A plottable representing a graph in a plot. More...

#include <qcustomplot.h>

Inheritance diagram for QCPGraph:

[legend]

Collaboration diagram for QCPGraph:

[legend]

Public Types
enum	LineStyle { lsNone , lsLine , lsStepLeft , lsStepRight , lsStepCenter , lsImpulse , lsNone , lsLine , lsStepLeft , lsStepRight , lsStepCenter , lsImpulse }

enum	LineStyle { lsNone , lsLine , lsStepLeft , lsStepRight , lsStepCenter , lsImpulse , lsNone , lsLine , lsStepLeft , lsStepRight , lsStepCenter , lsImpulse }

enum	ErrorType { etNone , etKey , etValue , etBoth }

Public Member Functions
	QCPGraph (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPGraph ()

QSharedPointer< QCPGraphDataContainer >	data () const

LineStyle	lineStyle () const

QCPScatterStyle	scatterStyle () const

int	scatterSkip () const

QCPGraph *	channelFillGraph () const

bool	adaptiveSampling () const

void	setData (QSharedPointer< QCPGraphDataContainer > data)

void	setData (const QVector< double > &keys, const QVector< double > &values, bool alreadySorted=false)

void	setLineStyle (LineStyle ls)

void	setScatterStyle (const QCPScatterStyle &style)

void	setScatterSkip (int skip)

void	setChannelFillGraph (QCPGraph *targetGraph)

void	setAdaptiveSampling (bool enabled)

void	addData (const QVector< double > &keys, const QVector< double > &values, bool alreadySorted=false)

void	addData (double key, double value)

virtual double	selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=0) const

virtual QCPRange	getKeyRange (bool &foundRange, QCP::SignDomain inSignDomain=QCP::sdBoth) const

virtual QCPRange	getValueRange (bool &foundRange, QCP::SignDomain inSignDomain=QCP::sdBoth, const QCPRange &inKeyRange=QCPRange()) const

	QCPGraph (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPGraph ()

QCPDataMap *	data () const

LineStyle	lineStyle () const

QCPScatterStyle	scatterStyle () const

ErrorType	errorType () const

QPen	errorPen () const

double	errorBarSize () const

bool	errorBarSkipSymbol () const

QCPGraph *	channelFillGraph () const

bool	adaptiveSampling () const

void	setData (QCPDataMap *data, bool copy=false)

void	setData (const QVector< double > &key, const QVector< double > &value)

void	setDataKeyError (const QVector< double > &key, const QVector< double > &value, const QVector< double > &keyError)

void	setDataKeyError (const QVector< double > &key, const QVector< double > &value, const QVector< double > &keyErrorMinus, const QVector< double > &keyErrorPlus)

void	setDataValueError (const QVector< double > &key, const QVector< double > &value, const QVector< double > &valueError)

void	setDataValueError (const QVector< double > &key, const QVector< double > &value, const QVector< double > &valueErrorMinus, const QVector< double > &valueErrorPlus)

void	setDataBothError (const QVector< double > &key, const QVector< double > &value, const QVector< double > &keyError, const QVector< double > &valueError)

void	setDataBothError (const QVector< double > &key, const QVector< double > &value, const QVector< double > &keyErrorMinus, const QVector< double > &keyErrorPlus, const QVector< double > &valueErrorMinus, const QVector< double > &valueErrorPlus)

void	setLineStyle (LineStyle ls)

void	setScatterStyle (const QCPScatterStyle &style)

void	setErrorType (ErrorType errorType)

void	setErrorPen (const QPen &pen)

void	setErrorBarSize (double size)

void	setErrorBarSkipSymbol (bool enabled)

void	setChannelFillGraph (QCPGraph *targetGraph)

void	setAdaptiveSampling (bool enabled)

void	addData (const QCPDataMap &dataMap)

void	addData (const QCPData &data)

void	addData (double key, double value)

void	addData (const QVector< double > &keys, const QVector< double > &values)

void	removeDataBefore (double key)

void	removeDataAfter (double key)

void	removeData (double fromKey, double toKey)

void	removeData (double key)

virtual void	clearData ()

virtual double	selectTest (const QPointF &pos, bool onlySelectable, QVariant *details=0) const

void	rescaleAxes (bool onlyEnlarge, bool includeErrorBars) const

void	rescaleKeyAxis (bool onlyEnlarge, bool includeErrorBars) const

void	rescaleValueAxis (bool onlyEnlarge, bool includeErrorBars) const

void	rescaleAxes (bool onlyEnlarge=false) const

void	rescaleAxes (bool onlyEnlarge=false) const

void	rescaleKeyAxis (bool onlyEnlarge=false) const

void	rescaleKeyAxis (bool onlyEnlarge=false) const

void	rescaleValueAxis (bool onlyEnlarge=false, bool inKeyRange=false) const

void	rescaleValueAxis (bool onlyEnlarge=false) const

Public Member Functions inherited from QCPAbstractPlottable1D< QCPGraphData >
	QCPAbstractPlottable1D (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPAbstractPlottable1D ()

virtual int	dataCount () const

virtual double	dataMainKey (int index) const

virtual double	dataSortKey (int index) const

virtual double	dataMainValue (int index) const

virtual QCPRange	dataValueRange (int index) const

virtual QPointF	dataPixelPosition (int index) const

virtual bool	sortKeyIsMainKey () const

virtual QCPDataSelection	selectTestRect (const QRectF &rect, bool onlySelectable) const

virtual int	findBegin (double sortKey, bool expandedRange=true) const

virtual int	findEnd (double sortKey, bool expandedRange=true) const

virtual QCPPlottableInterface1D *	interface1D ()

Public Member Functions inherited from QCPAbstractPlottable
	QCPAbstractPlottable (QCPAxis keyAxis, QCPAxis valueAxis)

virtual	~QCPAbstractPlottable ()

QString	name () const

bool	antialiasedFill () const

bool	antialiasedScatters () const

QPen	pen () const

QBrush	brush () const

QCPAxis *	keyAxis () const

QCPAxis *	valueAxis () const

QCP::SelectionType	selectable () const

bool	selected () const

QCPDataSelection	selection () const

QCPSelectionDecorator *	selectionDecorator () const

void	setName (const QString &name)

void	setAntialiasedFill (bool enabled)

void	setAntialiasedScatters (bool enabled)

void	setPen (const QPen &pen)

void	setBrush (const QBrush &brush)

void	setKeyAxis (QCPAxis *axis)

void	setValueAxis (QCPAxis *axis)

Q_SLOT void	setSelectable (QCP::SelectionType selectable)

Q_SLOT void	setSelection (QCPDataSelection selection)

void	setSelectionDecorator (QCPSelectionDecorator *decorator)

void	coordsToPixels (double key, double value, double &x, double &y) const

const QPointF	coordsToPixels (double key, double value) const

void	pixelsToCoords (double x, double y, double &key, double &value) const

void	pixelsToCoords (const QPointF &pixelPos, double &key, double &value) const

void	rescaleAxes (bool onlyEnlarge=false) const

void	rescaleKeyAxis (bool onlyEnlarge=false) const

void	rescaleValueAxis (bool onlyEnlarge=false, bool inKeyRange=false) const

bool	addToLegend (QCPLegend *legend)

bool	addToLegend ()

bool	removeFromLegend (QCPLegend *legend) const

bool	removeFromLegend () const

	QCPAbstractPlottable (QCPAxis keyAxis, QCPAxis valueAxis)

QString	name () const

bool	antialiasedFill () const

bool	antialiasedScatters () const

bool	antialiasedErrorBars () const

QPen	pen () const

QPen	selectedPen () const

QBrush	brush () const

QBrush	selectedBrush () const

QCPAxis *	keyAxis () const

QCPAxis *	valueAxis () const

bool	selectable () const

bool	selected () const

void	setName (const QString &name)

void	setAntialiasedFill (bool enabled)

void	setAntialiasedScatters (bool enabled)

void	setAntialiasedErrorBars (bool enabled)

void	setPen (const QPen &pen)

void	setSelectedPen (const QPen &pen)

void	setBrush (const QBrush &brush)

void	setSelectedBrush (const QBrush &brush)

void	setKeyAxis (QCPAxis *axis)

void	setValueAxis (QCPAxis *axis)

Q_SLOT void	setSelectable (bool selectable)

Q_SLOT void	setSelected (bool selected)

virtual bool	addToLegend ()

virtual bool	removeFromLegend () const

void	rescaleAxes (bool onlyEnlarge=false) const

void	rescaleKeyAxis (bool onlyEnlarge=false) const

void	rescaleValueAxis (bool onlyEnlarge=false) const

Public Member Functions inherited from QCPLayerable
	QCPLayerable (QCustomPlot plot, QString targetLayer=QString(), QCPLayerable parentLayerable=0)

virtual	~QCPLayerable ()

bool	visible () const

QCustomPlot *	parentPlot () const

QCPLayerable *	parentLayerable () const

QCPLayer *	layer () const

bool	antialiased () const

void	setVisible (bool on)

Q_SLOT bool	setLayer (QCPLayer *layer)

bool	setLayer (const QString &layerName)

void	setAntialiased (bool enabled)

bool	realVisibility () const

	QCPLayerable (QCustomPlot plot, QString targetLayer=QString(), QCPLayerable parentLayerable=0)

	~QCPLayerable ()

bool	visible () const

QCustomPlot *	parentPlot () const

QCPLayerable *	parentLayerable () const

QCPLayer *	layer () const

bool	antialiased () const

void	setVisible (bool on)

Q_SLOT bool	setLayer (QCPLayer *layer)

bool	setLayer (const QString &layerName)

void	setAntialiased (bool enabled)

bool	realVisibility () const

Public Member Functions inherited from QCPPlottableInterface1D
virtual	~QCPPlottableInterface1D ()

