Manages a single axis inside a QCustomPlot. More...

#include <qcustomplot.h>

Inheritance diagram for QCPAxis:

Collaboration diagram for QCPAxis:

[legend]

Public Types
enum	AxisType { atLeft = 0x01, atRight = 0x02, atTop = 0x04, atBottom = 0x08 }

enum	LabelSide { lsInside, lsOutside }

enum	ScaleType { stLinear, stLogarithmic }

enum	SelectablePart { spNone = 0, spAxis = 0x001, spTickLabels = 0x002, spAxisLabel = 0x004 }

Signals
void	rangeChanged (const QCPRange &newRange)

void	rangeChanged (const QCPRange &newRange, const QCPRange &oldRange)

void	scaleTypeChanged (QCPAxis::ScaleType scaleType)

void	selectionChanged (const QCPAxis::SelectableParts &parts)

void	selectableChanged (const QCPAxis::SelectableParts &parts)

Signals inherited from QCPLayerable
void	layerChanged (QCPLayer *newLayer)

Public Member Functions
	QCPAxis (QCPAxisRect *parent, AxisType type)

virtual	~QCPAxis ()

AxisType	axisType () const

QCPAxisRect *	axisRect () const

ScaleType	scaleType () const

const QCPRange	range () const

bool	rangeReversed () const

QSharedPointer< QCPAxisTicker >	ticker () const

bool	ticks () const

bool	tickLabels () const

int	tickLabelPadding () const

QFont	tickLabelFont () const

QColor	tickLabelColor () const

double	tickLabelRotation () const

LabelSide	tickLabelSide () const

QString	numberFormat () const

int	numberPrecision () const

QVector< double >	tickVector () const

QVector< QString >	tickVectorLabels () const

int	tickLengthIn () const

int	tickLengthOut () const

bool	subTicks () const

int	subTickLengthIn () const

int	subTickLengthOut () const

QPen	basePen () const

QPen	tickPen () const

QPen	subTickPen () const

QFont	labelFont () const

QColor	labelColor () const

QString	label () const

int	labelPadding () const

int	padding () const

int	offset () const

SelectableParts	selectedParts () const

SelectableParts	selectableParts () const

QFont	selectedTickLabelFont () const

QFont	selectedLabelFont () const

QColor	selectedTickLabelColor () const

QColor	selectedLabelColor () const

QPen	selectedBasePen () const

QPen	selectedTickPen () const

QPen	selectedSubTickPen () const

QCPLineEnding	lowerEnding () const

QCPLineEnding	upperEnding () const

QCPGrid *	grid () const

Q_SLOT void	setScaleType (QCPAxis::ScaleType type)

Q_SLOT void	setRange (const QCPRange &range)

void	setRange (double lower, double upper)

void	setRange (double position, double size, Qt::AlignmentFlag alignment)

void	setRangeLower (double lower)

void	setRangeUpper (double upper)

void	setRangeReversed (bool reversed)

void	setTicker (QSharedPointer< QCPAxisTicker > ticker)

void	setTicks (bool show)

void	setTickLabels (bool show)

void	setTickLabelPadding (int padding)

void	setTickLabelFont (const QFont &font)

void	setTickLabelColor (const QColor &color)

void	setTickLabelRotation (double degrees)

void	setTickLabelSide (LabelSide side)

void	setNumberFormat (const QString &formatCode)

void	setNumberPrecision (int precision)

void	setTickLength (int inside, int outside=0)

void	setTickLengthIn (int inside)

void	setTickLengthOut (int outside)

void	setSubTicks (bool show)

void	setSubTickLength (int inside, int outside=0)

void	setSubTickLengthIn (int inside)

void	setSubTickLengthOut (int outside)

void	setBasePen (const QPen &pen)

void	setTickPen (const QPen &pen)

void	setSubTickPen (const QPen &pen)

void	setLabelFont (const QFont &font)

void	setLabelColor (const QColor &color)

void	setLabel (const QString &str)

void	setLabelPadding (int padding)

void	setPadding (int padding)

void	setOffset (int offset)

void	setSelectedTickLabelFont (const QFont &font)

void	setSelectedLabelFont (const QFont &font)

void	setSelectedTickLabelColor (const QColor &color)

void	setSelectedLabelColor (const QColor &color)

void	setSelectedBasePen (const QPen &pen)

void	setSelectedTickPen (const QPen &pen)

void	setSelectedSubTickPen (const QPen &pen)

