QGIS API Documentation 3.41.0-Master (d5b93354e9c)
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Enumerations | Functions
qgsinternalgeometryengine.cpp File Reference
#include "qgsinternalgeometryengine.h"
#include "qgslinestring.h"
#include "qgsmultipolygon.h"
#include "qgspolygon.h"
#include "qgsmulticurve.h"
#include "qgscircularstring.h"
#include "qgsgeometry.h"
#include "qgsgeometryutils.h"
#include "qgslinesegment.h"
#include "qgscircle.h"
#include "qgstessellator.h"
#include "qgsfeedback.h"
#include "qgsgeometryengine.h"
#include "qgsmultilinestring.h"
#include "qgsgeos.h"
#include <QTransform>
#include <functional>
#include <memory>
#include <queue>
#include <random>
#include <geos_c.h>
Include dependency graph for qgsinternalgeometryengine.cpp:

Go to the source code of this file.

Enumerations

enum class  Direction {
  Up , Right , Down , Left ,
  None
}
 

Functions

std::unique_ptr< QgsAbstractGeometryapplyDashPatternPrivate (const QgsAbstractGeometry *geom, const QVector< double > &pattern, Qgis::DashPatternLineEndingRule startRule, Qgis::DashPatternLineEndingRule endRule, Qgis::DashPatternSizeAdjustment adjustment, double patternOffset)
 
QgsVector calcMotion (const QgsPoint &a, const QgsPoint &b, const QgsPoint &c, double lowerThreshold, double upperThreshold)
 
std::unique_ptr< QgsAbstractGeometryconvertGeometryToCurves (const QgsAbstractGeometry *geom, double distanceTolerance, double angleTolerance)
 
std::unique_ptr< QgsMultiLineStringdashPatternAlongLine (const QgsLineString *line, const QVector< double > &pattern, Qgis::DashPatternLineEndingRule startRule, Qgis::DashPatternLineEndingRule endRule, Qgis::DashPatternSizeAdjustment adjustment, double patternOffset)
 
QgsAbstractGeometrydensifyGeometry (const QgsAbstractGeometry *geom, int extraNodesPerSegment=1, double distance=1)
 
QgsLineStringdoDensify (const QgsLineString *ring, int extraNodesPerSegment=-1, double distance=1)
 
QgsLineStringdoOrthogonalize (QgsLineString *ring, int iterations, double tolerance, double lowerThreshold, double upperThreshold)
 
bool dotProductWithinAngleTolerance (double dotProduct, double lowerThreshold, double upperThreshold)
 
QVector< QgsPointXYgenerateSegmentCurve (const QgsPoint &center1, const double radius1, const QgsPoint &center2, const double radius2)
 
Direction getEdgeDirection (const QgsPoint &p1, const QgsPoint &p2, double maxDev)
 Determines the direction of an edge from p1 to p2.
 
std::pair< bool, std::array< Direction, 4 > > getEdgeDirections (const QgsPolygon *g, double maxDev)
 Checks whether the polygon consists of four nearly axis-parallel sides.
 
bool isClockwise (std::array< Direction, 4 > dirs)
 Checks whether the 4 directions in dirs make up a clockwise rectangle.
 
bool isCounterClockwise (std::array< Direction, 4 > dirs)
 Checks whether the 4 directions in dirs make up a counter-clockwise rectangle.
 
std::unique_ptr< QgsCurvelineToCurve (const QgsCurve *curve, double distanceTolerance, double pointSpacingAngleTolerance)
 
bool matchesOrientation (std::array< Direction, 4 > dirs, std::array< Direction, 4 > oriented)
 
double normalizedDotProduct (const QgsPoint &a, const QgsPoint &b, const QgsPoint &c)
 
QgsAbstractGeometryorthogonalizeGeom (const QgsAbstractGeometry *geom, int maxIterations, double tolerance, double lowerThreshold, double upperThreshold)
 
QVector< QgsPointXYrandomPointsInPolygonGeosBackend (const QgsAbstractGeometry *geometry, int count, const std::function< bool(const QgsPointXY &) > &acceptPoint, unsigned long seed, QgsFeedback *feedback, int maxTriesPerPoint, QString &error)
 
