40 for (
int i = 0; i < nGeoms; ++i )
54 for (
int i = 0; i < nGeoms; ++i )
70 if ( !otherCollection )
95 auto result = qgis::make_unique< QgsGeometryCollection >();
97 return result.release();
114 std::unique_ptr<QgsGeometryCollection> result;
118 std::unique_ptr<QgsAbstractGeometry> gridified { geom->
snappedToGrid( hSpacing, vSpacing, dSpacing, mSpacing ) };
128 return result.release();
136 result = result || geom->removeDuplicateNodes( epsilon, useZValues );
155 mGeometries.at( vertex.
part )->adjacentVertices( vertex, previousVertex, nextVertex );
160 if (
id.part < 0 || id.part >=
mGeometries.count() )
167 if ( part ==
id.part )
169 int partNumber = geometry->vertexNumberFromVertexId(
QgsVertexId( 0,
id.ring,
id.vertex ) );
170 if ( partNumber == -1 )
172 return number + partNumber;
176 number += geometry->nCoordinates();
207 if ( !geometry->isEmpty() )
254 QVector< QgsAbstractGeometry * >::const_iterator it =
mGeometries.constBegin();
257 int dim = ( *it )->dimension();
268 return QStringLiteral(
"GeometryCollection" );
275 g->transform( ct, d, transformZ );
284 g->transform( t, zTranslate, zScale, mTranslate, mScale );
291 QVector< QgsAbstractGeometry * >::const_iterator it =
mGeometries.constBegin();
312 wkbPtr >> nGeometries;
314 QVector<QgsAbstractGeometry *> geometryListBackup =
mGeometries;
316 for (
int i = 0; i < nGeometries; ++i )
329 qDeleteAll( geometryListBackup );
348 int binarySize =
sizeof( char ) +
sizeof( quint32 ) +
sizeof( quint32 );
349 QVector<QByteArray> wkbForGeometries;
354 QByteArray wkb( geom->asWkb() );
355 binarySize += wkb.length();
356 wkbForGeometries << wkb;
361 wkbArray.resize( binarySize );
364 wkb << static_cast<quint32>(
wkbType() );
365 wkb << static_cast<quint32>( wkbForGeometries.count() );
366 for (
const QByteArray &wkbForGeometry : qgis::as_const( wkbForGeometries ) )
368 wkb << wkbForGeometry;
378 QString childWkt = geom->asWkt( precision );
381 childWkt = childWkt.mid( childWkt.indexOf(
'(' ) );
383 wkt += childWkt +
',';
385 if ( wkt.endsWith(
',' ) )
395 QDomElement elemMultiGeometry = doc.createElementNS( ns, QStringLiteral(
"MultiGeometry" ) );
398 QDomElement elemGeometryMember = doc.createElementNS( ns, QStringLiteral(
"geometryMember" ) );
399 elemGeometryMember.appendChild( geom->asGml2( doc, precision, ns ) );
400 elemMultiGeometry.appendChild( elemGeometryMember );
402 return elemMultiGeometry;
407 QDomElement elemMultiGeometry = doc.createElementNS( ns, QStringLiteral(
"MultiGeometry" ) );
410 QDomElement elemGeometryMember = doc.createElementNS( ns, QStringLiteral(
"geometryMember" ) );
411 elemGeometryMember.appendChild( geom->asGml3( doc, precision, ns ) );
412 elemMultiGeometry.appendChild( elemGeometryMember );
414 return elemMultiGeometry;
419 QString json = QStringLiteral(
"{\"type\": \"GeometryCollection\", \"geometries\": [" );
422 json += geom->asJson( precision ) +
", ";
424 if ( json.endsWith( QLatin1String(
", " ) ) )
428 json += QLatin1String(
"] }" );
434 if ( mBoundingBox.