Protected Member Functions
virtual void	draw (QCPPainter *painter)

virtual void	drawLegendIcon (QCPPainter *painter, const QRectF &rect) const

virtual void	drawFill (QCPPainter painter, QVector< QPointF > lines) const

virtual void	drawScatterPlot (QCPPainter *painter, const QVector< QPointF > &scatters, const QCPScatterStyle &style) const

virtual void	drawLinePlot (QCPPainter *painter, const QVector< QPointF > &lines) const

virtual void	drawImpulsePlot (QCPPainter *painter, const QVector< QPointF > &lines) const

virtual void	getOptimizedLineData (QVector< QCPGraphData > *lineData, const QCPGraphDataContainer::const_iterator &begin, const QCPGraphDataContainer::const_iterator &end) const

virtual void	getOptimizedScatterData (QVector< QCPGraphData > *scatterData, QCPGraphDataContainer::const_iterator begin, QCPGraphDataContainer::const_iterator end) const

void	getVisibleDataBounds (QCPGraphDataContainer::const_iterator &begin, QCPGraphDataContainer::const_iterator &end, const QCPDataRange &rangeRestriction) const

void	getLines (QVector< QPointF > *lines, const QCPDataRange &dataRange) const

void	getScatters (QVector< QPointF > *scatters, const QCPDataRange &dataRange) const

QVector< QPointF >	dataToLines (const QVector< QCPGraphData > &data) const

QVector< QPointF >	dataToStepLeftLines (const QVector< QCPGraphData > &data) const

QVector< QPointF >	dataToStepRightLines (const QVector< QCPGraphData > &data) const

QVector< QPointF >	dataToStepCenterLines (const QVector< QCPGraphData > &data) const

QVector< QPointF >	dataToImpulseLines (const QVector< QCPGraphData > &data) const

QVector< QCPDataRange >	getNonNanSegments (const QVector< QPointF > *lineData, Qt::Orientation keyOrientation) const

QVector< QPair< QCPDataRange, QCPDataRange > >	getOverlappingSegments (QVector< QCPDataRange > thisSegments, const QVector< QPointF > thisData, QVector< QCPDataRange > otherSegments, const QVector< QPointF > otherData) const

bool	segmentsIntersect (double aLower, double aUpper, double bLower, double bUpper, int &bPrecedence) const

QPointF	getFillBasePoint (QPointF matchingDataPoint) const

const QPolygonF	getFillPolygon (const QVector< QPointF > *lineData, QCPDataRange segment) const

const QPolygonF	getChannelFillPolygon (const QVector< QPointF > lineData, QCPDataRange thisSegment, const QVector< QPointF > otherData, QCPDataRange otherSegment) const

int	findIndexBelowX (const QVector< QPointF > *data, double x) const

int	findIndexAboveX (const QVector< QPointF > *data, double x) const

int	findIndexBelowY (const QVector< QPointF > *data, double y) const

int	findIndexAboveY (const QVector< QPointF > *data, double y) const

double	pointDistance (const QPointF &pixelPoint, QCPGraphDataContainer::const_iterator &closestData) const

virtual void	draw (QCPPainter *painter)

virtual void	drawLegendIcon (QCPPainter *painter, const QRectF &rect) const

virtual QCPRange	getKeyRange (bool &foundRange, SignDomain inSignDomain=sdBoth) const

virtual QCPRange	getValueRange (bool &foundRange, SignDomain inSignDomain=sdBoth) const

virtual QCPRange	getKeyRange (bool &foundRange, SignDomain inSignDomain, bool includeErrors) const

virtual QCPRange	getValueRange (bool &foundRange, SignDomain inSignDomain, bool includeErrors) const

virtual void	drawFill (QCPPainter painter, QVector< QPointF > lineData) const

virtual void	drawScatterPlot (QCPPainter painter, QVector< QCPData > scatterData) const

virtual void	drawLinePlot (QCPPainter painter, QVector< QPointF > lineData) const

virtual void	drawImpulsePlot (QCPPainter painter, QVector< QPointF > lineData) const

void	getPreparedData (QVector< QCPData > lineData, QVector< QCPData > scatterData) const

void	getPlotData (QVector< QPointF > lineData, QVector< QCPData > scatterData) const

void	getScatterPlotData (QVector< QCPData > *scatterData) const

void	getLinePlotData (QVector< QPointF > linePixelData, QVector< QCPData > scatterData) const

void	getStepLeftPlotData (QVector< QPointF > linePixelData, QVector< QCPData > scatterData) const

void	getStepRightPlotData (QVector< QPointF > linePixelData, QVector< QCPData > scatterData) const

void	getStepCenterPlotData (QVector< QPointF > linePixelData, QVector< QCPData > scatterData) const

void	getImpulsePlotData (QVector< QPointF > linePixelData, QVector< QCPData > scatterData) const

void	drawError (QCPPainter *painter, double x, double y, const QCPData &data) const

void	getVisibleDataBounds (QCPDataMap::const_iterator &lower, QCPDataMap::const_iterator &upper) const

int	countDataInBounds (const QCPDataMap::const_iterator &lower, const QCPDataMap::const_iterator &upper, int maxCount) const

void	addFillBasePoints (QVector< QPointF > *lineData) const

void	removeFillBasePoints (QVector< QPointF > *lineData) const

QPointF	lowerFillBasePoint (double lowerKey) const

QPointF	upperFillBasePoint (double upperKey) const

const QPolygonF	getChannelFillPolygon (const QVector< QPointF > *lineData) const

int	findIndexBelowX (const QVector< QPointF > *data, double x) const

int	findIndexAboveX (const QVector< QPointF > *data, double x) const

int	findIndexBelowY (const QVector< QPointF > *data, double y) const

int	findIndexAboveY (const QVector< QPointF > *data, double y) const

double	pointDistance (const QPointF &pixelPoint) const

Protected Member Functions inherited from QCPAbstractPlottable1D< QCPGraphData >
void	getDataSegments (QList< QCPDataRange > &selectedSegments, QList< QCPDataRange > &unselectedSegments) const

void	drawPolyline (QCPPainter *painter, const QVector< QPointF > &lineData) const

Protected Member Functions inherited from QCPAbstractPlottable
virtual QRect	clipRect () const

virtual QCP::Interaction	selectionCategory () const

void	applyDefaultAntialiasingHint (QCPPainter *painter) const

virtual void	selectEvent (QMouseEvent event, bool additive, const QVariant &details, bool selectionStateChanged)

virtual void	deselectEvent (bool *selectionStateChanged)

void	applyFillAntialiasingHint (QCPPainter *painter) const

void	applyScattersAntialiasingHint (QCPPainter *painter) const

virtual QRect	clipRect () const

virtual QCP::Interaction	selectionCategory () const

void	applyDefaultAntialiasingHint (QCPPainter *painter) const

virtual void	selectEvent (QMouseEvent event, bool additive, const QVariant &details, bool selectionStateChanged)

virtual void	deselectEvent (bool *selectionStateChanged)

void	coordsToPixels (double key, double value, double &x, double &y) const

const QPointF	coordsToPixels (double key, double value) const

void	pixelsToCoords (double x, double y, double &key, double &value) const

void	pixelsToCoords (const QPointF &pixelPos, double &key, double &value) const

QPen	mainPen () const

QBrush	mainBrush () const

void	applyFillAntialiasingHint (QCPPainter *painter) const

void	applyScattersAntialiasingHint (QCPPainter *painter) const

void	applyErrorBarsAntialiasingHint (QCPPainter *painter) const

double	distSqrToLine (const QPointF &start, const QPointF &end, const QPointF &point) const

Protected Member Functions inherited from QCPLayerable
virtual void	parentPlotInitialized (QCustomPlot *parentPlot)

virtual void	mousePressEvent (QMouseEvent *event, const QVariant &details)

virtual void	mouseMoveEvent (QMouseEvent *event, const QPointF &startPos)

virtual void	mouseReleaseEvent (QMouseEvent *event, const QPointF &startPos)

virtual void	mouseDoubleClickEvent (QMouseEvent *event, const QVariant &details)

virtual void	wheelEvent (QWheelEvent *event)

void	initializeParentPlot (QCustomPlot *parentPlot)

void	setParentLayerable (QCPLayerable *parentLayerable)

bool	moveToLayer (QCPLayer *layer, bool prepend)

void	applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const

virtual void	parentPlotInitialized (QCustomPlot *parentPlot)

void	initializeParentPlot (QCustomPlot *parentPlot)

void	setParentLayerable (QCPLayerable *parentLayerable)

bool	moveToLayer (QCPLayer *layer, bool prepend)

void	applyAntialiasingHint (QCPPainter *painter, bool localAntialiased, QCP::AntialiasedElement overrideElement) const

Protected Attributes
LineStyle	mLineStyle

QCPScatterStyle	mScatterStyle

int	mScatterSkip

QPointer< QCPGraph >	mChannelFillGraph

bool	mAdaptiveSampling

QCPDataMap *	mData

QPen	mErrorPen

ErrorType	mErrorType

double	mErrorBarSize

bool	mErrorBarSkipSymbol

Protected Attributes inherited from QCPAbstractPlottable1D< QCPGraphData >
QSharedPointer< QCPDataContainer< QCPGraphData > >	mDataContainer

Protected Attributes inherited from QCPAbstractPlottable
QString	mName

bool	mAntialiasedFill

bool	mAntialiasedScatters

QPen	mPen

QBrush	mBrush

QPointer< QCPAxis >	mKeyAxis

QPointer< QCPAxis >	mValueAxis

QCP::SelectionType	mSelectable

QCPDataSelection	mSelection

QCPSelectionDecorator *	mSelectionDecorator

bool	mAntialiasedErrorBars

QPen	mSelectedPen

QBrush	mSelectedBrush

bool	mSelectable

bool	mSelected

Protected Attributes inherited from QCPLayerable
bool	mVisible

QCustomPlot *	mParentPlot

QPointer< QCPLayerable >	mParentLayerable

QCPLayer *	mLayer

bool	mAntialiased

Additional Inherited Members
Signals inherited from QCPAbstractPlottable
void	selectionChanged (bool selected)

void	selectionChanged (const QCPDataSelection &selection)

void	selectableChanged (QCP::SelectionType selectable)

void	selectionChanged (bool selected)

void	selectableChanged (bool selectable)

Signals inherited from QCPLayerable
void	layerChanged (QCPLayer *newLayer)

void	layerChanged (QCPLayer *newLayer)

Protected Types inherited from QCPAbstractPlottable
enum	SignDomain { sdNegative , sdBoth , sdPositive }

Detailed Description

A plottable representing a graph in a plot.

