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41fa4b19fd
We now buffer the request for the input to a resample filter by a variable number of pixels (depending on the resampling type) in order to fetch the neighbouring pixels to the edges of individual raster blocks. This allows the resampling to utilise these neighbouring pixels when resampling the edges of tiles, avoiding discrepancies and rendering artifacts over the borders of raster tiles. Fixes #30152
100 lines
3.1 KiB
Plaintext
100 lines
3.1 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/raster/qgsrasterresampler.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 QgsRasterResampler
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{
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%Docstring
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Interface for resampling rasters (e.g. to have a smoother appearance)
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%End
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%TypeHeaderCode
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#include "qgsrasterresampler.h"
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#include "qgsbilinearrasterresampler.h"
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#include "qgscubicrasterresampler.h"
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%End
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%ConvertToSubClassCode
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if ( dynamic_cast<QgsBilinearRasterResampler *>( sipCpp ) != NULL )
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sipType = sipType_QgsBilinearRasterResampler;
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else if ( dynamic_cast<QgsCubicRasterResampler *>( sipCpp ) != NULL )
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sipType = sipType_QgsCubicRasterResampler;
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else
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sipType = 0;
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%End
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public:
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virtual ~QgsRasterResampler();
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virtual void resample( const QImage &srcImage, QImage &dstImage ) = 0 /Deprecated/;
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%Docstring
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Resamples a source image to a destination image.
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The size of the passed destination image should be respected during the resampling
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process.
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.. deprecated:: QGIS 3.10.1
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use the more efficient QgsRasterResamplerV2 interface instead.
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%End
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virtual QString type() const = 0;
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%Docstring
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Gets a descriptive type identifier for this raster resampler.
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Needs to be implemented by subclasses.
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%End
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virtual QgsRasterResampler *clone() const = 0 /Factory/;
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%Docstring
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Gets a deep copy of this object.
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Needs to be reimplemented by subclasses.
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Ownership is transferred to the caller.
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%End
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virtual int tileBufferPixels() const;
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%Docstring
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Returns the optional tile buffer size in pixels. This represents
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the size to buffer individual resampled tile requests prior to resampling,
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in order to avoid rendering artifacts at the edges of raster tile boundaries.
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.. versionadded:: 3.10.1
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%End
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};
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class QgsRasterResamplerV2 : QgsRasterResampler
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{
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%Docstring
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Interface for resampling rasters (V2) (e.g. to have a smoother appearance),
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which provides a more efficient interface vs QgsRasterResampler.
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.. versionadded:: 3.10.1
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%End
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%TypeHeaderCode
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#include "qgsrasterresampler.h"
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%End
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public:
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virtual QImage resampleV2( const QImage &source, const QSize &size ) = 0;
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%Docstring
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Resamples a ``source`` image to the specified ``size``.
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Returns the resampled image, or a null QImage if the resampling fails.
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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/raster/qgsrasterresampler.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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