isNull() )
466 QVector< QgsAbstractGeometry * >::const_iterator geomIt =
mGeometries.constBegin();
467 for ( ; geomIt !=
mGeometries.constEnd(); ++geomIt )
471 QgsCoordinateSequence::const_iterator cIt = geomCoords.constBegin();
472 for ( ; cIt != geomCoords.constEnd(); ++cIt )
474 sequence.push_back( *cIt );
485 QVector< QgsAbstractGeometry * >::const_iterator geomIt =
mGeometries.constBegin();
486 for ( ; geomIt !=
mGeometries.constEnd(); ++geomIt )
488 count += ( *geomIt )->nCoordinates();
527 return mGeometries.at(
id.part )->nextVertex(
id, vertex );
537 bool success =
mGeometries.at( position.
part )->insertVertex( position, vertex );
552 bool success =
mGeometries.at( position.
part )->moveVertex( position, newPos );
591 QVector< QgsAbstractGeometry * >::const_iterator geomIt =
mGeometries.constBegin();
592 for ( ; geomIt !=
mGeometries.constEnd(); ++geomIt )
594 length += ( *geomIt )->length();
602 QVector< QgsAbstractGeometry * >::const_iterator geomIt =
mGeometries.constBegin();
603 for ( ; geomIt !=
mGeometries.constEnd(); ++geomIt )
605 area += ( *geomIt )->area();
613 QVector< QgsAbstractGeometry * >::const_iterator geomIt =
mGeometries.constBegin();
614 for ( ; geomIt !=
mGeometries.constEnd(); ++geomIt )
616 perimeter += ( *geomIt )->perimeter();
629 qDeleteAll( subtypes );
634 QString defChildWkbType = QStringLiteral(
"%1%2%3 " ).arg( defaultChildWkbType,
is3D() ?
"Z" :
"",
isMeasure() ?
"M" :
"" );
637 for (
const QString &childWkt : blocks )
641 bool success =
false;
657 qDeleteAll( subtypes );
661 qDeleteAll( subtypes );
669 hasZ = hasZ || geom->is3D();
670 hasM = hasM || geom->isMeasure();
684 QVector< QgsAbstractGeometry * >::const_iterator it =
mGeometries.constBegin();
687 if ( ( *it )->hasCurvedSegments() )
699 if ( !geomCollection )
704 QVector< QgsAbstractGeometry * >::const_iterator geomIt =
mGeometries.constBegin();
705 for ( ; geomIt !=
mGeometries.constEnd(); ++geomIt )
707 geomCollection->
addGeometry( ( *geomIt )->segmentize( tolerance, toleranceType ) );
709 return geom.release();
783 geom->addZValue( zValue );
798 geom->addMValue( mValue );
838 newCollection->addGeometry( geom->toCurveType() );
840 return newCollection.release();
bool isMeasure() const
Returns true if the geometry contains m values.
static std::unique_ptr< QgsAbstractGeometry > geomFromWkb(QgsConstWkbPtr &wkb)
Construct geometry from a WKB string.
QDomElement asGml2(QDomDocument &doc, int precision=17, const QString &ns="gml") const override
Returns a GML2 representation of the geometry.
virtual bool removeGeometry(int nr)
Removes a geometry from the collection.
bool nextVertex(QgsVertexId &id, QgsPoint &vertex) const override
Returns next vertex id and coordinates.
bool dropZValue() override
Drops any z-dimensions which exist in the geometry.
A rectangle specified with double values.
bool operator!=(const QgsAbstractGeometry &other) const override
virtual bool isEmpty() const
Returns true if the geometry is empty.
static std::unique_ptr< QgsAbstractGeometry > geomFromWkbType(QgsWkbTypes::Type t)
Return empty geometry from wkb type.
virtual bool deleteVertex(QgsVertexId position)=0
Deletes a vertex within the geometry.
bool fromWkb(QgsConstWkbPtr &wkb) override
Sets the geometry from a WKB string.
bool operator==(const QgsAbstractGeometry &other) const override
void clear() override
Clears the geometry, ie reset it to a null geometry.
bool addZValue(double zValue=0) override
Adds a z-dimension to the geometry, initialized to a preset value.
QgsAbstractGeometry & operator=(const QgsAbstractGeometry &geom)
Multi point geometry collection.
static QPair< QgsWkbTypes::Type, QString > wktReadBlock(const QString &wkt)
Parses a WKT block of the format "TYPE( contents )" and returns a pair of geometry type to contents (...