Usually you create new graphs by calling QCustomPlot::addGraph. The resulting instance can be accessed via QCustomPlot::graph.

To plot data, assign it with the setData or addData functions. Alternatively, you can also access and modify the data via the data method, which returns a pointer to the internal QCPGraphDataContainer.

Graphs are used to display single-valued data. Single-valued means that there should only be one data point per unique key coordinate. In other words, the graph can't have loops. If you do want to plot non-single-valued curves, rather use the QCPCurve plottable.

Gaps in the graph line can be created by adding data points with NaN as value (qQNaN() or std::numeric_limits<double>::quiet_NaN()) in between the two data points that shall be separated.

Changing the appearance

The appearance of the graph is mainly determined by the line style, scatter style, brush and pen of the graph (setLineStyle, setScatterStyle, setBrush, setPen).

Filling under or between graphs

QCPGraph knows two types of fills: Normal graph fills towards the zero-value-line parallel to the key axis of the graph, and fills between two graphs, called channel fills. To enable a fill, just set a brush with setBrush which is neither Qt::NoBrush nor fully transparent.

By default, a normal fill towards the zero-value-line will be drawn. To set up a channel fill between this graph and another one, call setChannelFillGraph with the other graph as parameter.

See also: QCustomPlot::addGraph, QCustomPlot::graph

Usually QCustomPlot creates graphs internally via QCustomPlot::addGraph and the resulting instance is accessed via QCustomPlot::graph.

To plot data, assign it with the setData or addData functions. Alternatively, you can also access and modify the graph's data via the data method, which returns a pointer to the internal QCPDataMap.

Graphs are used to display single-valued data. Single-valued means that there should only be one data point per unique key coordinate. In other words, the graph can't have loops. If you do want to plot non-single-valued curves, rather use the QCPCurve plottable.

Gaps in the graph line can be created by adding data points with NaN as value (qQNaN() or std::numeric_limits<double>::quiet_NaN()) in between the two data points that shall be separated.

Changing the appearance

The appearance of the graph is mainly determined by the line style, scatter style, brush and pen of the graph (setLineStyle, setScatterStyle, setBrush, setPen).

Filling under or between graphs

QCPGraph knows two types of fills: Normal graph fills towards the zero-value-line parallel to the key axis of the graph, and fills between two graphs, called channel fills. To enable a fill, just set a brush with setBrush which is neither Qt::NoBrush nor fully transparent.

By default, a normal fill towards the zero-value-line will be drawn. To set up a channel fill between this graph and another one, call setChannelFillGraph with the other graph as parameter.

See also: QCustomPlot::addGraph, QCustomPlot::graph

Definition at line 5996 of file qcustomplot.h.

Member Enumeration Documentation

◆ ErrorType

enum QCPGraph::ErrorType

Defines what kind of error bars are drawn for each data point

Enumerator
etNone	No error bars are shown.
etKey	Error bars for the key dimension of the data point are shown.
etValue	Error bars for the value dimension of the data point are shown
etBoth	Error bars for both key and value dimensions of the data point are shown

Definition at line 3018 of file qcustomplot.h.

◆ LineStyle [1/2]

enum QCPGraph::LineStyle

Defines how the graph's line is represented visually in the plot. The line is drawn with the current pen of the graph (setPen).

See also: setLineStyle

Enumerator
lsNone	data points are not connected with any lines (e.g. data only represented with symbols according to the scatter style, see setScatterStyle)
lsLine	data points are connected by a straight line
lsStepLeft	line is drawn as steps where the step height is the value of the left data point
lsStepRight	line is drawn as steps where the step height is the value of the right data point
lsStepCenter	line is drawn as steps where the step is in between two data points
lsImpulse	each data point is represented by a line parallel to the value axis, which reaches from the data point to the zero-value-line
lsNone	data points are not connected with any lines (e.g. data only represented with symbols according to the scatter style, see setScatterStyle)
lsLine	data points are connected by a straight line
lsStepLeft	line is drawn as steps where the step height is the value of the left data point
lsStepRight	line is drawn as steps where the step height is the value of the right data point
lsStepCenter	line is drawn as steps where the step is in between two data points
lsImpulse	each data point is represented by a line parallel to the value axis, which reaches from the data point to the zero-value-line

Definition at line 6014 of file qcustomplot.h.

◆ LineStyle [2/2]

enum QCPGraph::LineStyle

Defines how the graph's line is represented visually in the plot. The line is drawn with the current pen of the graph (setPen).

See also: setLineStyle

Enumerator
lsNone	data points are not connected with any lines (e.g. data only represented with symbols according to the scatter style, see setScatterStyle)
lsLine	data points are connected by a straight line
lsStepLeft	line is drawn as steps where the step height is the value of the left data point
lsStepRight	line is drawn as steps where the step height is the value of the right data point
lsStepCenter	line is drawn as steps where the step is in between two data points
lsImpulse	each data point is represented by a line parallel to the value axis, which reaches from the data point to the zero-value-line
lsNone	data points are not connected with any lines (e.g. data only represented with symbols according to the scatter style, see setScatterStyle)
lsLine	data points are connected by a straight line
lsStepLeft	line is drawn as steps where the step height is the value of the left data point
lsStepRight	line is drawn as steps where the step height is the value of the right data point
lsStepCenter	line is drawn as steps where the step is in between two data points
lsImpulse	each data point is represented by a line parallel to the value axis, which reaches from the data point to the zero-value-line

Definition at line 2994 of file qcustomplot.h.

Constructor & Destructor Documentation

◆ QCPGraph() [1/2]

QCPGraph::QCPGraph	(	QCPAxis *	keyAxis,
		QCPAxis *	valueAxis
	)

explicit

Constructs a graph which uses keyAxis as its key axis ("x") and valueAxis as its value axis ("y"). keyAxis and valueAxis must reside in the same QCustomPlot instance and not have the same orientation. If either of these restrictions is violated, a corresponding message is printed to the debug output (qDebug), the construction is not aborted, though.

The created QCPGraph is automatically registered with the QCustomPlot instance inferred from keyAxis. This QCustomPlot instance takes ownership of the QCPGraph, so do not delete it manually but use QCustomPlot::removePlottable() instead.

To directly create a graph inside a plot, you can also use the simpler QCustomPlot::addGraph function.

Constructs a graph which uses keyAxis as its key axis ("x") and valueAxis as its value axis ("y"). keyAxis and valueAxis must reside in the same QCustomPlot instance and not have the same orientation. If either of these restrictions is violated, a corresponding message is printed to the debug output (qDebug), the construction is not aborted, though.

The constructed QCPGraph can be added to the plot with QCustomPlot::addPlottable, QCustomPlot then takes ownership of the graph.

To directly create a graph inside a plot, you can also use the simpler QCustomPlot::addGraph function.

Definition at line 20812 of file qcustomplot.cpp.

References ecvColor::blue(), lsLine, QCPLayerable::mParentPlot, QCustomPlot::registerGraph(), setAdaptiveSampling(), QCPAbstractPlottable::setBrush(), setChannelFillGraph(), setLineStyle(), QCPAbstractPlottable::setPen(), and setScatterSkip().

◆ ~QCPGraph() [1/2]

QCPGraph::~QCPGraph ( )

virtual

Definition at line 20826 of file qcustomplot.cpp.

◆ QCPGraph() [2/2]

QCPGraph::QCPGraph	(	QCPAxis *	keyAxis,
		QCPAxis *	valueAxis
	)

explicit

◆ ~QCPGraph() [2/2]

virtual QCPGraph::~QCPGraph ( )

virtual

Member Function Documentation

◆ adaptiveSampling() [1/2]

bool QCPGraph::adaptiveSampling ( ) const

inline

Definition at line 6047 of file qcustomplot.h.

◆ adaptiveSampling() [2/2]

bool QCPGraph::adaptiveSampling ( ) const

inline

Definition at line 3043 of file qcustomplot.h.

◆ addData() [1/6]

void QCPGraph::addData ( const QCPData & data )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Adds the provided single data point in data to the current data.

Alternatively, you can also access and modify the graph's data via the data method, which returns a pointer to the internal QCPDataMap.

See also: removeData

Definition at line 15266 of file qcustomplot.cpp.

References data(), mData, and qtCompatMapInsertMulti().

◆ addData() [2/6]

void QCPGraph::addData ( const QCPDataMap & dataMap )

Adds the provided data points in dataMap to the current data.

Alternatively, you can also access and modify the graph's data via the data method, which returns a pointer to the internal QCPDataMap.

See also: removeData

Definition at line 15254 of file qcustomplot.cpp.

References mData, and qtCompatMapUnite().

◆ addData() [3/6]

void QCPGraph::addData	(	const QVector< double > &	keys,
		const QVector< double > &	values
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Adds the provided data points as key and value pairs to the current data.

Alternatively, you can also access and modify the graph's data via the data method, which returns a pointer to the internal QCPDataMap.

See also: removeData

Definition at line 15295 of file qcustomplot.cpp.

References QCPData::key, mData, qtCompatMapInsertMulti(), and QCPData::value.

◆ addData() [4/6]

void QCPGraph::addData	(	const QVector< double > &	keys,
		const QVector< double > &	values,
		bool	alreadySorted = `false`
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Adds the provided points in keys and values to the current data. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

If you can guarantee that the passed data points are sorted by keys in ascending order, you can set alreadySorted to true, to improve performance by saving a sorting run.

Alternatively, you can also access and modify the data directly via the data method, which returns a pointer to the internal data container.

Definition at line 20982 of file qcustomplot.cpp.

References QCPAbstractPlottable1D< QCPGraphData >::mDataContainer.

Referenced by setData().

◆ addData() [5/6]

void QCPGraph::addData	(	double	key,
		double	value
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Adds the provided data point as key and value to the current data.

Alternatively, you can also access and modify the data directly via the data method, which returns a pointer to the internal data container.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Adds the provided single data point as key and value pair to the current data.

Alternatively, you can also access and modify the graph's data via the data method, which returns a pointer to the internal QCPDataMap.

See also: removeData

Definition at line 21012 of file qcustomplot.cpp.

