVector< QgsPoint > QgsPointSequence