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