QgsVectorSimplifyMethod Class Reference

This class contains information how to simplify geometries fetched from a vector layer. More...

#include <qgsvectorsimplifymethod.h>

Public Types
enum	SimplifyHint { NoSimplification = 0, GeometrySimplification = 1, AntialiasingSimplification = 2, FullSimplification = 3 }
	Simplification flags for fast rendering of features. More...

Public Member Functions
	QgsVectorSimplifyMethod ()
	construct a default object
	QgsVectorSimplifyMethod (const QgsVectorSimplifyMethod &rh)
	copy constructor
QgsVectorSimplifyMethod &	operator= (const QgsVectorSimplifyMethod &rh)
	assignment operator
void	setSimplifyHints (SimplifyHints simplifyHints)
	Sets the simplification hints of the vector layer managed.
SimplifyHints	simplifyHints () const
	Gets the simplification hints of the vector layer managed.
void	setThreshold (float threshold)
	Sets the simplification threshold of the vector layer managed.
float	threshold () const
	Gets the simplification threshold of the vector layer managed.
void	setForceLocalOptimization (bool localOptimization)
	Sets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries.
bool	forceLocalOptimization () const
	Gets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries.
void	setMaximumScale (float maximumScale)
	Sets the maximum scale at which the layer should be simplified.
float	maximumScale () const
	Gets the maximum scale at which the layer should be simplified.

Detailed Description

This class contains information how to simplify geometries fetched from a vector layer.

Note

added in 2.2

Member Enumeration Documentation

enum QgsVectorSimplifyMethod::SimplifyHint

Simplification flags for fast rendering of features.

Enumerator:

NoSimplification	No simplification can be applied.
GeometrySimplification	The geometries can be simplified using the current map2pixel context state.
AntialiasingSimplification	The geometries can be rendered with 'AntiAliasing' disabled because of it is '1-pixel size'.
FullSimplification	All simplification hints can be applied ( Geometry + AA-disabling )

Constructor & Destructor Documentation

QgsVectorSimplifyMethod::QgsVectorSimplifyMethod

(

)

construct a default object

QgsVectorSimplifyMethod::QgsVectorSimplifyMethod

(

const QgsVectorSimplifyMethod &

rh

)

copy constructor

Member Function Documentation

bool QgsVectorSimplifyMethod::forceLocalOptimization ( ) const

inline

Gets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries.

float QgsVectorSimplifyMethod::maximumScale ( ) const

inline

Gets the maximum scale at which the layer should be simplified.

QgsVectorSimplifyMethod & QgsVectorSimplifyMethod::operator=

(

const QgsVectorSimplifyMethod &

rh

)

assignment operator

void QgsVectorSimplifyMethod::setForceLocalOptimization ( bool  localOptimization )

inline

Sets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries.

void QgsVectorSimplifyMethod::setMaximumScale ( float  maximumScale )

inline

Sets the maximum scale at which the layer should be simplified.

void QgsVectorSimplifyMethod::setSimplifyHints ( SimplifyHints  simplifyHints )

inline

Sets the simplification hints of the vector layer managed.

void QgsVectorSimplifyMethod::setThreshold ( float  threshold )

inline

Sets the simplification threshold of the vector layer managed.

SimplifyHints QgsVectorSimplifyMethod::simplifyHints ( ) const

inline

Gets the simplification hints of the vector layer managed.

float QgsVectorSimplifyMethod::threshold ( ) const

inline

Gets the simplification threshold of the vector layer managed.

---

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

• /tmp/buildd/qgis-2.6.0+wheezy1/src/core/qgsvectorsimplifymethod.h
• /tmp/buildd/qgis-2.6.0+wheezy1/src/core/qgsvectorsimplifymethod.cpp