qgsgeometry.cpp File Reference

#include <limits>
#include <cstdarg>
#include <cstdio>
#include <cmath>
#include "qgis.h"
#include "qgsgeometry.h"
#include "qgsapplication.h"
#include "qgslogger.h"
#include "qgsmessagelog.h"
#include "qgspoint.h"
#include "qgsrectangle.h"
#include "qgsmaplayerregistry.h"
#include "qgsvectorlayer.h"
#include "qgsproject.h"
#include "qgsgeometryvalidator.h"
#include <netinet/in.h>

Include dependency graph for qgsgeometry.cpp:

Go to the source code of this file.

Classes
class	GEOSException
class	GEOSInit

Macros
#define	DEFAULT_QUADRANT_SEGMENTS   8
#define	CATCH_GEOS(r)

Functions
static void	throwGEOSException (const char *fmt,...)
static void	printGEOSNotice (const char *fmt,...)
static unsigned int	getNumGeosPoints (const GEOSGeometry *geom)
static GEOSGeometry *	createGeosPoint (const QgsPoint &point)
static GEOSCoordSequence *	createGeosCoordSequence (const QgsPolyline &points)
static GEOSGeometry *	createGeosCollection (int typeId, QVector< GEOSGeometry * > geoms)
static GEOSGeometry *	createGeosLineString (const QgsPolyline &polyline)
static GEOSGeometry *	createGeosLinearRing (const QgsPolyline &polyline)
static GEOSGeometry *	createGeosPolygon (const QVector< GEOSGeometry * > &rings)
static GEOSGeometry *	createGeosPolygon (GEOSGeometry *shell)
static GEOSGeometry *	createGeosPolygon (const QgsPolygon &polygon)
static QgsGeometry *	fromGeosGeom (GEOSGeometry *geom)
static GEOSGeometry *	_makeUnion (QList< GEOSGeometry * > geoms)
	Return union of several geometries - try to use unary union if available (GEOS >= 3.3) otherwise use a cascade of unions.

Variables
static GEOSInit	geosinit

Macro Definition Documentation

#define CATCH_GEOS

(

r

)

Value:

catch (GEOSException &e) \
  { \
    QgsMessageLog::logMessage( QObject::tr( "Exception: %1" ).arg( e.what() ), QObject::tr("GEOS") ); \
    return r; \
  }

Definition at line 43 of file qgsgeometry.cpp.

Referenced by QgsGeometry::area(), QgsGeometry::buffer(), QgsGeometry::centroid(), QgsGeometry::combine(), QgsGeometry::convexHull(), QgsGeometry::difference(), QgsGeometry::distance(), QgsGeometry::exportWkbToGeos(), QgsGeometry::geosRelOp(), QgsGeometry::interpolate(), QgsGeometry::intersection(), QgsGeometry::intersects(), QgsGeometry::length(), QgsGeometry::makeDifference(), QgsGeometry::simplify(), QgsGeometry::splitGeometry(), and QgsGeometry::symDifference().

#define DEFAULT_QUADRANT_SEGMENTS   8

Definition at line 41 of file qgsgeometry.cpp.

Referenced by QgsGeometry::lineContainedInLine().

Function Documentation

static GEOSGeometry* _makeUnion ( QList< GEOSGeometry * >  geoms )

static

Return union of several geometries - try to use unary union if available (GEOS >= 3.3) otherwise use a cascade of unions.

Takes ownership of passed geometries, returns a new instance

Definition at line 5821 of file qgsgeometry.cpp.

References createGeosCollection().

Referenced by QgsGeometry::avoidIntersections().

static GEOSGeometry* createGeosCollection ( int  typeId, QVector< GEOSGeometry * >  geoms  )

static

Definition at line 270 of file qgsgeometry.cpp.

References QgsMessageLog::logMessage(), tr, and GEOSException::what().

Referenced by _makeUnion(), QgsGeometry::addPart(), QgsGeometry::addRing(), QgsGeometry::exportWkbToGeos(), QgsGeometry::fromMultiPoint(), QgsGeometry::fromMultiPolygon(), QgsGeometry::fromMultiPolyline(), and QgsGeometry::mergeGeometriesMultiTypeSplit().

static GEOSCoordSequence* createGeosCoordSequence ( const QgsPolyline &  points )

static

Definition at line 246 of file qgsgeometry.cpp.

