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remove input raster layer as member

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root676 2020-04-10 12:16:36 +02:00 committed by Nyall Dawson
parent cb69235483
commit 731261cd13
2 changed files with 13 additions and 14 deletions
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26
src/analysis/processing/qgsalgorithmroundrastervalues.cpp
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@ -50,7 +50,7 @@ void QgsRoundRasterValuesAlgorithm::initAlgorithm( const QVariantMap & )
addParameter( new QgsProcessingParameterRasterLayer( QStringLiteral( "INPUT" ), QStringLiteral( "Input raster" ) ) );
addParameter( new QgsProcessingParameterBand( QStringLiteral( "BAND" ), QObject::tr( "Band number" ), 1, QStringLiteral( "INPUT" ) ) );
addParameter( new QgsProcessingParameterEnum( QStringLiteral( "ROUNDING_DIRECTION" ), QObject::tr( "Rounding direction" ), QStringList() << QObject::tr( "Round up" ) << QObject::tr( "Round to nearest" ) << QObject::tr( "Round down" ), false, 1 ) );
addParameter( new QgsProcessingParameterNumber( QStringLiteral( "DECIMAL_PLACES" ), QObject::tr( "Number of decimals places (use negative values to round cell values to a multiple of a base n, see advanced parameters)" ), QgsProcessingParameterNumber::Integer, 2 ) );
addParameter( new QgsProcessingParameterNumber( QStringLiteral( "DECIMAL_PLACES" ), QObject::tr( "Number of decimals places" ), QgsProcessingParameterNumber::Integer, 2 ) );
addParameter( new QgsProcessingParameterRasterDestination( QStringLiteral( "OUTPUT" ), QObject::tr( "Output raster" ) ) );
std::unique_ptr< QgsProcessingParameterDefinition > baseParameter = qgis::make_unique< QgsProcessingParameterNumber >( QStringLiteral( "BASE_N" ), QObject::tr( "Base n (provides the base rounding raster values near/up/down to multiples of n when Decimal parameter is negative)" ), QgsProcessingParameterNumber::Integer, 10, true, 1 );
baseParameter->setFlags( QgsProcessingParameterDefinition::FlagAdvanced );
@ -59,11 +59,11 @@ void QgsRoundRasterValuesAlgorithm::initAlgorithm( const QVariantMap & )
QString QgsRoundRasterValuesAlgorithm::shortHelpString() const
{
return QObject::tr( "This algorithm rounds the cell values of a rasterdataset according to the specified number of decimals.\n "
return QObject::tr( "This algorithm rounds the cell values of a raster dataset according to the specified number of decimals.\n "
"Alternatively, a negative number of decimal places may be used to round values to powers of a base n "
"(specified in the advanced parameter Base n). For example, with a Base value n of 10 and Decimal places of -1 "
"the algorithm rounds cell values to multiples of 10, -2 rounds to multiples of 100, and so on. Arbitrary base values "
"may be chosen, the algorithm applies the same multiplicative principle.Rounding cell values to multiples of "
"may be chosen, the algorithm applies the same multiplicative principle. Rounding cell values to multiples of "
"a base n may be used to generalize raster layers.\n"
"The algorithm preserves the data type of the input raster. Therefore byte/integer rasters can only be rounded "
"to multiples of a base n, otherwise a warning is raised and the raster gets copied as byte/integer raster" );
@ -77,21 +77,21 @@ QgsRoundRasterValuesAlgorithm *QgsRoundRasterValuesAlgorithm::createInstance() c
bool QgsRoundRasterValuesAlgorithm::prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback )
{
Q_UNUSED( feedback );
mInputRaster = parameterAsRasterLayer( parameters, QStringLiteral( "INPUT" ), context );
QgsRasterLayer *inputRaster = parameterAsRasterLayer( parameters, QStringLiteral( "INPUT" ), context );
mDecimalPrecision = parameterAsInt( parameters, QStringLiteral( "DECIMAL_PLACES" ), context );
mBaseN = parameterAsInt( parameters, QStringLiteral( "BASE_N" ), context );
mMultipleOfBaseN = pow( mBaseN, abs( mDecimalPrecision ) );
if ( !mInputRaster )
if ( !inputRaster )
throw QgsProcessingException( invalidRasterError( parameters, QStringLiteral( "INPUT" ) ) );
mBand = parameterAsInt( parameters, QStringLiteral( "BAND" ), context );
if ( mBand < 1 || mBand > mInputRaster->bandCount() )
throw QgsProcessingException( QObject::tr( "Invalid band number for BAND (%1): Valid values for input raster are 1 to %2" ).arg( mBand ).arg( mInputRaster->bandCount() ) );
if ( mBand < 1 || mBand > inputRaster->bandCount() )
throw QgsProcessingException( QObject::tr( "Invalid band number for BAND (%1): Valid values for input raster are 1 to %2" ).arg( mBand ).arg( inputRaster->bandCount() ) );
mRoundingDirection = parameterAsEnum( parameters, QStringLiteral( "ROUNDING_DIRECTION" ), context );
mInterface.reset( mInputRaster->dataProvider()->clone() );
mInterface.reset( inputRaster->dataProvider()->clone() );
mDataType = mInterface->dataType( mBand );
switch ( mDataType )
@ -110,11 +110,11 @@ bool QgsRoundRasterValuesAlgorithm::prepareAlgorithm( const QVariantMap &paramet
break;
}
mInputNoDataValue = mInputRaster->dataProvider()->sourceNoDataValue( mBand );
mExtent = mInputRaster->extent();
mLayerWidth = mInputRaster->width();
mLayerHeight = mInputRaster->height();
mCrs = mInputRaster->crs();
mInputNoDataValue = inputRaster->dataProvider()->sourceNoDataValue( mBand );
mExtent = inputRaster->extent();
mLayerWidth = inputRaster->width();
mLayerHeight = inputRaster->height();
mCrs = inputRaster->crs();
mNbCellsXProvider = mInterface->xSize();
mNbCellsYProvider = mInterface->ySize();
return true;

1
src/analysis/processing/qgsalgorithmroundrastervalues.h
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@ -62,7 +62,6 @@ class QgsRoundRasterValuesAlgorithm : public QgsProcessingAlgorithm
double roundUpBaseN( double &value, int &multipleOfBaseN );
double roundDownBaseN( double &value, int &multipleOfBaseN );
QgsRasterLayer *mInputRaster;
int mDecimalPrecision = 2;
int mBaseN = 10;
int mMultipleOfBaseN;