QVector< QgsPointXYrandomPointsInPolygonPoly2TriBackend (const QgsAbstractGeometry *geometry, int count, const std::function< bool(const QgsPointXY &) > &acceptPoint, unsigned long seed, QgsFeedback *feedback, int maxTriesPerPoint, QString &error)
 
std::unique_ptr< QgsLineStringroundWavesAlongLine (const QgsLineString *line, double wavelength, const double amplitude, const bool strictWavelength)
 
std::unique_ptr< QgsAbstractGeometryroundWavesPrivate (const QgsAbstractGeometry *geom, double wavelength, double amplitude, bool strictWavelength)
 
std::unique_ptr< QgsLineStringroundWavesRandomizedAlongLine (const QgsLineString *line, const double minimumWavelength, const double maximumWavelength, const double minimumAmplitude, const double maximumAmplitude, std::uniform_real_distribution<> &uniformDist, std::mt19937 &mt)
 
std::unique_ptr< QgsAbstractGeometryroundWavesRandomizedPrivate (const QgsAbstractGeometry *geom, double minimumWavelength, double maximumWavelength, double minimumAmplitude, double maximumAmplitude, std::uniform_real_distribution<> &uniformDist, std::mt19937 &mt)
 
double squareness (QgsLineString *ring, double lowerThreshold, double upperThreshold)
 
std::unique_ptr< QgsLineStringsquareWavesAlongLine (const QgsLineString *line, double wavelength, const double amplitude, const bool strictWavelength)
 
std::unique_ptr< QgsAbstractGeometrysquareWavesPrivate (const QgsAbstractGeometry *geom, double wavelength, double amplitude, bool strictWavelength)
 
std::unique_ptr< QgsLineStringsquareWavesRandomizedAlongLine (const QgsLineString *line, const double minimumWavelength, const double maximumWavelength, const double minimumAmplitude, const double maximumAmplitude, std::uniform_real_distribution<> &uniformDist, std::mt19937 &mt)
 
std::unique_ptr< QgsAbstractGeometrysquareWavesRandomizedPrivate (const QgsAbstractGeometry *geom, double minimumWavelength, double maximumWavelength, double minimumAmplitude, double maximumAmplitude, std::uniform_real_distribution<> &uniformDist, std::mt19937 &mt)
 
std::unique_ptr< QgsLineStringtriangularWavesAlongLine (const QgsLineString *line, double wavelength, const double amplitude, const bool strictWavelength)
 
std::unique_ptr< QgsAbstractGeometrytriangularWavesPrivate (const QgsAbstractGeometry *geom, double wavelength, double amplitude, bool strictWavelength)
 
std::unique_ptr< QgsLineStringtriangularWavesRandomizedAlongLine (const QgsLineString *line, const double minimumWavelength, const double maximumWavelength, const double minimumAmplitude, const double maximumAmplitude, std::uniform_real_distribution<> &uniformDist, std::mt19937 &mt)
 
std::unique_ptr< QgsAbstractGeometrytriangularWavesRandomizedPrivate (const QgsAbstractGeometry *geom, double minimumWavelength, double maximumWavelength, double minimumAmplitude, double maximumAmplitude, std::uniform_real_distribution<> &uniformDist, std::mt19937 &mt)
 

Enumeration Type Documentation

◆ Direction

enum class Direction
strong
Enumerator
Up 
Right 
Down 
Left 
None 

Definition at line 52 of file qgsinternalgeometryengine.cpp.

Function Documentation

◆ applyDashPatternPrivate()

std::unique_ptr< QgsAbstractGeometry > applyDashPatternPrivate ( const QgsAbstractGeometry geom,
const QVector< double > &  pattern,
Qgis::DashPatternLineEndingRule  startRule,
Qgis::DashPatternLineEndingRule  endRule,
Qgis::DashPatternSizeAdjustment  adjustment,
double  patternOffset 
)

Definition at line 3093 of file qgsinternalgeometryengine.cpp.

◆ calcMotion()

QgsVector calcMotion ( const QgsPoint a,
const QgsPoint b,
const QgsPoint c,
double  lowerThreshold,
double  upperThreshold 
)

Definition at line 503 of file qgsinternalgeometryengine.cpp.

◆ convertGeometryToCurves()

std::unique_ptr< QgsAbstractGeometry > convertGeometryToCurves ( const QgsAbstractGeometry geom,
double  distanceTolerance,
double  angleTolerance 
)

Definition at line 1740 of file qgsinternalgeometryengine.cpp.

◆ dashPatternAlongLine()

std::unique_ptr< QgsMultiLineString > dashPatternAlongLine ( const QgsLineString line,
const QVector< double > &  pattern,
Qgis::DashPatternLineEndingRule  startRule,
Qgis::DashPatternLineEndingRule  endRule,
Qgis::DashPatternSizeAdjustment  adjustment,
double  patternOffset 
)

Definition at line 2859 of file qgsinternalgeometryengine.cpp.