QgsGeometryCollection * snappedToGrid(double hSpacing, double vSpacing, double dSpacing=0, double mSpacing=0) const override
Makes a new geometry with all the points or vertices snapped to the closest point of the grid...
QVector< QgsRingSequence > QgsCoordinateSequence
bool fromWkt(const QString &wkt) override
Sets the geometry from a WKT string.
bool hasCurvedSegments() const override
Returns true if the geometry contains curved segments.
virtual double vertexAngle(QgsVertexId vertex) const =0
Returns approximate angle at a vertex.
Multi line string geometry collection.
Curve polygon geometry type.
double closestSegment(const QgsPoint &pt, QgsPoint &segmentPt, QgsVertexId &vertexAfter, int *leftOf=nullptr, double epsilon=4 *DBL_EPSILON) const override
Searches for the closest segment of the geometry to a given point.
bool insertVertex(QgsVertexId position, const QgsPoint &vertex) override
Inserts a vertex into the geometry.
QgsAbstractGeometry * boundary() const override
Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the...
virtual bool wktOmitChildType() const
Returns whether child type names are omitted from Wkt representations of the collection.
SegmentationToleranceType
Segmentation tolerance as maximum angle or maximum difference between approximation and circle...
double segmentLength(QgsVertexId startVertex) const override
Returns the length of the segment of the geometry which begins at startVertex.
QgsGeometryCollection & operator=(const QgsGeometryCollection &c)
virtual bool nextVertex(QgsVertexId &id, QgsPoint &vertex) const =0
Returns next vertex id and coordinates.
bool removeDuplicateNodes(double epsilon=4 *DBL_EPSILON, bool useZValues=false) override
Removes duplicate nodes from the geometry, wherever removing the nodes does not result in a degenerat...
bool dropMValue() override
Drops any measure values which exist in the geometry.
static endian_t endian()
Returns whether this machine uses big or little endian.
static bool hasZ(Type type)
Tests whether a WKB type contains the z-dimension.
static QStringList wktGetChildBlocks(const QString &wkt, const QString &defaultType=QString())
Parses a WKT string and returns of list of blocks contained in the WKT.
static Type dropM(Type type)
Drops the m dimension (if present) for a WKB type and returns the new type.
Multi surface geometry collection.
double length() const override
Returns the length of the geometry.
QString asJson(int precision=17) const override
Returns a GeoJSON representation of the geometry.
QgsWkbTypes::Type mWkbType
virtual bool insertGeometry(QgsAbstractGeometry *g, int index)
Inserts a geometry before a specified index and takes ownership.
QString wktTypeStr() const
Returns the WKT type string of the geometry.
bool isEmpty() const override
Returns true if the geometry is empty.
void adjacentVertices(QgsVertexId vertex, QgsVertexId &previousVertex, QgsVertexId &nextVertex) const override
Returns the vertices adjacent to a specified vertex within a geometry.
int nCoordinates() const override
Returns the number of nodes contained in the geometry.
Type
The WKB type describes the number of dimensions a geometry has.
bool addMValue(double mValue=0) override
Adds a measure to the geometry, initialized to a preset value.
QDomElement asGml3(QDomDocument &doc, int precision=17, const QString &ns="gml") const override
Returns a GML3 representation of the geometry.
virtual void clearCache() const
Clears any cached parameters associated with the geometry, e.g., bounding boxes.
virtual double segmentLength(QgsVertexId startVertex) const =0
Returns the length of the segment of the geometry which begins at startVertex.
static Type addM(Type type)
Adds the m dimension to a WKB type and returns the new type.
int dimension() const override
Returns the inherent dimension of the geometry.
Utility class for identifying a unique vertex within a geometry.
QString asWkt(int precision=17) const override
Returns a WKT representation of the geometry.
QgsGeometryCollection * createEmptyWithSameType() const override
Creates a new geometry with the same class and same WKB type as the original and transfers ownership...
double area() const override
Returns the area of the geometry.
QgsAbstractGeometry * childGeometry(int index) const override
Returns pointer to child geometry (for geometries with child geometries - i.e.
static Type addZ(Type type)
Adds the z dimension to a WKB type and returns the new type.