References QgsMessageLog::logMessage(), tr, and GEOSException::what().

Referenced by createGeosLinearRing(), and createGeosLineString().

static GEOSGeometry* createGeosLinearRing ( const QgsPolyline &  polyline )

static

Definition at line 314 of file qgsgeometry.cpp.

References createGeosCoordSequence(), QgsMessageLog::logMessage(), tr, and GEOSException::what().

Referenced by QgsGeometry::addPart(), QgsGeometry::addRing(), createGeosPolygon(), and QgsGeometry::exportWkbToGeos().

static GEOSGeometry* createGeosLineString ( const QgsPolyline &  polyline )

static

Definition at line 295 of file qgsgeometry.cpp.

References createGeosCoordSequence(), QgsMessageLog::logMessage(), tr, and GEOSException::what().

Referenced by QgsGeometry::addPart(), QgsGeometry::exportWkbToGeos(), QgsGeometry::fromMultiPolyline(), QgsGeometry::fromPolyline(), QgsGeometry::reshapeGeometry(), and QgsGeometry::splitGeometry().

static GEOSGeometry* createGeosPoint ( const QgsPoint &  point )

static

Definition at line 238 of file qgsgeometry.cpp.

References QgsPoint::x(), and QgsPoint::y().

Referenced by QgsGeometry::addPart(), QgsGeometry::contains(), QgsGeometry::exportWkbToGeos(), QgsGeometry::fromMultiPoint(), QgsGeometry::fromPoint(), and QgsGeometry::reshapeLine().

static GEOSGeometry* createGeosPolygon ( const QVector< GEOSGeometry * > &  rings )

static

Definition at line 347 of file qgsgeometry.cpp.

Referenced by QgsGeometry::addPart(), QgsGeometry::addRing(), createGeosPolygon(), QgsGeometry::exportWkbToGeos(), QgsGeometry::fromMultiPolygon(), and QgsGeometry::fromPolygon().

static GEOSGeometry* createGeosPolygon ( GEOSGeometry *  shell )

static

Definition at line 387 of file qgsgeometry.cpp.

References createGeosPolygon().

static GEOSGeometry* createGeosPolygon ( const QgsPolygon &  polygon )

static

Definition at line 392 of file qgsgeometry.cpp.

References createGeosLinearRing(), createGeosPolygon(), QgsMessageLog::logMessage(), tr, and GEOSException::what().

static QgsGeometry* fromGeosGeom ( GEOSGeometry *  geom )

static

Definition at line 415 of file qgsgeometry.cpp.

References QgsGeometry::fromGeos().

Referenced by QgsGeometry::asGeometryCollection(), QgsGeometry::buffer(), QgsGeometry::centroid(), QgsGeometry::combine(), QgsGeometry::convexHull(), QgsGeometry::difference(), QgsGeometry::fromMultiPoint(), QgsGeometry::fromMultiPolygon(), QgsGeometry::fromMultiPolyline(), QgsGeometry::fromPoint(), QgsGeometry::fromPolygon(), QgsGeometry::fromPolyline(), QgsGeometry::fromWkt(), QgsGeometry::interpolate(), QgsGeometry::intersection(), QgsGeometry::simplify(), QgsGeometry::splitLinearGeometry(), QgsGeometry::splitPolygonGeometry(), and QgsGeometry::symDifference().

static unsigned int getNumGeosPoints ( const GEOSGeometry *  geom )

static

Definition at line 230 of file qgsgeometry.cpp.

Referenced by QgsGeometry::exportGeosToWkb().

static void printGEOSNotice ( const char *  fmt,   ...  )

static

Definition at line 104 of file qgsgeometry.cpp.

References QgsDebugMsg.

Referenced by GEOSInit::GEOSInit().

static void throwGEOSException ( const char *  fmt,   ...  )

static

Definition at line 90 of file qgsgeometry.cpp.

References QgsDebugMsg.

Referenced by QgsGeometry::addRing(), and GEOSInit::GEOSInit().

Variable Documentation

GEOSInit geosinit

static

Definition at line 134 of file qgsgeometry.cpp.