◆ densifyGeometry()

QgsAbstractGeometry * densifyGeometry ( const QgsAbstractGeometry geom,
int  extraNodesPerSegment = 1,
double  distance = 1 
)

Definition at line 769 of file qgsinternalgeometryengine.cpp.

◆ doDensify()

QgsLineString * doDensify ( const QgsLineString ring,
int  extraNodesPerSegment = -1,
double  distance = 1 
)

Definition at line 678 of file qgsinternalgeometryengine.cpp.

◆ doOrthogonalize()

QgsLineString * doOrthogonalize ( QgsLineString ring,
int  iterations,
double  tolerance,
double  lowerThreshold,
double  upperThreshold 
)

Definition at line 538 of file qgsinternalgeometryengine.cpp.

◆ dotProductWithinAngleTolerance()

bool dotProductWithinAngleTolerance ( double  dotProduct,
double  lowerThreshold,
double  upperThreshold 
)

Definition at line 441 of file qgsinternalgeometryengine.cpp.

◆ generateSegmentCurve()

QVector< QgsPointXY > generateSegmentCurve ( const QgsPoint center1,
const double  radius1,
const QgsPoint center2,
const double  radius2 
)

Definition at line 1022 of file qgsinternalgeometryengine.cpp.

◆ getEdgeDirection()

Direction getEdgeDirection ( const QgsPoint p1,
const QgsPoint p2,
double  maxDev 
)

Determines the direction of an edge from p1 to p2.

maxDev is the tangent of the maximum allowed edge deviation angle. If the edge deviates more than the allowed angle, Direction::None will be returned.

Definition at line 66 of file qgsinternalgeometryengine.cpp.

◆ getEdgeDirections()

std::pair< bool, std::array< Direction, 4 > > getEdgeDirections ( const QgsPolygon g,
double  maxDev 
)

Checks whether the polygon consists of four nearly axis-parallel sides.

All consecutive edges having the same direction are considered to belong to the same side.

Definition at line 93 of file qgsinternalgeometryengine.cpp.

◆ isClockwise()

bool isClockwise ( std::array< Direction, 4 >  dirs)

Checks whether the 4 directions in dirs make up a clockwise rectangle.

Definition at line 145 of file qgsinternalgeometryengine.cpp.

◆ isCounterClockwise()

bool isCounterClockwise ( std::array< Direction, 4 >  dirs)

Checks whether the 4 directions in dirs make up a counter-clockwise rectangle.

Definition at line 155 of file qgsinternalgeometryengine.cpp.

◆ lineToCurve()

std::unique_ptr< QgsCurve > lineToCurve ( const QgsCurve curve,
double  distanceTolerance,
double  pointSpacingAngleTolerance 
)

Definition at line 1508 of file qgsinternalgeometryengine.cpp.

◆ matchesOrientation()

bool matchesOrientation ( std::array< Direction, 4 >  dirs,
std::array< Direction, 4 >  oriented 
)

Definition at line 131 of file qgsinternalgeometryengine.cpp.

◆ normalizedDotProduct()

double normalizedDotProduct ( const QgsPoint a,
const QgsPoint b,
const QgsPoint c 
)

Definition at line 446 of file qgsinternalgeometryengine.cpp.

◆ orthogonalizeGeom()

QgsAbstractGeometry * orthogonalizeGeom ( const QgsAbstractGeometry geom,
int  maxIterations,
double  tolerance,
double  lowerThreshold,
double  upperThreshold 
)

Definition at line 610 of file qgsinternalgeometryengine.cpp.

◆ randomPointsInPolygonGeosBackend()

QVector< QgsPointXY > randomPointsInPolygonGeosBackend ( const QgsAbstractGeometry geometry,
int  count,
const std::function< bool(const QgsPointXY &) > &  acceptPoint,
unsigned long  seed,
QgsFeedback feedback,
int  maxTriesPerPoint,
QString &  error 
)

Definition at line 1370 of file qgsinternalgeometryengine.cpp.

◆ randomPointsInPolygonPoly2TriBackend()

QVector< QgsPointXY > randomPointsInPolygonPoly2TriBackend ( const QgsAbstractGeometry geometry,
int  count,
const std::function< bool(const QgsPointXY &) > &  acceptPoint,
unsigned long  seed,
QgsFeedback feedback,
int  maxTriesPerPoint,
QString &  error 
)

Definition at line 1227 of file qgsinternalgeometryengine.cpp.

