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/************************************************************************
* This file has been generated automatically from *
* *
* src/core/qgsmaptopixelgeometrysimplifier.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
class QgsMapToPixelSimplifier : QgsAbstractGeometrySimplifier
{
%Docstring(signature="appended")
Implementation of GeometrySimplifier using the "MapToPixel" algorithm
Simplifies a geometry removing points within of the maximum distance
difference that defines the MapToPixel info of a RenderContext request.
This class enables simplify the geometries to be rendered in a MapCanvas
target to speed up the vector drawing.
%End
%TypeHeaderCode
#include "qgsmaptopixelgeometrysimplifier.h"
%End
public:
QgsMapToPixelSimplifier( int simplifyFlags, double tolerance, Qgis::VectorSimplificationAlgorithm simplifyAlgorithm = Qgis::VectorSimplificationAlgorithm::Distance );
%Docstring
Constructor
%End
enum SimplifyFlag /BaseType=IntEnum/
{
NoFlags,
SimplifyGeometry,
SimplifyEnvelope,
};
protected:
static float calculateLengthSquared2D( double x1, double y1, double x2, double y2 );
%Docstring
Returns the squared 2D-distance of the vector defined by the two points
specified
%End
static bool equalSnapToGrid( double x1, double y1, double x2, double y2, double gridOriginX, double gridOriginY, float gridInverseSizeXY );
%Docstring
Returns whether the points belong to the same grid
%End
public:
int simplifyFlags() const;
%Docstring
Gets the simplification hints of the vector layer managed
%End
void setSimplifyFlags( int simplifyFlags );
%Docstring
Sets the simplification hints of the vector layer managed
%End
Qgis::VectorSimplificationAlgorithm simplifyAlgorithm() const;
%Docstring
Gets the local simplification algorithm of the vector layer managed
%End
void setSimplifyAlgorithm( Qgis::VectorSimplificationAlgorithm simplifyAlgorithm );
%Docstring
Sets the local simplification algorithm of the vector layer managed
%End
virtual QgsGeometry simplify( const QgsGeometry &geometry ) const;
virtual QgsAbstractGeometry *simplify( const QgsAbstractGeometry *geometry ) const /Factory/;
void setTolerance( double value );
%Docstring
Sets the tolerance of the vector layer managed
%End
public:
static bool isGeneralizableByMapBoundingBox( const QgsRectangle &envelope, double map2pixelTol );
%Docstring
Returns whether the envelope can be replaced by its BBOX when is applied
the specified map2pixel context
%End
bool isGeneralizableByMapBoundingBox( const QgsRectangle &envelope ) const;
%Docstring
Returns whether the envelope can be replaced by its BBOX when is applied
the specified map2pixel context
%End
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/qgsmaptopixelgeometrysimplifier.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
|