Q_SLOT void	setSelectableParts (const QCPAxis::SelectableParts &selectableParts)

Q_SLOT void	setSelectedParts (const QCPAxis::SelectableParts &selectedParts)

void	setLowerEnding (const QCPLineEnding &ending)

void	setUpperEnding (const QCPLineEnding &ending)

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

Qt::Orientation	orientation () const

int	pixelOrientation () const

void	moveRange (double diff)

void	scaleRange (double factor)

void	scaleRange (double factor, double center)

void	setScaleRatio (const QCPAxis *otherAxis, double ratio=1.0)

void	rescale (bool onlyVisiblePlottables=false)

double	pixelToCoord (double value) const

double	coordToPixel (double value) const

SelectablePart	getPartAt (const QPointF &pos) const

QList< QCPAbstractPlottable * >	plottables () const

QList< QCPGraph * >	graphs () const

QList< QCPAbstractItem * >	items () 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

Static Public Member Functions
static AxisType	marginSideToAxisType (QCP::MarginSide side)

static Qt::Orientation	orientation (AxisType type)

static AxisType	opposite (AxisType type)

Protected Member Functions
virtual int	calculateMargin ()

virtual void	applyDefaultAntialiasingHint (QCPPainter *painter) const Q_DECL_OVERRIDE

virtual void	draw (QCPPainter *painter) Q_DECL_OVERRIDE

virtual QCP::Interaction	selectionCategory () const Q_DECL_OVERRIDE

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

virtual void	deselectEvent (bool *selectionStateChanged) Q_DECL_OVERRIDE

void	setupTickVectors ()

QPen	getBasePen () const

QPen	getTickPen () const

QPen	getSubTickPen () const

QFont	getTickLabelFont () const

QFont	getLabelFont () const

QColor	getTickLabelColor () const

QColor	getLabelColor () const

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

virtual QRect	clipRect () const

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

Protected Attributes
AxisType	mAxisType

QCPAxisRect *	mAxisRect

int	mPadding

Qt::Orientation	mOrientation

SelectableParts	mSelectableParts

SelectableParts	mSelectedParts

QPen	mBasePen

QPen	mSelectedBasePen

QString	mLabel

QFont	mLabelFont

QFont	mSelectedLabelFont

QColor	mLabelColor

QColor	mSelectedLabelColor

bool	mTickLabels

QFont	mTickLabelFont

QFont	mSelectedTickLabelFont

QColor	mTickLabelColor

QColor	mSelectedTickLabelColor

int	mNumberPrecision

QLatin1Char	mNumberFormatChar

bool	mNumberBeautifulPowers

bool	mTicks

bool	mSubTicks

QPen	mTickPen

QPen	mSelectedTickPen

QPen	mSubTickPen

QPen	mSelectedSubTickPen

QCPRange	mRange

bool	mRangeReversed

ScaleType	mScaleType

QCPGrid *	mGrid

QCPAxisPainterPrivate *	mAxisPainter

QSharedPointer< QCPAxisTicker >	mTicker

QVector< double >	mTickVector

QVector< QString >	mTickVectorLabels

QVector< double >	mSubTickVector

bool	mCachedMarginValid

int	mCachedMargin

Protected Attributes inherited from QCPLayerable
bool	mVisible

QCustomPlot *	mParentPlot

QPointer< QCPLayerable >	mParentLayerable

QCPLayer *	mLayer

bool	mAntialiased

Friends
class	QCustomPlot

class	QCPGrid

class	QCPAxisRect

Detailed Description

Manages a single axis inside a QCustomPlot.

Usually doesn't need to be instantiated externally. Access QCustomPlot's default four axes via QCustomPlot::xAxis (bottom), QCustomPlot::yAxis (left), QCustomPlot::xAxis2 (top) and QCustomPlot::yAxis2 (right).

Axes are always part of an axis rect, see QCPAxisRect.

Naming convention of axis parts

Overview of the spacings and paddings that define the geometry of an axis. The dashed gray line on the left represents the QCustomPlot widget border.

Each axis holds an instance of QCPAxisTicker which is used to generate the tick coordinates and tick labels. You can access the currently installed ticker or set a new one (possibly one of the specialized subclasses, or your own subclass) via setTicker. For details, see the documentation of QCPAxisTicker.

Definition at line 1889 of file qcustomplot.h.

Member Enumeration Documentation

enum QCPAxis::AxisType

Defines at which side of the axis rect the axis will appear. This also affects how the tick marks are drawn, on which side the labels are placed etc.