◆ roundWavesAlongLine()

std::unique_ptr< QgsLineString > roundWavesAlongLine ( const QgsLineString line,
double  wavelength,
const double  amplitude,
const bool  strictWavelength 
)

Definition at line 2443 of file qgsinternalgeometryengine.cpp.

◆ roundWavesPrivate()

std::unique_ptr< QgsAbstractGeometry > roundWavesPrivate ( const QgsAbstractGeometry geom,
double  wavelength,
double  amplitude,
bool  strictWavelength 
)

Definition at line 2715 of file qgsinternalgeometryengine.cpp.

◆ roundWavesRandomizedAlongLine()

std::unique_ptr< QgsLineString > roundWavesRandomizedAlongLine ( const QgsLineString line,
const double  minimumWavelength,
const double  maximumWavelength,
const double  minimumAmplitude,
const double  maximumAmplitude,
std::uniform_real_distribution<> &  uniformDist,
std::mt19937 &  mt 
)

Definition at line 2569 of file qgsinternalgeometryengine.cpp.

◆ roundWavesRandomizedPrivate()

std::unique_ptr< QgsAbstractGeometry > roundWavesRandomizedPrivate ( const QgsAbstractGeometry geom,
double  minimumWavelength,
double  maximumWavelength,
double  minimumAmplitude,
double  maximumAmplitude,
std::uniform_real_distribution<> &  uniformDist,
std::mt19937 &  mt 
)

Definition at line 2746 of file qgsinternalgeometryengine.cpp.

◆ squareness()

double squareness ( QgsLineString ring,
double  lowerThreshold,
double  upperThreshold 
)

Definition at line 459 of file qgsinternalgeometryengine.cpp.

◆ squareWavesAlongLine()

std::unique_ptr< QgsLineString > squareWavesAlongLine ( const QgsLineString line,
double  wavelength,
const double  amplitude,
const bool  strictWavelength 
)

Definition at line 2147 of file qgsinternalgeometryengine.cpp.

◆ squareWavesPrivate()

std::unique_ptr< QgsAbstractGeometry > squareWavesPrivate ( const QgsAbstractGeometry geom,
double  wavelength,
double  amplitude,
bool  strictWavelength 
)

Definition at line 2299 of file qgsinternalgeometryengine.cpp.

◆ squareWavesRandomizedAlongLine()

std::unique_ptr< QgsLineString > squareWavesRandomizedAlongLine ( const QgsLineString line,
const double  minimumWavelength,
const double  maximumWavelength,
const double  minimumAmplitude,
const double  maximumAmplitude,
std::uniform_real_distribution<> &  uniformDist,
std::mt19937 &  mt 
)

Definition at line 2220 of file qgsinternalgeometryengine.cpp.

◆ squareWavesRandomizedPrivate()

std::unique_ptr< QgsAbstractGeometry > squareWavesRandomizedPrivate ( const QgsAbstractGeometry geom,
double  minimumWavelength,
double  maximumWavelength,
double  minimumAmplitude,
double  maximumAmplitude,
std::uniform_real_distribution<> &  uniformDist,
std::mt19937 &  mt 
)

Definition at line 2330 of file qgsinternalgeometryengine.cpp.

◆ triangularWavesAlongLine()

std::unique_ptr< QgsLineString > triangularWavesAlongLine ( const QgsLineString line,
double  wavelength,
const double  amplitude,
const bool  strictWavelength 
)

Definition at line 1869 of file qgsinternalgeometryengine.cpp.

◆ triangularWavesPrivate()

std::unique_ptr< QgsAbstractGeometry > triangularWavesPrivate ( const QgsAbstractGeometry geom,
double  wavelength,
double  amplitude,
bool  strictWavelength 
)

Definition at line 2003 of file qgsinternalgeometryengine.cpp.

◆ triangularWavesRandomizedAlongLine()

std::unique_ptr< QgsLineString > triangularWavesRandomizedAlongLine ( const QgsLineString line,
const double  minimumWavelength,
const double  maximumWavelength,
const double  minimumAmplitude,
const double  maximumAmplitude,
std::uniform_real_distribution<> &  uniformDist,
std::mt19937 &  mt 
)

Definition at line 1933 of file qgsinternalgeometryengine.cpp.

◆ triangularWavesRandomizedPrivate()

std::unique_ptr< QgsAbstractGeometry > triangularWavesRandomizedPrivate ( const QgsAbstractGeometry geom,
double  minimumWavelength,
double  maximumWavelength,
double  minimumAmplitude,
double  maximumAmplitude,
std::uniform_real_distribution<> &  uniformDist,
std::mt19937 &  mt 
)

Definition at line 2034 of file qgsinternalgeometryengine.cpp.