table of contents
QwtIntervalData(3) | Qwt User's Guide | QwtIntervalData(3) |
NAME¶
QwtIntervalData -SYNOPSIS¶
#include <qwt_interval_data.h>Public Member Functions¶
QwtIntervalData ()
Detailed Description¶
Series of samples of a value and an interval. QwtIntervalData is a series of samples of a value and an interval. F.e. error bars are built from samples [x, y1-y2], while a histogram might consist of [x1-x2, y] samples.Member Function Documentation¶
QwtDoubleRect QwtIntervalData::boundingRect () const¶
Calculate the bounding rectangle of the samples The x coordinates of the rectangle are built from the intervals, the y coordinates from the values. Returns:Bounding rectangle
const QwtDoubleInterval & QwtIntervalData::interval (size_ti) const [inline]¶
Interval of a sample Parameters:i Sample index
Returns:
Interval
See also:
value(), size()
size_t QwtIntervalData::size () const [inline]¶
Returns:Number of samples
double QwtIntervalData::value (size_ti) const [inline]¶
Value of a sample Parameters:i Sample index
Returns:
Value
See also:
interval(), size()
Author¶
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