References QCPAbstractPlottable1D< QCPGraphData >::mDataContainer.

◆ addData() [6/6]

void QCPGraph::addData	(	double	key,
		double	value
	)

◆ addFillBasePoints()

void QCPGraph::addFillBasePoints ( QVector< QPointF > * lineData ) const

protected

Definition at line 16631 of file qcustomplot.cpp.

References lowerFillBasePoint(), QCPAbstractPlottable::mKeyAxis, and upperFillBasePoint().

◆ channelFillGraph() [1/2]

QCPGraph* QCPGraph::channelFillGraph ( ) const

inline

Definition at line 6046 of file qcustomplot.h.

References data().

◆ channelFillGraph() [2/2]

QCPGraph* QCPGraph::channelFillGraph ( ) const

inline

Definition at line 3042 of file qcustomplot.h.

References data().

◆ clearData()

void QCPGraph::clearData ( )

virtual

Removes all data points.

See also: removeData, removeDataAfter, removeDataBefore

Implements QCPAbstractPlottable.

Definition at line 15354 of file qcustomplot.cpp.

References mData.

◆ countDataInBounds()

int QCPGraph::countDataInBounds	(	const QCPDataMap::const_iterator &	lower,
		const QCPDataMap::const_iterator &	upper,
		int	maxCount
	)		const

protected

Definition at line 16602 of file qcustomplot.cpp.

References count, and mData.

Referenced by getPreparedData().

◆ data() [1/2]

QCPDataMap * QCPGraph::data ( ) const

inline

Returns a shared pointer to the internal data storage of type QCPGraphDataContainer. You may use it to directly manipulate the data, which may be more convenient and faster than using the regular setData or addData methods.

Returns a pointer to the internal data storage of type QCPDataMap. You may use it to directly manipulate the data, which may be more convenient and faster than using the regular setData or addData methods, in certain situations.

Definition at line 6040 of file qcustomplot.h.

void QCPGraph::draw ( QCPPainter * painter )

protectedvirtual

Implements QCPAbstractPlottable.

Definition at line 21060 of file qcustomplot.cpp.

◆ draw() [2/2]

virtual void QCPGraph::draw ( QCPPainter * painter )

protectedvirtual

Implements QCPAbstractPlottable.

◆ drawError()

void QCPGraph::drawError	(	QCPPainter *	painter,
		double	x,
		double	y,
		const QCPData &	data
	)		const

protected

Definition at line 16447 of file qcustomplot.cpp.

References a, QCPAxis::coordToPixel(), data(), QCPPainter::drawLine(), etBoth, etKey, etValue, QCPAbstractPlottable::keyAxis(), mErrorBarSize, mErrorBarSkipSymbol, mErrorType, QCPAbstractPlottable::mKeyAxis, mScatterStyle, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), QCPAxis::rangeReversed(), QCPScatterStyle::size(), QCPAbstractPlottable::valueAxis(), x, and y.

Referenced by drawScatterPlot().

◆ drawFill() [1/2]

virtual void QCPGraph::drawFill	(	QCPPainter *	painter,
		QVector< QPointF > *	lineData
	)		const

protectedvirtual

◆ drawFill() [2/2]

void QCPGraph::drawFill	(	QCPPainter *	painter,
		QVector< QPointF > *	lines
	)		const

protectedvirtual

Definition at line 21576 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyFillAntialiasingHint(), getChannelFillPolygon(), getFillPolygon(), getNonNanSegments(), getOverlappingSegments(), QCPAbstractPlottable::keyAxis(), lsImpulse, mChannelFillGraph, and mLineStyle.

Referenced by draw().

◆ drawImpulsePlot() [1/2]

void QCPGraph::drawImpulsePlot	(	QCPPainter *	painter,
		const QVector< QPointF > &	lines
	)		const

protectedvirtual

Definition at line 21650 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyDefaultAntialiasingHint(), and QCPPainter::setPen().

Referenced by draw().

◆ drawImpulsePlot() [2/2]

void QCPGraph::drawImpulsePlot	(	QCPPainter *	painter,
		QVector< QPointF > *	lineData
	)		const

protectedvirtual

Definition at line 16097 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyDefaultAntialiasingHint(), color, QCPAbstractPlottable::mainPen(), QCPAbstractPlottable::pen(), and QCPPainter::setPen().

◆ drawLegendIcon() [1/2]

void QCPGraph::drawLegendIcon	(	QCPPainter *	painter,
		const QRectF &	rect
	)		const

protectedvirtual

◆ drawLegendIcon() [2/2]

virtual void QCPGraph::drawLegendIcon	(	QCPPainter *	painter,
		const QRectF &	rect
	)		const

protectedvirtual

Implements QCPAbstractPlottable.

◆ drawLinePlot() [1/2]

void QCPGraph::drawLinePlot	(	QCPPainter *	painter,
		const QVector< QPointF > &	lines
	)		const

protectedvirtual

Definition at line 21633 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyDefaultAntialiasingHint(), and QCPAbstractPlottable1D< QCPGraphData >::drawPolyline().

Referenced by draw().

◆ drawLinePlot() [2/2]

void QCPGraph::drawLinePlot	(	QCPPainter *	painter,
		QVector< QPointF > *	lineData
	)		const

protectedvirtual

Definition at line 16015 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyDefaultAntialiasingHint(), color, QCPPainter::drawLine(), QCPAbstractPlottable::mainPen(), QCPPainter::modes(), QCPLayerable::mParentPlot, QCP::phFastPolylines, QCustomPlot::plottingHints(), QCPPainter::pmNoCaching, QCPPainter::pmVectorized, and QCPPainter::setPen().

◆ drawScatterPlot() [1/2]

void QCPGraph::drawScatterPlot	(	QCPPainter *	painter,
		const QVector< QPointF > &	scatters,
		const QCPScatterStyle &	style
	)		const

protectedvirtual

Definition at line 21618 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyScattersAntialiasingHint(), QCPScatterStyle::applyTo(), QCPScatterStyle::drawShape(), and QCPAbstractPlottable::mPen.

Referenced by draw().

◆ drawScatterPlot() [2/2]

void QCPGraph::drawScatterPlot	(	QCPPainter *	painter,
		QVector< QCPData > *	scatterData
	)		const

protectedvirtual

Definition at line 15958 of file qcustomplot.cpp.

References QCPAbstractPlottable::applyErrorBarsAntialiasingHint(), QCPAbstractPlottable::applyScattersAntialiasingHint(), QCPScatterStyle::applyTo(), QCPAxis::coordToPixel(), drawError(), QCPScatterStyle::drawShape(), etNone, QCPAbstractPlottable::keyAxis(), mErrorPen, mErrorType, QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mPen, mScatterStyle, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), QCPPainter::setPen(), and QCPAbstractPlottable::valueAxis().

◆ errorBarSize()

double QCPGraph::errorBarSize ( ) const

inline

Definition at line 3040 of file qcustomplot.h.

◆ errorBarSkipSymbol()

bool QCPGraph::errorBarSkipSymbol ( ) const

inline

Definition at line 3041 of file qcustomplot.h.

◆ errorPen()

QPen QCPGraph::errorPen ( ) const

inline

Definition at line 3039 of file qcustomplot.h.

◆ errorType()

ErrorType QCPGraph::errorType ( ) const

inline

Definition at line 3038 of file qcustomplot.h.

Referenced by setErrorType().

◆ findIndexAboveX() [1/2]

int QCPGraph::findIndexAboveX	(	const QVector< QPointF > *	data,
		double	x
	)		const

protected

Definition at line 22553 of file qcustomplot.cpp.

References data(), size, and x.

Referenced by getChannelFillPolygon().

◆ findIndexAboveX() [2/2]

int QCPGraph::findIndexAboveX	(	const QVector< QPointF > *	data,
		double	x
	)		const

protected

◆ findIndexAboveY() [1/2]

int QCPGraph::findIndexAboveY	(	const QVector< QPointF > *	data,
		double	y
	)		const

protected

Definition at line 22593 of file qcustomplot.cpp.

References data(), size, and y.

Referenced by getChannelFillPolygon().

◆ findIndexAboveY() [2/2]

int QCPGraph::findIndexAboveY	(	const QVector< QPointF > *	data,
		double	y
	)		const

protected

◆ findIndexBelowX() [1/2]

int QCPGraph::findIndexBelowX	(	const QVector< QPointF > *	data,
		double	x
	)		const

protected

Definition at line 22573 of file qcustomplot.cpp.

References data(), and x.

Referenced by getChannelFillPolygon().

◆ findIndexBelowX() [2/2]

int QCPGraph::findIndexBelowX	(	const QVector< QPointF > *	data,
		double	x
	)		const

protected

◆ findIndexBelowY() [1/2]

int QCPGraph::findIndexBelowY	(	const QVector< QPointF > *	data,
		double	y
	)		const

protected

Definition at line 22685 of file qcustomplot.cpp.

References data(), and y.

Referenced by getChannelFillPolygon().

◆ findIndexBelowY() [2/2]

int QCPGraph::findIndexBelowY	(	const QVector< QPointF > *	data,
		double	y
	)		const

protected

◆ getChannelFillPolygon() [1/2]

const QPolygonF QCPGraph::getChannelFillPolygon ( const QVector< QPointF > * lineData ) const

protected

Definition at line 16800 of file qcustomplot.cpp.

References findIndexAboveX(), findIndexAboveY(), findIndexBelowX(), findIndexBelowY(), QCPAbstractPlottable::keyAxis(), mChannelFillGraph, QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), size, and QCPAbstractPlottable::valueAxis().

◆ getChannelFillPolygon() [2/2]

const QPolygonF QCPGraph::getChannelFillPolygon	(	const QVector< QPointF > *	lineData,
		QCPDataRange	thisSegment,
		const QVector< QPointF > *	otherData,
		QCPDataRange	otherSegment
	)		const

protected

Definition at line 22397 of file qcustomplot.cpp.

References QCPDataRange::begin(), copy, QCPDataRange::end(), findIndexAboveX(), findIndexAboveY(), findIndexBelowX(), findIndexBelowY(), QCPAbstractPlottable::keyAxis(), mChannelFillGraph, QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), QCPDataRange::size(), and QCPAbstractPlottable::valueAxis().

