QwtOHLCSample Class Reference

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

#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. More...
bool	isValid () const
	Check if a sample is valid. More...

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 ( double  t = 0.0, double  o = 0.0, double  h = 0.0, double  l = 0.0, double  c = 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.