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.
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

Definition at line 143 of file qwt_samples.h.

Constructor & Destructor Documentation

QwtOHLCSample()

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

Definition at line 182 of file qwt_samples.h.

Member Function Documentation

boundingInterval()

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()

Definition at line 220 of file qwt_samples.h.

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

Definition at line 203 of file qwt_samples.h.

Member Data Documentation

close

double QwtOHLCSample::close

Closing price.

Definition at line 170 of file qwt_samples.h.

high

double QwtOHLCSample::high

Highest price.

Definition at line 164 of file qwt_samples.h.

low

double QwtOHLCSample::low

Lowest price.

Definition at line 167 of file qwt_samples.h.

open

double QwtOHLCSample::open

Opening price.

Definition at line 161 of file qwt_samples.h.

time

double QwtOHLCSample::time

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

Definition at line 158 of file qwt_samples.h.