BooleanType Matrix::isDiagonal( ) const
{
if (isSquare() == BT_FALSE)
return BT_FALSE;
for (unsigned i = 0; i < getNumRows( ); ++i)
for (unsigned j = 0; j < getNumCols( ); ++j)
if ((i != j) && (acadoIsZero( operator()(i, j) ) == BT_FALSE))
return BT_FALSE;
return BT_TRUE;
}
returnValue PlotWindow::getAutoScaleYLimits( const VariablesGrid& dataGridY,
PlotFormat plotFormat,
double& lowerLimit,
double& upperLimit
) const
{
double maxValue = dataGridY.getMax( );
double minValue = dataGridY.getMin( );
double meanValue = dataGridY.getMean( );
if ( ( acadoIsZero( maxValue ) == BT_TRUE ) && ( acadoIsZero( minValue ) == BT_TRUE ) )
meanValue = 0.1 / 0.025;
lowerLimit = minValue - 0.1*( maxValue-minValue ) - 0.025*meanValue - 1.0e-8;
upperLimit = maxValue + 0.1*( maxValue-minValue ) + 0.025*meanValue + 1.0e-8;
if ( ( plotFormat == PF_LOG ) || ( plotFormat == PF_LOG_LOG ) )
{
if ( ( acadoIsStrictlyGreater( minValue,0.0, ZERO ) == BT_TRUE ) && ( acadoIsGreater( lowerLimit,0.0, ZERO ) == BT_FALSE ) )
{
lowerLimit = ( minValue + acadoMin( minValue,EPS ) ) / sqrt(10.0);
upperLimit = upperLimit * sqrt(10.0);
}
}
else
{
if ( ( acadoIsStrictlyGreater( minValue,0.0, ZERO ) == BT_TRUE ) && ( acadoIsGreater( lowerLimit,0.0, ZERO ) == BT_FALSE ) )
lowerLimit = 0.0;
if ( ( acadoIsStrictlySmaller( maxValue,0.0 ) == BT_TRUE ) && ( acadoIsSmaller( upperLimit,0.0 ) == BT_FALSE ) )
upperLimit = 0.0;
}
return SUCCESSFUL_RETURN;
}