Enumerator
atLeft	`0x01` Axis is vertical and on the left side of the axis rect
atRight	`0x02` Axis is vertical and on the right side of the axis rect
atTop	`0x04` Axis is horizontal and on the top side of the axis rect
atBottom	`0x08` Axis is horizontal and on the bottom side of the axis rect

Definition at line 1942 of file qcustomplot.h.

enum QCPAxis::LabelSide

Defines on which side of the axis the tick labels (numbers) shall appear.

See also: setTickLabelSide

Enumerator
lsInside	Tick labels will be displayed inside the axis rect and clipped to the inner axis rect.
lsOutside	Tick labels will be displayed outside the axis rect.

Definition at line 1955 of file qcustomplot.h.

enum QCPAxis::ScaleType

Defines the scale of an axis.

See also: setScaleType

Enumerator
stLinear	Linear scaling.
stLogarithmic	Logarithmic scaling with correspondingly transformed axis coordinates (possibly also setTicker to a QCPAxisTickerLog instance).

Definition at line 1963 of file qcustomplot.h.

enum QCPAxis::SelectablePart

Defines the selectable parts of an axis.

See also: setSelectableParts, setSelectedParts

Enumerator
spNone	None of the selectable parts.
spAxis	The axis backbone and tick marks.
spTickLabels	Tick labels (numbers) of this axis (as a whole, not individually)
spAxisLabel	The axis label.

Definition at line 1971 of file qcustomplot.h.

Constructor & Destructor Documentation

QCPAxis::QCPAxis	(	QCPAxisRect *	parent,
		AxisType	type
	)

explicit

Constructs an Axis instance of Type type for the axis rect parent.

Usually it isn't necessary to instantiate axes directly, because you can let QCustomPlot create them for you with QCPAxisRect::addAxis. If you want to use own QCPAxis-subclasses however, create them manually and then inject them also via QCPAxisRect::addAxis.

Definition at line 7382 of file qcustomplot.cpp.

QCPAxis::~QCPAxis ( )

virtual

Definition at line 7450 of file qcustomplot.cpp.

Member Function Documentation

void QCPAxis::applyDefaultAntialiasingHint ( QCPPainter * painter ) const

protectedvirtual

Implements QCPLayerable.

Definition at line 8697 of file qcustomplot.cpp.

QCPAxisRect* QCPAxis::axisRect ( ) const

inline

Definition at line 1985 of file qcustomplot.h.

AxisType QCPAxis::axisType ( void ) const

inline

Definition at line 1984 of file qcustomplot.h.

QPen QCPAxis::basePen ( ) const

inline

Definition at line 2006 of file qcustomplot.h.

int QCPAxis::calculateMargin ( )

protectedvirtual

Definition at line 8858 of file qcustomplot.cpp.

double QCPAxis::coordToPixel ( double value ) const

Transforms value, in coordinates of the axis, to pixel coordinates of the QCustomPlot widget.

Definition at line 8476 of file qcustomplot.cpp.

void QCPAxis::deselectEvent ( bool * selectionStateChanged )

protectedvirtual

Reimplemented from QCPLayerable.

Definition at line 8674 of file qcustomplot.cpp.

void QCPAxis::draw ( QCPPainter * painter )

protectedvirtual

Implements QCPLayerable.

Definition at line 8708 of file qcustomplot.cpp.

QPen QCPAxis::getBasePen ( ) const

protected

Definition at line 8779 of file qcustomplot.cpp.

QColor QCPAxis::getLabelColor ( ) const

protected

Definition at line 8839 of file qcustomplot.cpp.

QFont QCPAxis::getLabelFont ( ) const

protected

Definition at line 8819 of file qcustomplot.cpp.

QCPAxis::SelectablePart QCPAxis::getPartAt ( const QPointF & pos ) const

Returns the part of the axis that is hit by pos (in pixels). The return value of this function is independent of the user-selectable parts defined with setSelectableParts. Further, this function does not change the current selection state of the axis.

If the axis is not visible (setVisible), this function always returns spNone.

See also: setSelectedParts, setSelectableParts, QCustomPlot::setInteractions

Definition at line 8534 of file qcustomplot.cpp.

QPen QCPAxis::getSubTickPen ( ) const

protected

Definition at line 8799 of file qcustomplot.cpp.

