18 #ifndef QGSCOMPOUNDCURVE_H
19 #define QGSCOMPOUNDCURVE_H
21 #include "qgis_core.h"
44 void clear()
override;
47 bool fromWkt(
const QString &wkt )
override;
49 int wkbSize( QgsAbstractGeometry::WkbFlags flags = QgsAbstractGeometry::WkbFlags() )
const override;
50 QByteArray
asWkb( QgsAbstractGeometry::WkbFlags flags = QgsAbstractGeometry::WkbFlags() )
const override;
63 bool isValid( QString &error
SIP_OUT,
int flags = 0 )
const override;
74 bool removeDuplicateNodes(
double epsilon = 4 * std::numeric_limits<double>::epsilon(),
bool useZValues =
false )
override;
95 void removeCurve(
int i );
100 void addVertex(
const QgsPoint &pt );
102 void draw( QPainter &p )
const override;
104 void transform( const QTransform &t,
double zTranslate = 0.0,
double zScale = 1.0,
double mTranslate = 0.0,
double mScale = 1.0 ) override;
105 void addToPainterPath( QPainterPath &path ) const override;
106 void drawAsPolygon( QPainter &p ) const override;
109 bool deleteVertex(
QgsVertexId position ) override;
112 void sumUpArea(
double &sum
SIP_OUT ) const override;
117 bool hasCurvedSegments() const override;
118 double vertexAngle(
QgsVertexId vertex ) const override;
119 double segmentLength(
QgsVertexId startVertex ) const override;
124 bool addZValue(
double zValue = 0 ) override;
125 bool addMValue(
double mValue = 0 ) override;
127 bool dropZValue() override;
128 bool dropMValue() override;
129 void swapXy() override;
131 double xAt(
int index ) const override
SIP_HOLDGIL;
132 double yAt(
int index ) const override
SIP_HOLDGIL;
158 SIP_PYOBJECT __repr__();
160 QString wkt = sipCpp->asWkt();
161 if ( wkt.length() > 1000 )
162 wkt = wkt.left( 1000 ) + QStringLiteral(
"..." );
163 QString str = QStringLiteral(
"<QgsCompoundCurve: %1>" ).arg( wkt );
164 sipRes = PyUnicode_FromString( str.toUtf8().constData() );
173 QVector< QgsCurve * > mCurves;
179 QVector< QPair<int, QgsVertexId> > curveVertexId(
QgsVertexId id )
const;
Abstract base class for all geometries.
virtual bool fromWkb(QgsConstWkbPtr &wkb)=0
Sets the geometry from a WKB string.
SegmentationToleranceType
Segmentation tolerance as maximum angle or maximum difference between approximation and circle.
virtual void draw(QPainter &p) const =0
Draws the geometry using the specified QPainter.
virtual QgsRectangle calculateBoundingBox() const
Default calculator for the minimal bounding box for the geometry.
virtual void transformVertices(const std::function< QgsPoint(const QgsPoint &) > &transform)
Transforms the vertices from the geometry in place, applying the transform function to every vertex.
AxisOrder
Axis order for GML generation.
virtual QString geometryType() const =0
Returns a unique string representing the geometry type.
virtual QgsAbstractGeometry * createEmptyWithSameType() const =0
Creates a new geometry with the same class and same WKB type as the original and transfers ownership.
virtual QByteArray asWkb(WkbFlags flags=QgsAbstractGeometry::WkbFlags()) const =0
Returns a WKB representation of the geometry.
virtual QDomElement asGml2(QDomDocument &doc, int precision=17, const QString &ns="gml", AxisOrder axisOrder=QgsAbstractGeometry::AxisOrder::XY) const =0
Returns a GML2 representation of the geometry.
QgsAbstractGeometry & operator=(const QgsAbstractGeometry &geom)
virtual QgsAbstractGeometry * snappedToGrid(double hSpacing, double vSpacing, double dSpacing=0, double mSpacing=0) const =0
Makes a new geometry with all the points or vertices snapped to the closest point of the grid.
virtual void transform(const QgsCoordinateTransform &ct, QgsCoordinateTransform::TransformDirection d=QgsCoordinateTransform::ForwardTransform, bool transformZ=false) SIP_THROW(QgsCsException)=0
Transforms the geometry using a coordinate transform.
virtual double length() const
Returns the planar, 2-dimensional length of the geometry.
virtual QString asWkt(int precision=17) const =0
Returns a WKT representation of the geometry.
virtual bool isEmpty() const
Returns true if the geometry is empty.
virtual json asJsonObject(int precision=17) const
Returns a json object representation of the geometry.
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 fromWkt(const QString &wkt)=0
Sets the geometry from a WKT string.
virtual void clear()=0
Clears the geometry, ie reset it to a null geometry.
virtual void filterVertices(const std::function< bool(const QgsPoint &) > &filter)
Filters the vertices from the geometry in place, removing any which do not return true for the filter...
QgsWkbTypes::Type wkbType() const SIP_HOLDGIL
Returns the WKB type of the geometry.
virtual int dimension() const =0
Returns the inherent dimension of the geometry.
virtual bool removeDuplicateNodes(double epsilon=4 *std::numeric_limits< double >::epsilon(), bool useZValues=false)=0
Removes duplicate nodes from the geometry, wherever removing the nodes does not result in a degenerat...
virtual int wkbSize(QgsAbstractGeometry::WkbFlags flags=QgsAbstractGeometry::WkbFlags()) const =0
Returns the length of the QByteArray returned by asWkb()
Compound curve geometry type.
static const QgsCompoundCurve * cast(const QgsAbstractGeometry *geom)
Cast the geom to a QgsCompoundCurve.
int nCurves() const SIP_HOLDGIL
Returns the number of curves in the geometry.
Custom exception class for Coordinate Reference System related exceptions.
Abstract base class for curved geometry type.
virtual bool equals(const QgsCurve &other) const =0
Checks whether this curve exactly equals another curve.
virtual int numPoints() const =0
Returns the number of points in the curve.
virtual QgsLineString * curveToLine(double tolerance=M_PI_2/90, SegmentationToleranceType toleranceType=MaximumAngle) const =0
Returns a new line string geometry corresponding to a segmentized approximation of the curve.
bool isValid(QString &error, int flags=0) const override
Checks validity of the geometry, and returns true if the geometry is valid.
QgsCurve * clone() const override=0
Clones the geometry by performing a deep copy.
virtual QgsPoint startPoint() const =0
Returns the starting point of the curve.
virtual QgsPoint endPoint() const =0
Returns the end point of the curve.
virtual void points(QgsPointSequence &pt) const =0
Returns a list of points within the curve.
Base class for feedback objects to be used for cancellation of something running in a worker thread.
Line string geometry type, with support for z-dimension and m-values.
Point geometry type, with support for z-dimension and m-values.
A rectangle specified with double values.
static Type flatType(Type type) SIP_HOLDGIL
Returns the flat type for a WKB type.
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'. Negative values mean left ...
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
QVector< QgsPoint > QgsPointSequence
double closestSegment(const QgsPolylineXY &pl, const QgsPointXY &pt, int &vertexAfter, double epsilon)
Utility class for identifying a unique vertex within a geometry.