QwtOHLCSample man page

QwtOHLCSample —

Open-High-Low-Close sample used in financial charts.

Synopsis

#include <qwt_samples.h>

Public Member Functions

QwtOHLCSample (double time=0.0, double open=0.0, double high=0.0, double low=0.0, double close=0.0)

QwtInterval boundingInterval () const
Calculate the bounding interval of the OHLC values.
bool isValid () const
Check if a sample is valid.

Public Attributes

double time

double open
Opening price.
double high
Highest price.
double low
Lowest price.
double close
Closing price.

Detailed Description

Open-High-Low-Close sample used in financial charts.

In financial charts the movement of a price in a time interval is often represented by the opening/closing prices and the lowest/highest prices in this interval.

See Also:

QwtTradingChartData

Constructor & Destructor Documentation

QwtOHLCSample::QwtOHLCSample (doublet = 0.0, doubleo = 0.0, doubleh = 0.0, doublel = 0.0, doublec = 0.0) [inline]

Constructor

Parameters:

t Time value
o Open value
h High value
l Low value
c Close value

Member Function Documentation

QwtInterval QwtOHLCSample::boundingInterval () const [inline]

Calculate the bounding interval of the OHLC values. For valid samples the limits of this interval are always low/high.

Returns:

Bounding interval

See Also:

isValid()

bool QwtOHLCSample::isValid () const [inline]

Check if a sample is valid. A sample is valid, when all of the following checks are true:

·
low <= high
·
low <= open <= high
·
low <= close <= high

Returns:

True, when the sample is valid

Member Data Documentation

double QwtOHLCSample::time

Time of the sample, usually a number representing a specific interval - like a day.

Author

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Info

Thu Dec 11 2014 Version 6.1.2 Qwt User's Guide