T qgsgeometry_cast(const QgsAbstractGeometry *geom)
int childCount() const override
Returns number of child geometries (for geometries with child geometries) or child points (for geomet...
Multi curve geometry collection.
QgsAbstractGeometry * segmentize(double tolerance=M_PI_2/90, SegmentationToleranceType toleranceType=MaximumAngle) const override
Returns a geometry without curves.
QString geometryType() const override
Returns a unique string representing the geometry type.
QByteArray asWkb() const override
Returns a WKB representation of the geometry.
void transform(const QgsCoordinateTransform &ct, QgsCoordinateTransform::TransformDirection d=QgsCoordinateTransform::ForwardTransform, bool transformZ=false) override
Transforms the geometry using a coordinate transform.
bool deleteVertex(QgsVertexId position) override
Deletes a vertex within the geometry.
Abstract base class for all geometries.
void clearCache() const override
Clears any cached parameters associated with the geometry, e.g., bounding boxes.
QgsWkbTypes::Type wkbType() const
Returns the WKB type of the geometry.
int vertexNumberFromVertexId(QgsVertexId id) const override
Returns the vertex number corresponding to a vertex id.
Point geometry type, with support for z-dimension and m-values.
bool fromCollectionWkt(const QString &wkt, const QVector< QgsAbstractGeometry *> &subtypes, const QString &defaultChildWkbType=QString())
Reads a collection from a WKT string.
int numGeometries() const
Returns the number of geometries within the collection.
void combineExtentWith(const QgsRectangle &rect)
Expand the rectangle so that covers both the original rectangle and the given rectangle.
int partCount() const override
Returns count of parts contained in the geometry.
QVector< QgsAbstractGeometry *> mGeometries
static Type dropZ(Type type)
Drops the z dimension (if present) for a WKB type and returns the new type.
Multi polygon geometry collection.
const QgsAbstractGeometry * geometryN(int n) const
Returns a const reference to a geometry from within the collection.
QgsPoint vertexAt(QgsVertexId id) const override
Returns the point corresponding to a specified vertex id.
QgsRectangle boundingBox() const override
Returns the minimal bounding box for the geometry.
Line string geometry type, with support for z-dimension and m-values.
QgsGeometryCollection * toCurveType() const override
Returns the geometry converted to the more generic curve type.
QgsCoordinateSequence coordinateSequence() const override
Retrieves the sequence of geometries, rings and nodes.
bool moveVertex(QgsVertexId position, const QgsPoint &newPos) override
Moves a vertex within the geometry.
bool isNull() const
Test if the rectangle is null (all coordinates zero or after call to setMinimal()).
double perimeter() const override
Returns the perimeter of the geometry.
static bool hasM(Type type)
Tests whether a WKB type contains m values.
Compound curve geometry type.
Circular string geometry type.
QgsGeometryCollection * clone() const override
Clones the geometry by performing a deep copy.
static Type flatType(Type type)
Returns the flat type for a WKB type.
QgsWkbTypes::Type readHeader() const
readHeader
bool is3D() const
Returns true if the geometry is 3D and contains a z-value.
double ANALYSIS_EXPORT leftOf(const QgsPoint &thepoint, const QgsPoint *p1, const QgsPoint *p2)
Returns whether 'thepoint' is left or right of the line from 'p1' to 'p2'. Negativ values mean left a...
static double closestSegmentFromComponents(T &container, ComponentType ctype, const QgsPoint &pt, QgsPoint &segmentPt, QgsVertexId &vertexAfter, int *leftOf, double epsilon)
int vertexCount(int part=0, int ring=0) const override
Returns the number of vertices of which this geometry is built.
void draw(QPainter &p) const override
Draws the geometry using the specified QPainter.
virtual bool addGeometry(QgsAbstractGeometry *g)
Adds a geometry and takes ownership. Returns true in case of success.
double vertexAngle(QgsVertexId vertex) const override
Returns approximate angle at a vertex.
QgsRectangle calculateBoundingBox() const override
Default calculator for the minimal bounding box for the geometry.
~QgsGeometryCollection() override
int ringCount(int part=0) const override
Returns the number of rings of which this geometry is built.