QwtTimeseries Class Reference

#include <timeseries_qwt.h>

Inheritance diagram for QwtTimeseries:

Public Member Functions
QRectF	boundingRect () const override
virtual RangeOpt	getVisualizationRangeX () override
virtual RangeOpt	getVisualizationRangeY (Range range_X) override
	QwtTimeseries (const PlotData *data)
QPointF	sample (size_t i) const override
virtual std::optional< QPointF >	sampleFromTime (double t)
void	setTimeOffset (double offset)
void	updateCache (bool) override
Public Member Functions inherited from QwtSeriesWrapper
virtual const PlotDataXY *	plotData () const
	QwtSeriesWrapper (const PlotDataXY *data)
size_t	size () const override
Public Member Functions inherited from QwtSeriesData< QPointF >
	QwtSeriesData ()
	Constructor. More...
virtual void	setRectOfInterest (const QRectF &rect)
virtual	~QwtSeriesData ()
	Destructor. More...

Protected Attributes
double	_time_offset = 0.0
const PlotData *	_ts_data
Protected Attributes inherited from QwtSeriesData< QPointF >
QRectF	cachedBoundingRect
	Can be used to cache a calculated bounding rectangle. More...

Detailed Description

Definition at line 44 of file timeseries_qwt.h.

Constructor & Destructor Documentation

QwtTimeseries()

QwtTimeseries::QwtTimeseries ( const PlotData *  data )

inline

Definition at line 47 of file timeseries_qwt.h.

Member Function Documentation

boundingRect()

QRectF QwtTimeseries::boundingRect ( ) const

overridevirtual

Calculate the bounding rect of all samples

The bounding rect is necessary for autoscaling and can be used for a couple of painting optimizations.

qwtBoundingRect(...) offers slow implementations iterating over the samples. For large sets it is recommended to implement something faster f.e. by caching the bounding rectangle.

Returns

Bounding rectangle

Reimplemented from QwtSeriesWrapper.

Definition at line 156 of file timeseries_qwt.cpp.

getVisualizationRangeX()

RangeOpt QwtTimeseries::getVisualizationRangeX ( )

overridevirtual

Reimplemented from QwtSeriesWrapper.

Reimplemented in PointSeriesXY.

Definition at line 207 of file timeseries_qwt.cpp.

getVisualizationRangeY()

RangeOpt QwtTimeseries::getVisualizationRangeY ( Range  range_X )

overridevirtual

Reimplemented from QwtSeriesWrapper.

Reimplemented in PointSeriesXY.

Definition at line 32 of file timeseries_qwt.cpp.

sample()

QPointF QwtTimeseries::sample ( size_t  i ) const

overridevirtual

Return a sample

Parameters

i

Index

Returns

Sample at position i

Reimplemented from QwtSeriesWrapper.

Definition at line 179 of file timeseries_qwt.cpp.

sampleFromTime()

std::optional< QPointF > QwtTimeseries::sampleFromTime ( double  t )

virtual

Reimplemented in PointSeriesXY.

Definition at line 59 of file timeseries_qwt.cpp.

setTimeOffset()

void QwtTimeseries::setTimeOffset

(

double

offset

)

Definition at line 190 of file timeseries_qwt.cpp.

updateCache()

void QwtTimeseries::updateCache ( bool  )

inlineoverridevirtual

Reimplemented from QwtSeriesWrapper.

Reimplemented in TransformedTimeseries.

Definition at line 63 of file timeseries_qwt.h.

Member Data Documentation

_time_offset

double QwtTimeseries::_time_offset = 0.0

protected

Definition at line 69 of file timeseries_qwt.h.

_ts_data

const PlotData* QwtTimeseries::_ts_data

protected

Definition at line 68 of file timeseries_qwt.h.

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The documentation for this class was generated from the following files:

• timeseries_qwt.h
• timeseries_qwt.cpp