QGIS API Documentation 3.31.0-Master (9938c594d0)
qgsbilinearrasterresampler.cpp
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1/***************************************************************************
2 qgsbilinearrasterresampler.cpp
3 ------------------------------
4 begin : December 2011
5 copyright : (C) 2011 by Marco Hugentobler
6 email : marco at sourcepole dot ch
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
19#include "qgsgdalutils.h"
20#include <QImage>
21#include <cmath>
22
24{
25 return new QgsBilinearRasterResampler();
26}
27
29{
30 return 1;
31}
32
34void QgsBilinearRasterResampler::resample( const QImage &srcImage, QImage &dstImage )
35{
36 dstImage = QgsGdalUtils::resampleImage( srcImage, dstImage.size(), GRIORA_Bilinear );
37}
39
40QImage QgsBilinearRasterResampler::resampleV2( const QImage &source, const QSize &size )
41{
42 return source.scaled( size.width(), size.height(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
43}
44
46{
47 return QStringLiteral( "bilinear" );
48}
Bilinear Raster Resampler.
int tileBufferPixels() const override
Returns the optional tile buffer size in pixels.
QgsBilinearRasterResampler * clone() const override
Gets a deep copy of this object.
QImage resampleV2(const QImage &source, const QSize &size) override
Resamples a source image to the specified size.
Q_DECL_DEPRECATED void resample(const QImage &srcImage, QImage &dstImage) override
Resamples a source image to a destination image.
QgsBilinearRasterResampler()=default
Constructor for QgsBilinearRasterResampler.
QString type() const override
Gets a descriptive type identifier for this raster resampler.
static QImage resampleImage(const QImage &image, QSize outputSize, GDALRIOResampleAlg resampleAlg)
Resamples a QImage image using GDAL resampler.
#define Q_NOWARN_DEPRECATED_POP
Definition: qgis.h:4540
#define Q_NOWARN_DEPRECATED_PUSH
Definition: qgis.h:4539