Referenced by drawFill().

◆ getFillBasePoint()

QPointF QCPGraph::getFillBasePoint ( QPointF matchingDataPoint ) const

protected

◆ getFillPolygon()

const QPolygonF QCPGraph::getFillPolygon	(	const QVector< QPointF > *	lineData,
		QCPDataRange	segment
	)		const

protected

Definition at line 22364 of file qcustomplot.cpp.

References QCPDataRange::begin(), copy, QCPDataRange::end(), getFillBasePoint(), result, and QCPDataRange::size().

Referenced by drawFill().

◆ getImpulsePlotData()

void QCPGraph::getImpulsePlotData	(	QVector< QPointF > *	linePixelData,
		QVector< QCPData > *	scatterData
	)		const

protected

Definition at line 15864 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), getPreparedData(), QCPAbstractPlottable::keyAxis(), QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), and QCPAbstractPlottable::valueAxis().

Referenced by getPlotData().

◆ getKeyRange() [1/3]

QCPRange QCPGraph::getKeyRange	(	bool &	foundRange,
		QCP::SignDomain	inSignDomain = `QCP::sdBoth`
	)		const

virtual

Returns the coordinate range that all data in this plottable span in the key axis dimension. For logarithmic plots, one can set inSignDomain to either QCP::sdNegative or QCP::sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to QCP::sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to QCP::sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).

Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero (e.g. when there is only one data point). In this case foundRange would return true, but the returned range is not a valid range in terms of QCPRange::validRange.

See also: rescaleAxes, getValueRange

Implements QCPAbstractPlottable.

Definition at line 21047 of file qcustomplot.cpp.

References QCPAbstractPlottable1D< QCPGraphData >::mDataContainer.

Referenced by getKeyRange(), and rescaleKeyAxis().

◆ getKeyRange() [2/3]

QCPRange QCPGraph::getKeyRange	(	bool &	foundRange,
		SignDomain	inSignDomain,
		bool	includeErrors
	)		const

protectedvirtual

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Allows to specify whether the error bars should be included in the range calculation.

See also: getKeyRange(bool &foundRange, SignDomain inSignDomain)

Definition at line 17148 of file qcustomplot.cpp.

References QCPRange::lower, mData, QCPAbstractPlottable::sdBoth, QCPAbstractPlottable::sdNegative, QCPAbstractPlottable::sdPositive, and QCPRange::upper.

◆ getKeyRange() [3/3]

QCPRange QCPGraph::getKeyRange	(	bool &	foundRange,
		SignDomain	inSignDomain = `sdBoth`
	)		const

protectedvirtual

Implements QCPAbstractPlottable.

Definition at line 17124 of file qcustomplot.cpp.

References getKeyRange().

◆ getLinePlotData()

void QCPGraph::getLinePlotData	(	QVector< QPointF > *	linePixelData,
		QVector< QCPData > *	scatterData
	)		const

protected

Definition at line 15620 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), getPreparedData(), QCPAbstractPlottable::keyAxis(), QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), and QCPAbstractPlottable::valueAxis().

Referenced by getPlotData().

◆ getLines()

void QCPGraph::getLines	(	QVector< QPointF > *	lines,
		const QCPDataRange &	dataRange
	)		const

protected

Definition at line 21205 of file qcustomplot.cpp.

References dataToImpulseLines(), dataToLines(), dataToStepCenterLines(), dataToStepLeftLines(), dataToStepRightLines(), getOptimizedLineData(), getVisibleDataBounds(), lsImpulse, lsLine, lsNone, lsStepCenter, lsStepLeft, lsStepRight, QCPAbstractPlottable::mKeyAxis, and mLineStyle.

Referenced by draw(), and pointDistance().

◆ getNonNanSegments()

QVector< QCPDataRange > QCPGraph::getNonNanSegments	(	const QVector< QPointF > *	lineData,
		Qt::Orientation	keyOrientation
	)		const

protected

Definition at line 22124 of file qcustomplot.cpp.

References result, QCPDataRange::setBegin(), and QCPDataRange::setEnd().

Referenced by drawFill().

◆ getOptimizedLineData()

void QCPGraph::getOptimizedLineData	(	QVector< QCPGraphData > *	lineData,
		const QCPGraphDataContainer::const_iterator &	begin,
		const QCPGraphDataContainer::const_iterator &	end
	)		const

protectedvirtual

Definition at line 21679 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), copy, QCPAbstractPlottable1D< QCPGraphData >::dataCount(), QCPAbstractPlottable::keyAxis(), mAdaptiveSampling, QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::pixelOrientation(), QCPAxis::pixelToCoord(), QCPAxis::scaleType(), QCPAxis::stLogarithmic, and QCPAbstractPlottable::valueAxis().

Referenced by getLines().

◆ getOptimizedScatterData()

void QCPGraph::getOptimizedScatterData	(	QVector< QCPGraphData > *	scatterData,
		QCPGraphDataContainer::const_iterator	begin,
		QCPGraphDataContainer::const_iterator	end
	)		const

protectedvirtual

Definition at line 21841 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), QCPAbstractPlottable1D< QCPGraphData >::dataCount(), QCPAbstractPlottable::keyAxis(), QCPRange::lower, mAdaptiveSampling, QCPAbstractPlottable1D< QCPGraphData >::mDataContainer, QCPAbstractPlottable::mKeyAxis, mScatterSkip, QCPAbstractPlottable::mValueAxis, QCPAxis::pixelOrientation(), QCPAxis::pixelToCoord(), QCPAxis::range(), QCPAxis::scaleType(), QCPAxis::stLogarithmic, QCPRange::upper, and QCPAbstractPlottable::valueAxis().

Referenced by getScatters().

◆ getOverlappingSegments()

QVector< QPair< QCPDataRange, QCPDataRange > > QCPGraph::getOverlappingSegments	(	QVector< QCPDataRange >	thisSegments,
		const QVector< QPointF > *	thisData,
		QVector< QCPDataRange >	otherSegments,
		const QVector< QPointF > *	otherData
	)		const

protected

Definition at line 22186 of file qcustomplot.cpp.

References QCPAbstractPlottable::mKeyAxis, result, and segmentsIntersect().

Referenced by drawFill().

◆ getPlotData()

void QCPGraph::getPlotData	(	QVector< QPointF > *	lineData,
		QVector< QCPData > *	scatterData
	)		const

protected

Definition at line 15566 of file qcustomplot.cpp.

References getImpulsePlotData(), getLinePlotData(), getScatterPlotData(), getStepCenterPlotData(), getStepLeftPlotData(), getStepRightPlotData(), lsImpulse, lsLine, lsNone, lsStepCenter, lsStepLeft, lsStepRight, and mLineStyle.

Referenced by pointDistance().

◆ getPreparedData()

void QCPGraph::getPreparedData	(	QVector< QCPData > *	lineData,
		QVector< QCPData > *	scatterData
	)		const

protected

◆ getScatterPlotData()

void QCPGraph::getScatterPlotData ( QVector< QCPData > * scatterData ) const

protected

Definition at line 15603 of file qcustomplot.cpp.

References getPreparedData().

Referenced by getPlotData(), and pointDistance().

◆ getScatters()

void QCPGraph::getScatters	(	QVector< QPointF > *	scatters,
		const QCPDataRange &	dataRange
	)		const

protected

Definition at line 21261 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), data(), getOptimizedScatterData(), getVisibleDataBounds(), QCPAbstractPlottable::keyAxis(), QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), and QCPAbstractPlottable::valueAxis().

Referenced by draw().

◆ getStepCenterPlotData()

void QCPGraph::getStepCenterPlotData	(	QVector< QPointF > *	linePixelData,
		QVector< QCPData > *	scatterData
	)		const

protected

Definition at line 15793 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), getPreparedData(), QCPAbstractPlottable::keyAxis(), QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), and QCPAbstractPlottable::valueAxis().

Referenced by getPlotData().

◆ getStepLeftPlotData()

void QCPGraph::getStepLeftPlotData	(	QVector< QPointF > *	linePixelData,
		QVector< QCPData > *	scatterData
	)		const

protected

Definition at line 15671 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), getPreparedData(), QCPAbstractPlottable::keyAxis(), QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), and QCPAbstractPlottable::valueAxis().

Referenced by getPlotData().

◆ getStepRightPlotData()

void QCPGraph::getStepRightPlotData	(	QVector< QPointF > *	linePixelData,
		QVector< QCPData > *	scatterData
	)		const

protected

Definition at line 15732 of file qcustomplot.cpp.

References QCPAxis::coordToPixel(), getPreparedData(), QCPAbstractPlottable::keyAxis(), QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::orientation(), and QCPAbstractPlottable::valueAxis().

Referenced by getPlotData().

◆ getValueRange() [1/3]

QCPRange QCPGraph::getValueRange	(	bool &	foundRange,
		QCP::SignDomain	inSignDomain = `QCP::sdBoth`,
		const QCPRange &	inKeyRange = `QCPRange()`
	)		const

virtual

Returns the coordinate range that the data points in the specified key range (inKeyRange) span in the value axis dimension. For logarithmic plots, one can set inSignDomain to either QCP::sdNegative or QCP::sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to QCP::sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to QCP::sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).

If inKeyRange has both lower and upper bound set to zero (is equal to QCPRange()), all data points are considered, without any restriction on the keys.

Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero (e.g. when there is only one data point). In this case foundRange would return true, but the returned range is not a valid range in terms of QCPRange::validRange.

See also: rescaleAxes, getKeyRange

Implements QCPAbstractPlottable.

Definition at line 21053 of file qcustomplot.cpp.

References QCPAbstractPlottable1D< QCPGraphData >::mDataContainer.

Referenced by getValueRange(), and rescaleValueAxis().

◆ getValueRange() [2/3]

QCPRange QCPGraph::getValueRange	(	bool &	foundRange,
		SignDomain	inSignDomain,
		bool	includeErrors
	)		const

protectedvirtual

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Allows to specify whether the error bars should be included in the range calculation.

See also: getValueRange(bool &foundRange, SignDomain inSignDomain)

Definition at line 17265 of file qcustomplot.cpp.

