virtual QwtText trackerText( const QwtDoublePoint& p ) const
{
QwtText t(QString("%1 %2, %3 V").arg(p.x(), 0, 'f', GetTimePrecision()).
virtual QwtText trackerText( const QwtDoublePoint& p ) const
{
QwtText t(QString("%1 %2, %3 V").arg(p.x(), 0, 'f', GetTimePrecision()).