Qwt date and time problem

[CassioTC]

overflow.jpgHello,

I'm trying to show date and time in the axis scale getting the values from datadase and seting to a double like this:

xData->push_back( QString(dt.date().toString("yyyyMMdd") + dt.time().toString("hhmmss")).toDouble() );

xData->push_back( QString(dt.date().toString("yyyyMMdd") + dt.time().toString("hhmmss")).toDouble() );

To copy to clipboard, switch view to plain text mode 

xData will receive a double like this 20110825093005, but in the graph show me: 2,01108e+13.

I tried use this:

class TimeScaleDraw: public QwtScaleDraw
{
public:
    TimeScaleDraw(QString fmt):
        format(fmt)
    {
    }
    virtual QwtText label(double v) const
    {
        QDateTime t;
        QString data, hora;
 
        data = QString::number(v, 'f', 0).left(8);
        hora = QString::number(v, 'f', 0).right(6);
 
        t.setDate( QDate::fromString( data, "yyyyMMdd"));
        t.setTime( QTime::fromString( hora, "hhmmss"));
 
        return t.toString(format);
    }
private:
    QString format;
};

class TimeScaleDraw: public QwtScaleDraw
{
public:
    TimeScaleDraw(QString fmt):
        format(fmt)
    {
    }
    virtual QwtText label(double v) const
    {
        QDateTime t;
        QString data, hora;

        data = QString::number(v, 'f', 0).left(8);
        hora = QString::number(v, 'f', 0).right(6);

        t.setDate( QDate::fromString( data, "yyyyMMdd"));
        t.setTime( QTime::fromString( hora, "hhmmss"));

        return t.toString(format);
    }
private:
    QString format;
};

To copy to clipboard, switch view to plain text mode 

But the double v value that i receive ignores time value, something like this: 20110825000000. Works for the data, but not for the time.