References QCPRange::lower, mData, QCPAbstractPlottable::sdBoth, QCPAbstractPlottable::sdNegative, QCPAbstractPlottable::sdPositive, and QCPRange::upper.

◆ getValueRange() [3/3]

QCPRange QCPGraph::getValueRange	(	bool &	foundRange,
		SignDomain	inSignDomain = `sdBoth`
	)		const

protectedvirtual

called by rescaleAxes functions to get the full data value bounds. For logarithmic plots, one can set inSignDomain to either sdNegative or sdPositive in order to restrict the returned range to that sign domain. E.g. when only negative range is wanted, set inSignDomain to sdNegative and all positive points will be ignored for range calculation. For no restriction, just set inSignDomain to sdBoth (default). foundRange is an output parameter that indicates whether a range could be found or not. If this is false, you shouldn't use the returned range (e.g. no points in data).

Note that foundRange is not the same as QCPRange::validRange, since the range returned by this function may have size zero, which wouldn't count as a valid range.

See also: rescaleAxes, getKeyRange

Implements QCPAbstractPlottable.

Definition at line 17133 of file qcustomplot.cpp.

References getValueRange().

◆ getVisibleDataBounds() [1/2]

void QCPGraph::getVisibleDataBounds	(	QCPDataMap::const_iterator &	lower,
		QCPDataMap::const_iterator &	upper
	)		const

protected

Definition at line 16560 of file qcustomplot.cpp.

References mData, and QCPAbstractPlottable::mKeyAxis.

◆ getVisibleDataBounds() [2/2]

void QCPGraph::getVisibleDataBounds	(	QCPGraphDataContainer::const_iterator &	begin,
		QCPGraphDataContainer::const_iterator &	end,
		const QCPDataRange &	rangeRestriction
	)		const

protected

This method outputs the currently visible data range via begin and end. The returned range will also never exceed rangeRestriction.

This method takes into account that the drawing of data lines at the axis rect border always requires the points just outside the visible axis range. So begin and end may actually indicate a range that contains one additional data point to the left and right of the visible axis range.

Definition at line 22087 of file qcustomplot.cpp.

References QCPDataRange::isEmpty(), QCPAbstractPlottable::keyAxis(), QCPRange::lower, QCPAbstractPlottable1D< QCPGraphData >::mDataContainer, QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mValueAxis, QCPAxis::range(), QCPRange::upper, and QCPAbstractPlottable::valueAxis().

Referenced by getLines(), getPreparedData(), and getScatters().

◆ lineStyle() [1/2]

LineStyle QCPGraph::lineStyle ( ) const

inline

Definition at line 6043 of file qcustomplot.h.

◆ lineStyle() [2/2]

LineStyle QCPGraph::lineStyle ( ) const

inline

Definition at line 3036 of file qcustomplot.h.

◆ lowerFillBasePoint()

QPointF QCPGraph::lowerFillBasePoint ( double lowerKey ) const

protected

◆ pointDistance() [1/2]

double QCPGraph::pointDistance ( const QPointF & pixelPoint ) const

protected

Definition at line 17042 of file qcustomplot.cpp.

References QCPAbstractPlottable::coordsToPixels(), QCPAbstractPlottable::distSqrToLine(), getPlotData(), getScatterPlotData(), QCPScatterStyle::isNone(), lsImpulse, lsNone, mData, mLineStyle, and mScatterStyle.

◆ pointDistance() [2/2]

double QCPGraph::pointDistance	(	const QPointF &	pixelPoint,
		QCPGraphDataContainer::const_iterator &	closestData
	)		const

protected

Definition at line 22619 of file qcustomplot.cpp.

References QCPAbstractPlottable::coordsToPixels(), QCPAbstractPlottable1D< QCPGraphData >::dataCount(), QCPVector2D::distanceSquaredToLine(), getLines(), QCPScatterStyle::isNone(), QCPVector2D::lengthSquared(), lsImpulse, lsNone, QCPAbstractPlottable1D< QCPGraphData >::mDataContainer, mLineStyle, QCPLayerable::mParentPlot, mScatterStyle, QCPAbstractPlottable::pixelsToCoords(), and QCustomPlot::selectionTolerance().

Referenced by selectTest().

◆ removeData() [1/2]

void QCPGraph::removeData	(	double	fromKey,
		double	toKey
	)

Removes all data points with keys between fromKey and toKey. if fromKey is greater or equal to toKey, the function does nothing. To remove a single data point with known key, use removeData(double key).

See also: addData, clearData

Definition at line 15332 of file qcustomplot.cpp.

References mData.

◆ removeData() [2/2]

void QCPGraph::removeData ( double key )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Removes a single data point at key. If the position is not known with absolute precision, consider using removeData(double fromKey, double toKey) with a small fuzziness interval around the suspected position, depeding on the precision with which the key is known.

See also: addData, clearData

Definition at line 15348 of file qcustomplot.cpp.

References mData.

◆ removeDataAfter()

void QCPGraph::removeDataAfter ( double key )

Removes all data points with keys greater than key.

See also: addData, clearData

Definition at line 15319 of file qcustomplot.cpp.

References mData.

◆ removeDataBefore()

void QCPGraph::removeDataBefore ( double key )

Removes all data points with keys smaller than key.

See also: addData, clearData

Definition at line 15310 of file qcustomplot.cpp.

References mData.

◆ removeFillBasePoints()

void QCPGraph::removeFillBasePoints ( QVector< QPointF > * lineData ) const

protected

Definition at line 16654 of file qcustomplot.cpp.

◆ rescaleAxes() [1/3]

void QCPGraph::rescaleAxes	(	bool	onlyEnlarge,
		bool	includeErrorBars
	)		const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Allows to define whether error bars are taken into consideration when determining the new axis range.

See also: rescaleKeyAxis, rescaleValueAxis, QCPAbstractPlottable::rescaleAxes, QCustomPlot::rescaleAxes

Definition at line 15381 of file qcustomplot.cpp.

References rescaleKeyAxis(), and rescaleValueAxis().

Referenced by cvProbeFilter::apply(), WolmanCustomPlot::rescale(), and WolmanCustomPlot::WolmanCustomPlot().

◆ rescaleAxes() [2/3]

void QCPAbstractPlottable::rescaleAxes

Rescales the key and value axes associated with this plottable to contain all displayed data, so the whole plottable is visible. If the scaling of an axis is logarithmic, rescaleAxes will make sure not to rescale to an illegal range i.e. a range containing different signs and/or zero. Instead it will stay in the current sign domain and ignore all parts of the plottable that lie outside of that domain.

onlyEnlarge makes sure the ranges are only expanded, never reduced. So it's possible to show multiple plottables in their entirety by multiple calls to rescaleAxes where the first call has onlyEnlarge set to false (the default), and all subsequent set to true.

See also: rescaleKeyAxis, rescaleValueAxis, QCustomPlot::rescaleAxes, QCPAxis::rescale

Definition at line 3889 of file qcustomplot.cpp.

◆ rescaleAxes() [3/3]

void QCPAbstractPlottable::rescaleAxes

◆ rescaleKeyAxis() [1/3]

void QCPGraph::rescaleKeyAxis	(	bool	onlyEnlarge,
		bool	includeErrorBars
	)		const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Allows to define whether error bars (of kind QCPGraph::etKey) are taken into consideration when determining the new axis range.

See also: rescaleAxes, QCPAbstractPlottable::rescaleKeyAxis

Definition at line 15393 of file qcustomplot.cpp.

References getKeyRange(), QCPAbstractPlottable::keyAxis(), QCPRange::lower, mData, QCPAbstractPlottable::mKeyAxis, QCPAxis::range(), QCPAxis::scaleType(), QCPAbstractPlottable::sdBoth, QCPAbstractPlottable::sdNegative, QCPAbstractPlottable::sdPositive, QCPAxis::setRange(), QCPAxis::stLogarithmic, and QCPRange::upper.

◆ rescaleKeyAxis() [2/3]

void QCPAbstractPlottable::rescaleKeyAxis

Rescales the key axis of the plottable so the whole plottable is visible.

See rescaleAxes for detailed behaviour.

Definition at line 3890 of file qcustomplot.cpp.

Referenced by rescaleAxes().

◆ rescaleKeyAxis() [3/3]

void QCPAbstractPlottable::rescaleKeyAxis

◆ rescaleValueAxis() [1/3]

void QCPGraph::rescaleValueAxis	(	bool	onlyEnlarge,
		bool	includeErrorBars
	)		const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Allows to define whether error bars (of kind QCPGraph::etValue) are taken into consideration when determining the new axis range.

See also: rescaleAxes, QCPAbstractPlottable::rescaleValueAxis

Definition at line 15429 of file qcustomplot.cpp.

References getValueRange(), QCPRange::lower, mData, QCPAbstractPlottable::mValueAxis, QCPAxis::range(), QCPAxis::scaleType(), QCPAbstractPlottable::sdBoth, QCPAbstractPlottable::sdNegative, QCPAbstractPlottable::sdPositive, QCPAxis::setRange(), QCPAxis::stLogarithmic, QCPRange::upper, and QCPAbstractPlottable::valueAxis().

◆ rescaleValueAxis() [2/3]

void QCPAbstractPlottable::rescaleValueAxis

Rescales the value axis of the plottable so the whole plottable is visible.

Returns true if the axis was actually scaled. This might not be the case if this plottable has an invalid range, e.g. because it has no data points.

See rescaleAxes for detailed behaviour.

Definition at line 1738 of file qcustomplot.cpp.

◆ rescaleValueAxis() [3/3]

void QCPAbstractPlottable::rescaleValueAxis

Rescales the value axis of the plottable so the whole plottable is visible. If inKeyRange is set to true, only the data points which are in the currently visible key axis range are considered.

Returns true if the axis was actually scaled. This might not be the case if this plottable has an invalid range, e.g. because it has no data points.

See rescaleAxes for detailed behaviour.

Definition at line 3891 of file qcustomplot.cpp.

Referenced by rescaleAxes().

◆ scatterSkip()

int QCPGraph::scatterSkip ( ) const

inline

Definition at line 6045 of file qcustomplot.h.

