TimeseriesQwt Class Reference

#include <timeseries_qwt.h>

Inheritance diagram for TimeseriesQwt:

List of all members.

Public Types
enum	Transform { noTransform, firstDerivative, secondDerivative, XYPlot }
Public Slots
void	setTimeOffset (double offset)
Public Member Functions
virtual QRectF	boundingRect () const override
PlotDataPtr	data ()
PlotData::RangeTimeOpt	getVisualizationRangeX ()
PlotData::RangeValueOpt	getVisualizationRangeY (int first_index, int last_index)
virtual QPointF	sample (size_t i) const override
nonstd::optional< QPointF >	sampleFromTime (double t)
void	setAlternativeAxisX (PlotDataPtr new_x_data)
void	setSubsampleFactor ()
void	setTransform (Transform trans)
virtual size_t	size () const override
double	timeOffset () const
	TimeseriesQwt (PlotDataPtr base)
Transform	transform () const
void	updateData ()
virtual	~TimeseriesQwt ()
Private Attributes
PlotDataPtr	_alternative_X_axis
QRectF	_bounding_box
std::vector< QPointF >	_cached_transformed_curve
PlotDataPtr	_plot_data
unsigned	_subsample
double	_time_offset
Transform	_transform

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Detailed Description

Definition at line 9 of file timeseries_qwt.h.

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Member Enumeration Documentation

enum TimeseriesQwt::Transform

Enumerator:

noTransform
firstDerivative
secondDerivative
XYPlot

Definition at line 37 of file timeseries_qwt.h.

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Constructor & Destructor Documentation

TimeseriesQwt::TimeseriesQwt

(

PlotDataPtr

base

)

Definition at line 7 of file timeseries_qwt.cpp.

virtual TimeseriesQwt::~TimeseriesQwt

(

)

[inline, virtual]

Definition at line 15 of file timeseries_qwt.h.

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Member Function Documentation

QRectF TimeseriesQwt::boundingRect

(

)

const [override, virtual]

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

Implements QwtSeriesData< QPointF >.

Definition at line 26 of file timeseries_qwt.cpp.

PlotDataPtr TimeseriesQwt::data

(

)

[inline]

Definition at line 23 of file timeseries_qwt.h.

PlotData::RangeTimeOpt TimeseriesQwt::getVisualizationRangeX

(

)

Definition at line 170 of file timeseries_qwt.cpp.

PlotData::RangeValueOpt TimeseriesQwt::getVisualizationRangeY	(	int	first_index,
		int	last_index
	)

Definition at line 181 of file timeseries_qwt.cpp.

QPointF TimeseriesQwt::sample

(

size_t

i

)

const [override, virtual]

Return a sample

Parameters:

i

Index

Returns:

Sample at position i

Implements QwtSeriesData< QPointF >.

Definition at line 16 of file timeseries_qwt.cpp.

nonstd::optional< QPointF > TimeseriesQwt::sampleFromTime

(

double

t

)

Definition at line 213 of file timeseries_qwt.cpp.

void TimeseriesQwt::setAlternativeAxisX

(

PlotDataPtr

new_x_data

)

Definition at line 208 of file timeseries_qwt.cpp.

void TimeseriesQwt::setSubsampleFactor

(

)

Definition at line 39 of file timeseries_qwt.cpp.

void TimeseriesQwt::setTimeOffset

(

double

offset

)

[slot]

Definition at line 245 of file timeseries_qwt.cpp.

void TimeseriesQwt::setTransform

(

TimeseriesQwt::Transform

trans

)

Definition at line 236 of file timeseries_qwt.cpp.

size_t TimeseriesQwt::size

(

)

const [override, virtual]

Returns:

Number of samples

Implements QwtSeriesData< QPointF >.

Definition at line 31 of file timeseries_qwt.cpp.

double TimeseriesQwt::timeOffset

(

)

const [inline]

Definition at line 48 of file timeseries_qwt.h.

Transform TimeseriesQwt::transform

(

)

const [inline]

Definition at line 46 of file timeseries_qwt.h.

void TimeseriesQwt::updateData

(

)

Definition at line 44 of file timeseries_qwt.cpp.

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Member Data Documentation

PlotDataPtr TimeseriesQwt::_alternative_X_axis [private]

Definition at line 63 of file timeseries_qwt.h.

QRectF TimeseriesQwt::_bounding_box [private]

Definition at line 65 of file timeseries_qwt.h.

std::vector<QPointF> TimeseriesQwt::_cached_transformed_curve [private]

Definition at line 57 of file timeseries_qwt.h.

PlotDataPtr TimeseriesQwt::_plot_data [private]

Definition at line 55 of file timeseries_qwt.h.

unsigned TimeseriesQwt::_subsample [private]

Definition at line 59 of file timeseries_qwt.h.

double TimeseriesQwt::_time_offset [private]

Definition at line 67 of file timeseries_qwt.h.

Transform TimeseriesQwt::_transform [private]

Definition at line 61 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