mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-26 00:02:08 -05:00
40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
class QgsMapToPixelSimplifier : public QgsAbstractGeometrySimplifier
|
|
{
|
|
%TypeHeaderCode
|
|
#include "qgsmaptopixelgeometrysimplifier.h"
|
|
%End
|
|
public:
|
|
QgsMapToPixelSimplifier( int simplifyFlags, double tolerance );
|
|
virtual ~QgsMapToPixelSimplifier();
|
|
|
|
//! Applicable simplification flags
|
|
enum SimplifyFlag
|
|
{
|
|
NoFlags = 0, //!< No simplification can be applied
|
|
SimplifyGeometry = 1, //!< The geometries can be simplified using the current map2pixel context state
|
|
SimplifyEnvelope = 2, //!< The geometries can be fully simplified by its BoundingBox
|
|
};
|
|
|
|
public:
|
|
int simplifyFlags() const;
|
|
void setSimplifyFlags( int simplifyFlags );
|
|
|
|
//! Returns a simplified version the specified geometry
|
|
virtual QgsGeometry* simplify( QgsGeometry* geometry ) const;
|
|
//! Simplifies the specified geometry
|
|
virtual bool simplifyGeometry( QgsGeometry* geometry ) const;
|
|
|
|
// MapToPixel simplification helper methods
|
|
public:
|
|
|
|
//! Returns whether the envelope can be replaced by its BBOX when is applied the specified map2pixel context
|
|
static bool canbeGeneralizedByMapBoundingBox( const QgsRectangle& envelope, double map2pixelTol );
|
|
|
|
//! Returns whether the envelope can be replaced by its BBOX when is applied the specified map2pixel context
|
|
bool canbeGeneralizedByMapBoundingBox( const QgsRectangle& envelope ) const;
|
|
|
|
//! Simplifies the geometry when is applied the specified map2pixel context
|
|
static bool simplifyGeometry( QgsGeometry* geometry, int simplifyFlags, double tolerance );
|
|
|
|
};
|