◆ scatterStyle() [1/2]

QCPScatterStyle QCPGraph::scatterStyle ( ) const

inline

Definition at line 6044 of file qcustomplot.h.

◆ scatterStyle() [2/2]

QCPScatterStyle QCPGraph::scatterStyle ( ) const

inline

Definition at line 3037 of file qcustomplot.h.

◆ segmentsIntersect()

bool QCPGraph::segmentsIntersect	(	double	aLower,
		double	aUpper,
		double	bLower,
		double	bUpper,
		int &	bPrecedence
	)		const

protected

Definition at line 22264 of file qcustomplot.cpp.

Referenced by getOverlappingSegments().

◆ selectTest() [1/2]

double QCPGraph::selectTest	(	const QPointF &	pos,
		bool	onlySelectable,
		QVariant *	details = `0`
	)		const

virtual

Implements a selectTest specific to this plottable's point geometry.

If details is not 0, it will be set to a QCPDataSelection, describing the closest data point to pos.

\seebaseclassmethod QCPAbstractPlottable::selectTest

Implements QCPAbstractPlottable.

Definition at line 21024 of file qcustomplot.cpp.

References QCPAbstractPlottable1D< QCPGraphData >::mDataContainer, QCPAbstractPlottable::mKeyAxis, QCPAbstractPlottable::mSelectable, QCPAbstractPlottable::mValueAxis, pointDistance(), result, and QCP::stNone.

◆ selectTest() [2/2]

virtual double QCPGraph::selectTest	(	const QPointF &	pos,
		bool	onlySelectable,
		QVariant *	details = `0`
	)		const

virtual

This function is used to decide whether a click hits a layerable object or not.

pos is a point in pixel coordinates on the QCustomPlot surface. This function returns the shortest pixel distance of this point to the object. If the object is either invisible or the distance couldn't be determined, -1.0 is returned. Further, if onlySelectable is true and the object is not selectable, -1.0 is returned, too.

If the object is represented not by single lines but by an area like a QCPItemText or the bars of a QCPBars plottable, a click inside the area should also be considered a hit. In these cases this function thus returns a constant value greater zero but still below the parent plot's selection tolerance. (typically the selectionTolerance multiplied by 0.99).

Providing a constant value for area objects allows selecting line objects even when they are obscured by such area objects, by clicking close to the lines (i.e. closer than 0.99*selectionTolerance).

The actual setting of the selection state is not done by this function. This is handled by the parent QCustomPlot when the mouseReleaseEvent occurs, and the finally selected object is notified via the selectEvent/ deselectEvent methods.

details is an optional output parameter. Every layerable subclass may place any information in details. This information will be passed to selectEvent when the parent QCustomPlot decides on the basis of this selectTest call, that the object was successfully selected. The subsequent call to selectEvent will carry the details. This is useful for multi-part objects (like QCPAxis). This way, a possibly complex calculation to decide which part was clicked is only done once in selectTest. The result (i.e. the actually clicked part) can then be placed in details. So in the subsequent selectEvent, the decision which part was selected doesn't have to be done a second time for a single selection operation.

In the case of 1D Plottables (QCPAbstractPlottable1D, like QCPGraph or QCPBars) details will be set to a QCPDataSelection, describing the closest data point to pos.

You may pass 0 as details to indicate that you are not interested in those selection details.

See also: selectEvent, deselectEvent, mousePressEvent, wheelEvent, QCustomPlot::setInteractions, QCPAbstractPlottable1D::selectTestRect

This function is used to decide whether a click hits a layerable object or not.

pos is a point in pixel coordinates on the QCustomPlot surface. This function returns the shortest pixel distance of this point to the object. If the object is either invisible or the distance couldn't be determined, -1.0 is returned. Further, if onlySelectable is true and the object is not selectable, -1.0 is returned, too.

If the object is represented not by single lines but by an area like a QCPItemText or the bars of a QCPBars plottable, a click inside the area should also be considered a hit. In these cases this function thus returns a constant value greater zero but still below the parent plot's selection tolerance. (typically the selectionTolerance multiplied by 0.99).

Providing a constant value for area objects allows selecting line objects even when they are obscured by such area objects, by clicking close to the lines (i.e. closer than 0.99*selectionTolerance).

The actual setting of the selection state is not done by this function. This is handled by the parent QCustomPlot when the mouseReleaseEvent occurs, and the finally selected object is notified via the selectEvent/deselectEvent methods.

details is an optional output parameter. Every layerable subclass may place any information in details. This information will be passed to selectEvent when the parent QCustomPlot decides on the basis of this selectTest call, that the object was successfully selected. The subsequent call to selectEvent will carry the details. This is useful for multi-part objects (like QCPAxis). This way, a possibly complex calculation to decide which part was clicked is only done once in selectTest. The result (i.e. the actually clicked part) can then be placed in details. So in the subsequent selectEvent, the decision which part was selected doesn't have to be done a second time for a single selection operation.

You may pass 0 as details to indicate that you are not interested in those selection details.

See also: selectEvent, deselectEvent, QCustomPlot::setInteractions

Implements QCPAbstractPlottable.

◆ setAdaptiveSampling() [1/2]

void QCPGraph::setAdaptiveSampling ( bool enabled )

Sets whether adaptive sampling shall be used when plotting this graph. QCustomPlot's adaptive sampling technique can drastically improve the replot performance for graphs with a larger number of points (e.g. above 10,000), without notably changing the appearance of the graph.

By default, adaptive sampling is enabled. Even if enabled, QCustomPlot decides whether adaptive sampling shall actually be used on a per-graph basis. So leaving adaptive sampling enabled has no disadvantage in almost all cases.

A line plot of 500,000 points without

and with adaptive sampling"

As can be seen, line plots experience no visual degradation from adaptive sampling. Outliers are reproduced reliably, as well as the overall shape of the data set. The replot time reduces dramatically though. This allows QCustomPlot to display large amounts of data in realtime.

A scatter plot of 100,000 points

without and with adaptive sampling"

Care must be taken when using high-density scatter plots in combination with adaptive sampling. The adaptive sampling algorithm treats scatter plots more carefully than line plots which still gives a significant reduction of replot times, but not quite as much as for line plots. This is because scatter plots inherently need more data points to be preserved in order to still resemble the original, non-adaptive-sampling plot. As shown above, the results still aren't quite identical, as banding occurs for the outer data points. This is in fact intentional, such that the boundaries of the data cloud stay visible to the viewer. How strong the banding appears, depends on the point density, i.e. the number of points in the plot.

For some situations with scatter plots it might thus be desirable to manually turn adaptive sampling off. For example, when saving the plot to disk. This can be achieved by setting enabled to false before issuing a command like QCustomPlot::savePng, and setting enabled back to true afterwards.

Definition at line 20965 of file qcustomplot.cpp.

References mAdaptiveSampling.

Referenced by QCPGraph().

◆ setAdaptiveSampling() [2/2]

void QCPGraph::setAdaptiveSampling ( bool enabled )

◆ setChannelFillGraph() [1/2]

void QCPGraph::setChannelFillGraph ( QCPGraph * targetGraph )

Sets the target graph for filling the area between this graph and targetGraph with the current brush (setBrush).

When targetGraph is set to 0, a normal graph fill to the zero-value-line will be shown. To disable any filling, set the brush to Qt::NoBrush.

See also: setBrush

Definition at line 20911 of file qcustomplot.cpp.

References mChannelFillGraph, and QCPLayerable::mParentPlot.

Referenced by QCPGraph().

◆ setChannelFillGraph() [2/2]

void QCPGraph::setChannelFillGraph ( QCPGraph * targetGraph )

◆ setData() [1/4]

void QCPGraph::setData	(	const QVector< double > &	key,
		const QVector< double > &	value
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Replaces the current data with the provided points in key and value pairs. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

Definition at line 14931 of file qcustomplot.cpp.

References QCPData::key, mData, qtCompatMapInsertMulti(), and QCPData::value.

◆ setData() [2/4]

void QCPGraph::setData	(	const QVector< double > &	keys,
		const QVector< double > &	values,
		bool	alreadySorted = `false`
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Replaces the current data with the provided points in keys and values. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

If you can guarantee that the passed data points are sorted by keys in ascending order, you can set alreadySorted to true, to improve performance by saving a sorting run.

See also: addData

Definition at line 20861 of file qcustomplot.cpp.

References addData(), and QCPAbstractPlottable1D< QCPGraphData >::mDataContainer.

◆ setData() [3/4]

void QCPGraph::setData	(	QCPDataMap *	data,
		bool	copy = `false`
	)

Replaces the current data with the provided data.

If copy is set to true, data points in data will only be copied. if false, the graph takes ownership of the passed data and replaces the internal data pointer with it. This is significantly faster than copying for large datasets.

Alternatively, you can also access and modify the graph's data via the data method, which returns a pointer to the internal QCPDataMap.

Definition at line 14909 of file qcustomplot.cpp.

References copy, data(), and mData.

◆ setData() [4/4]

void QCPGraph::setData ( QSharedPointer< QCPGraphDataContainer > data )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Replaces the current data container with the provided data container.

Since a QSharedPointer is used, multiple QCPGraphs may share the same data container safely. Modifying the data in the container will then affect all graphs that share the container. Sharing can be achieved by simply exchanging the data containers wrapped in shared pointers:

If you do not wish to share containers, but create a copy from an existing container, rather use the QCPDataContainer<DataType>::set method on the graph's data container directly:

See also: addData

Definition at line 20845 of file qcustomplot.cpp.

References data(), and QCPAbstractPlottable1D< QCPGraphData >::mDataContainer.

Referenced by cvProbeFilter::apply(), ccHistogramWindow::refresh(), ccWaveWidget::refresh(), and WolmanCustomPlot::WolmanCustomPlot().

◆ setDataBothError() [1/2]

void QCPGraph::setDataBothError	(	const QVector< double > &	key,
		const QVector< double > &	value,
		const QVector< double > &	keyError,
		const QVector< double > &	valueError
	)

Replaces the current data with the provided points in key and value pairs. Additionally the symmetrical key and value errors of the data points are set to the values in keyError and valueError. For error bars to show appropriately, see setErrorType. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

For asymmetrical errors (plus different from minus), see the overloaded version of this function.

