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Enable LZM compression when saving map as tiff image

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This commit is contained in:
Mathieu Pellerin 2022-04-26 12:10:14 +07:00
parent c6c00bf6eb
commit 4c88bc54b0
1 changed files with 8 additions and 1 deletions
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9
src/core/maprenderer/qgsmaprenderertask.cpp
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@ -28,6 +28,7 @@
#include "qgsvectorlayer.h"
#include <QFile>
#include <QImageWriter>
#include <QTextStream>
#include <QTimeZone>
#ifndef QT_NO_PRINTER
@ -383,7 +384,13 @@ bool QgsMapRendererTask::run()
}
else if ( mFileFormat != QLatin1String( "PDF" ) )
{
const bool success = mImage.save( mFileName, mFileFormat.toLocal8Bit().data() );
QImageWriter writer( mFileName, mFileFormat.toLocal8Bit().data() );
if ( mFileFormat == QLatin1String( "TIF" ) || mFileFormat == QLatin1String( "TIFF" ) )
{
// Enable LZW compression
writer.setCompression( 1 );
}
const bool success = writer.write( mImage );
if ( !success )
{
mError = ImageSaveFail;