mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
49 lines
2.2 KiB
Plaintext
49 lines
2.2 KiB
Plaintext
|
|
/** This class contains information how to simplify geometries fetched from a vector layer
|
|
* @note added in 2.2
|
|
*/
|
|
class QgsVectorSimplifyMethod
|
|
{
|
|
%TypeHeaderCode
|
|
#include "qgsvectorsimplifymethod.h"
|
|
%End
|
|
|
|
public:
|
|
//! construct a default object
|
|
QgsVectorSimplifyMethod();
|
|
//! copy constructor
|
|
QgsVectorSimplifyMethod( const QgsVectorSimplifyMethod& rh );
|
|
|
|
/** Simplification flags for fast rendering of features */
|
|
enum SimplifyHint
|
|
{
|
|
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 )
|
|
};
|
|
typedef QFlags<QgsVectorSimplifyMethod::SimplifyHint> SimplifyHints;
|
|
|
|
/** Sets the simplification hints of the vector layer managed */
|
|
void setSimplifyHints( QFlags<QgsVectorSimplifyMethod::SimplifyHint> simplifyHints );
|
|
/** Gets the simplification hints of the vector layer managed */
|
|
QFlags<QgsVectorSimplifyMethod::SimplifyHint> simplifyHints() const;
|
|
|
|
/** Sets the simplification threshold of the vector layer managed */
|
|
void setThreshold( float threshold );
|
|
/** Gets the simplification threshold of the vector layer managed */
|
|
float threshold() const;
|
|
|
|
/** Sets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries */
|
|
void setForceLocalOptimization( bool localOptimization );
|
|
/** Gets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries */
|
|
bool forceLocalOptimization() const;
|
|
|
|
/** Sets the maximum scale at which the layer should be simplified */
|
|
void setMaximumScale( float maximumScale );
|
|
/** Gets the maximum scale at which the layer should be simplified */
|
|
float maximumScale() const;
|
|
};
|
|
|
|
QFlags<QgsVectorSimplifyMethod::SimplifyHint> operator|( QgsVectorSimplifyMethod::SimplifyHint f1, QFlags<QgsVectorSimplifyMethod::SimplifyHint> f2 );
|