QCustomPlot using timestamp to set Date along one axis

[anda_skoa]

The first column looks like a date formatted as a YYYYMMDD string.

Cheers,
_

[bandito]

The first column looks like a date formatted as a YYYYMMDD string.

Cheers,
_

You are correct. Thanks!

I came up with this function to convert the QString to a double value timestamp.

double timeStamp(QString qs){
    char tempDate[10];
    memcpy(tempDate, qs.toStdString().c_str(), 10);
    char date[] = "          ";
    date[0] = tempDate[0];
    date[1] = tempDate[1];
    date[2] = tempDate[2];
    date[3] = tempDate[3];
    date[4] = '\0';
    date[5] = tempDate[4];
    date[6] = tempDate[5];
    date[7] = '\0';
    date[8] = tempDate[6];
    date[9] = tempDate[7];
 
    struct tm tmdate = {0};
    tmdate.tm_year = atoi(&date[0]) - 1900;
    tmdate.tm_mon = atoi(&date[5]) - 1;
    tmdate.tm_mday = atoi(&date[8]);
    time_t t = mktime( &tmdate );
 
    double actual_time_sec = difftime(t,0);
 
    return actual_time_sec;
}

double timeStamp(QString qs){
    char tempDate[10];
    memcpy(tempDate, qs.toStdString().c_str(), 10);
    char date[] = "          ";
    date[0] = tempDate[0];
    date[1] = tempDate[1];
    date[2] = tempDate[2];
    date[3] = tempDate[3];
    date[4] = '\0';
    date[5] = tempDate[4];
    date[6] = tempDate[5];
    date[7] = '\0';
    date[8] = tempDate[6];
    date[9] = tempDate[7];

    struct tm tmdate = {0};
    tmdate.tm_year = atoi(&date[0]) - 1900;
    tmdate.tm_mon = atoi(&date[5]) - 1;
    tmdate.tm_mday = atoi(&date[8]);
    time_t t = mktime( &tmdate );

    double actual_time_sec = difftime(t,0);

    return actual_time_sec;
}

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[Lesiok]

In one line :

double timeStamp(QString qs){
    return QDateTime(QDate::fromString(qs,"yyyyMMdd"),QTime(0,0,0)).toTime_t();
}

double timeStamp(QString qs){
    return QDateTime(QDate::fromString(qs,"yyyyMMdd"),QTime(0,0,0)).toTime_t();
}

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[bandito]

In one line :

double timeStamp(QString qs){
    return QDateTime(QDate::fromString(qs,"yyyyMMdd"),QTime(0,0,0)).toTime_t();
}

double timeStamp(QString qs){
    return QDateTime(QDate::fromString(qs,"yyyyMMdd"),QTime(0,0,0)).toTime_t();
}

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Wow that's sexy. Thanks!