Definition at line 15065 of file qcustomplot.cpp.

References QCPData::key, QCPData::keyErrorMinus, QCPData::keyErrorPlus, mData, qtCompatMapInsertMulti(), QCPData::value, QCPData::valueErrorMinus, and QCPData::valueErrorPlus.

◆ setDataBothError() [2/2]

void QCPGraph::setDataBothError	(	const QVector< double > &	key,
		const QVector< double > &	value,
		const QVector< double > &	keyErrorMinus,
		const QVector< double > &	keyErrorPlus,
		const QVector< double > &	valueErrorMinus,
		const QVector< double > &	valueErrorPlus
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Replaces the current data with the provided points in key and value pairs. Additionally the negative key and value errors of the data points are set to the values in keyErrorMinus and valueErrorMinus. The positive key and value errors are set to the values in keyErrorPlus valueErrorPlus. For error bars to show appropriately, see setErrorType. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

Definition at line 15096 of file qcustomplot.cpp.

References QCPData::key, QCPData::keyErrorMinus, QCPData::keyErrorPlus, mData, qtCompatMapInsertMulti(), QCPData::value, QCPData::valueErrorMinus, and QCPData::valueErrorPlus.

◆ setDataKeyError() [1/2]

void QCPGraph::setDataKeyError	(	const QVector< double > &	key,
		const QVector< double > &	value,
		const QVector< double > &	keyError
	)

Replaces the current data with the provided points in key and value pairs. Additionally the symmetrical key error of the data points are set to the values in keyError. For error bars to show appropriately, see setErrorType. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

For asymmetrical errors (plus different from minus), see the overloaded version of this function.

Definition at line 15009 of file qcustomplot.cpp.

References QCPData::key, QCPData::keyErrorMinus, QCPData::keyErrorPlus, mData, qtCompatMapInsertMulti(), and QCPData::value.

◆ setDataKeyError() [2/2]

void QCPGraph::setDataKeyError	(	const QVector< double > &	key,
		const QVector< double > &	value,
		const QVector< double > &	keyErrorMinus,
		const QVector< double > &	keyErrorPlus
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Replaces the current data with the provided points in key and value pairs. Additionally the negative key error of the data points are set to the values in keyErrorMinus, the positive key error to keyErrorPlus. For error bars to show appropriately, see setErrorType. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

Definition at line 15035 of file qcustomplot.cpp.

References QCPData::key, QCPData::keyErrorMinus, QCPData::keyErrorPlus, mData, qtCompatMapInsertMulti(), and QCPData::value.

◆ setDataValueError() [1/2]

void QCPGraph::setDataValueError	(	const QVector< double > &	key,
		const QVector< double > &	value,
		const QVector< double > &	valueError
	)

Replaces the current data with the provided points in key and value pairs. Additionally the symmetrical value error of the data points are set to the values in valueError. For error bars to show appropriately, see setErrorType. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

For asymmetrical errors (plus different from minus), see the overloaded version of this function.

Definition at line 14954 of file qcustomplot.cpp.

References QCPData::key, mData, qtCompatMapInsertMulti(), QCPData::value, QCPData::valueErrorMinus, and QCPData::valueErrorPlus.

◆ setDataValueError() [2/2]

void QCPGraph::setDataValueError	(	const QVector< double > &	key,
		const QVector< double > &	value,
		const QVector< double > &	valueErrorMinus,
		const QVector< double > &	valueErrorPlus
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Replaces the current data with the provided points in key and value pairs. Additionally the negative value error of the data points are set to the values in valueErrorMinus, the positive value error to valueErrorPlus. For error bars to show appropriately, see setErrorType. The provided vectors should have equal length. Else, the number of added points will be the size of the smallest vector.

Definition at line 14980 of file qcustomplot.cpp.

References QCPData::key, mData, qtCompatMapInsertMulti(), QCPData::value, QCPData::valueErrorMinus, and QCPData::valueErrorPlus.

◆ setErrorBarSize()

void QCPGraph::setErrorBarSize ( double size )

Sets the width of the handles at both ends of an error bar in pixels.

Definition at line 15161 of file qcustomplot.cpp.

References mErrorBarSize, and size.

◆ setErrorBarSkipSymbol()

void QCPGraph::setErrorBarSkipSymbol ( bool enabled )

If enabled is set to true, the error bar will not be drawn as a solid line under the scatter symbol but leave some free space around the symbol.

This feature uses the current scatter size (QCPScatterStyle::setSize) to determine the size of the area to leave blank. So when drawing Pixmaps as scatter points (QCPScatterStyle::ssPixmap), the scatter size must be set manually to a value corresponding to the size of the Pixmap, if the error bars should leave gaps to its boundaries.

setErrorType, setErrorBarSize, setScatterStyle

Definition at line 15175 of file qcustomplot.cpp.

References mErrorBarSkipSymbol.

◆ setErrorPen()

void QCPGraph::setErrorPen ( const QPen & pen )

Sets the pen with which the error bars will be drawn.

See also: setErrorBarSize, setErrorType

Definition at line 15156 of file qcustomplot.cpp.

References mErrorPen, and QCPAbstractPlottable::pen().

◆ setErrorType()

void QCPGraph::setErrorType ( ErrorType errorType )

Sets which kind of error bars (Key Error, Value Error or both) should be drawn on each data point. If you set errorType to something other than etNone, make sure to actually pass error data via the specific setData functions along with the data points (e.g. setDataValueError, setDataKeyError, setDataBothError).

See also: ErrorType

Definition at line 15150 of file qcustomplot.cpp.

References errorType(), and mErrorType.

◆ setLineStyle() [1/2]

void QCPGraph::setLineStyle ( LineStyle ls )

Sets how the single data points are connected in the plot. For scatter-only plots, set ls to lsNone and setScatterStyle to the desired scatter style.

See also: setScatterStyle

Definition at line 20875 of file qcustomplot.cpp.

References mLineStyle.

Referenced by QCPGraph(), and WolmanCustomPlot::WolmanCustomPlot().

◆ setLineStyle() [2/2]

void QCPGraph::setLineStyle ( LineStyle ls )

◆ setScatterSkip()

void QCPGraph::setScatterSkip ( int skip )

If scatters are displayed (scatter style not QCPScatterStyle::ssNone), skip number of scatter points are skipped/not drawn after every drawn scatter point.

This can be used to make the data appear sparser while for example still having a smooth line, and to improve performance for very high density plots.

If skip is set to 0 (default), all scatter points are drawn.

See also: setScatterStyle

Definition at line 20900 of file qcustomplot.cpp.

References mScatterSkip.

Referenced by QCPGraph().

◆ setScatterStyle() [1/2]

void QCPGraph::setScatterStyle ( const QCPScatterStyle & style )

Sets the visual appearance of single data points in the plot. If set to QCPScatterStyle::ssNone, no scatter points are drawn (e.g. for line-only-plots with appropriate line style).

See also: QCPScatterStyle, setLineStyle

Definition at line 20884 of file qcustomplot.cpp.

References mScatterStyle.

Referenced by WolmanCustomPlot::WolmanCustomPlot().

◆ setScatterStyle() [2/2]

void QCPGraph::setScatterStyle ( const QCPScatterStyle & style )

◆ upperFillBasePoint()

protected

Definition at line 6081 of file qcustomplot.h.

Referenced by draw(), drawError(), drawLegendIcon(), drawScatterPlot(), pointDistance(), and setScatterStyle().

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

/root/ACloudViewer/app/extern/QCustomPlot/qcustomplot.h
/root/ACloudViewer/app/extern/QCustomPlot/qcustomplot.cpp

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Changing the appearance

Filling under or between graphs

Changing the appearance

Filling under or between graphs

Member Enumeration Documentation

◆ ErrorType

◆ LineStyle [1/2]

◆ LineStyle [2/2]

Constructor & Destructor Documentation

◆ QCPGraph() [1/2]

◆ ~QCPGraph() [1/2]

◆ QCPGraph() [2/2]

◆ ~QCPGraph() [2/2]

Member Function Documentation

◆ adaptiveSampling() [1/2]

◆ adaptiveSampling() [2/2]

◆ addData() [1/6]

◆ addData() [2/6]

◆ addData() [3/6]

◆ addData() [4/6]

◆ addData() [5/6]

◆ addData() [6/6]

◆ addFillBasePoints()

◆ channelFillGraph() [1/2]

◆ channelFillGraph() [2/2]

◆ clearData()

◆ countDataInBounds()

◆ data() [1/2]

◆ data() [2/2]

◆ dataToImpulseLines()

◆ dataToLines()

◆ dataToStepCenterLines()

◆ dataToStepLeftLines()

◆ dataToStepRightLines()

◆ draw() [1/2]

◆ draw() [2/2]

◆ drawError()

◆ drawFill() [1/2]

◆ drawFill() [2/2]

◆ drawImpulsePlot() [1/2]

◆ drawImpulsePlot() [2/2]

◆ drawLegendIcon() [1/2]

◆ drawLegendIcon() [2/2]

◆ drawLinePlot() [1/2]

◆ drawLinePlot() [2/2]

◆ drawScatterPlot() [1/2]

◆ drawScatterPlot() [2/2]

◆ errorBarSize()

◆ errorBarSkipSymbol()

◆ errorPen()

◆ errorType()

◆ findIndexAboveX() [1/2]

◆ findIndexAboveX() [2/2]

◆ findIndexAboveY() [1/2]

◆ findIndexAboveY() [2/2]

◆ findIndexBelowX() [1/2]

◆ findIndexBelowX() [2/2]

◆ findIndexBelowY() [1/2]

◆ findIndexBelowY() [2/2]

◆ getChannelFillPolygon() [1/2]

◆ getChannelFillPolygon() [2/2]

◆ getFillBasePoint()

◆ getFillPolygon()

◆ getImpulsePlotData()

◆ getKeyRange() [1/3]

◆ getKeyRange() [2/3]

◆ getKeyRange() [3/3]

◆ getLinePlotData()

◆ getLines()

◆ getNonNanSegments()

◆ getOptimizedLineData()

◆ getOptimizedScatterData()

◆ getOverlappingSegments()

◆ getPlotData()