QgsAbstractGeometrySimplifier Class Reference

Abstract base class for simplify geometries using a specific algorithm. More...

#include <qgsgeometrysimplifier.h>

Inheritance diagram for QgsAbstractGeometrySimplifier:

Public Member Functions
virtual	~QgsAbstractGeometrySimplifier ()
virtual QgsGeometry *	simplify (QgsGeometry *geometry) const =0
	Returns a simplified version the specified geometry. More...
virtual bool	simplifyGeometry (QgsGeometry *geometry) const =0
	Simplifies the specified geometry. More...

Static Public Member Functions
static bool	isGeneralizableByDeviceBoundingBox (const QgsRectangle &envelope, float mapToPixelTol=1.0f)
	Returns whether the device-envelope can be replaced by its BBOX when is applied the specified tolerance. More...
static bool	isGeneralizableByDeviceBoundingBox (const QVector< QPointF > &points, float mapToPixelTol=1.0f)
	Returns whether the device-geometry can be replaced by its BBOX when is applied the specified tolerance. More...

Detailed Description

Abstract base class for simplify geometries using a specific algorithm.

Definition at line 25 of file qgsgeometrysimplifier.h.

Constructor & Destructor Documentation

~QgsAbstractGeometrySimplifier()

QgsAbstractGeometrySimplifier::~QgsAbstractGeometrySimplifier ( )

virtual

Definition at line 20 of file qgsgeometrysimplifier.cpp.

Member Function Documentation

isGeneralizableByDeviceBoundingBox() [1/2]

bool QgsAbstractGeometrySimplifier::isGeneralizableByDeviceBoundingBox ( const QgsRectangle &  envelope, float  mapToPixelTol = 1.0f  )

static

Returns whether the device-envelope can be replaced by its BBOX when is applied the specified tolerance.

Definition at line 25 of file qgsgeometrysimplifier.cpp.

isGeneralizableByDeviceBoundingBox() [2/2]

bool QgsAbstractGeometrySimplifier::isGeneralizableByDeviceBoundingBox ( const QVector< QPointF > &  points, float  mapToPixelTol = 1.0f  )

static

Returns whether the device-geometry can be replaced by its BBOX when is applied the specified tolerance.

Definition at line 31 of file qgsgeometrysimplifier.cpp.

simplify()

virtual QgsGeometry* QgsAbstractGeometrySimplifier::simplify ( QgsGeometry *  geometry ) const

pure virtual

Returns a simplified version the specified geometry.

Implemented in QgsMapToPixelSimplifier, and QgsTopologyPreservingSimplifier.

simplifyGeometry()

virtual bool QgsAbstractGeometrySimplifier::simplifyGeometry ( QgsGeometry *  geometry ) const

pure virtual

Simplifies the specified geometry.

Implemented in QgsMapToPixelSimplifier, and QgsTopologyPreservingSimplifier.

---

The documentation for this class was generated from the following files:

• /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsgeometrysimplifier.h
• /tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsgeometrysimplifier.cpp