QColor QCPAxis::getTickLabelColor ( ) const

protected

Definition at line 8829 of file qcustomplot.cpp.

QFont QCPAxis::getTickLabelFont ( ) const

protected

Definition at line 8809 of file qcustomplot.cpp.

QPen QCPAxis::getTickPen ( ) const

protected

Definition at line 8789 of file qcustomplot.cpp.

QList< QCPGraph * > QCPAxis::graphs ( ) const

Returns a list of all the graphs that have this axis as key or value axis.

See also: plottables, items

Definition at line 8587 of file qcustomplot.cpp.

QCPGrid * QCPAxis::grid ( ) const

inline

Returns the QCPGrid instance belonging to this axis. Access it to set details about the way the grid is displayed.

Definition at line 2026 of file qcustomplot.h.

QList< QCPAbstractItem * > QCPAxis::items ( ) const

Returns a list of all the items that are associated with this axis. An item is considered associated with an axis if at least one of its positions uses the axis as key or value axis.

See also: plottables, graphs

Definition at line 8606 of file qcustomplot.cpp.

QString QCPAxis::label ( ) const

inline

Definition at line 2011 of file qcustomplot.h.

QColor QCPAxis::labelColor ( ) const

inline

Definition at line 2010 of file qcustomplot.h.

QFont QCPAxis::labelFont ( ) const

inline

Definition at line 2009 of file qcustomplot.h.

int QCPAxis::labelPadding ( ) const

Definition at line 7513 of file qcustomplot.cpp.

QCPLineEnding QCPAxis::lowerEnding ( ) const

Definition at line 7525 of file qcustomplot.cpp.

QCPAxis::AxisType QCPAxis::marginSideToAxisType ( QCP::MarginSide side )

static

Transforms a margin side to the logically corresponding axis type. (QCP::msLeft to QCPAxis::atLeft, QCP::msRight to QCPAxis::atRight, etc.)

Definition at line 8630 of file qcustomplot.cpp.

void QCPAxis::moveRange ( double diff )

If the scale type (setScaleType) is stLinear, diff is added to the lower and upper bounds of the range. The range is simply moved by diff.

If the scale type is stLogarithmic, the range bounds are multiplied by diff. This corresponds to an apparent "linear" move in logarithmic scaling by a distance of log(diff).

Definition at line 8287 of file qcustomplot.cpp.

QString QCPAxis::numberFormat ( ) const

Definition at line 7475 of file qcustomplot.cpp.

int QCPAxis::numberPrecision ( ) const

inline

Definition at line 1998 of file qcustomplot.h.

int QCPAxis::offset ( ) const

Definition at line 7519 of file qcustomplot.cpp.

QCPAxis::AxisType QCPAxis::opposite ( QCPAxis::AxisType type )

static

Returns the axis type that describes the opposite axis of an axis with the specified type.

Definition at line 8647 of file qcustomplot.cpp.

Qt::Orientation QCPAxis::orientation ( ) const

inline

Returns the orientation of this axis. The axis orientation (horizontal or vertical) is deduced from the axis type (left, top, right or bottom).

See also: orientation(AxisType type), pixelOrientation

Definition at line 2078 of file qcustomplot.h.

static Qt::Orientation QCPAxis::orientation ( AxisType type )

inlinestatic

Returns the orientation of the specified axis type

See also: orientation(), pixelOrientation

Definition at line 2093 of file qcustomplot.h.

int QCPAxis::padding ( ) const

inline

Definition at line 2013 of file qcustomplot.h.

int QCPAxis::pixelOrientation ( ) const

inline

Returns which direction points towards higher coordinate values/keys, in pixel space.

This method returns either 1 or -1. If it returns 1, then going in the positive direction along the orientation of the axis in pixels corresponds to going from lower to higher axis coordinates. On the other hand, if this method returns -1, going to smaller pixel values corresponds to going from lower to higher axis coordinates.

For example, this is useful to easily shift axis coordinates by a certain amount given in pixels, without having to care about reversed or vertically aligned axes:

double newKey = keyAxis->pixelToCoord(keyAxis->coordToPixel(oldKey)+10*keyAxis->pixelOrientation());

newKey will then contain a key that is ten pixels towards higher keys, starting from oldKey.

Definition at line 2079 of file qcustomplot.h.

double QCPAxis::pixelToCoord ( double value ) const

Transforms value, in pixel coordinates of the QCustomPlot widget, to axis coordinates.

Definition at line 8438 of file qcustomplot.cpp.

QList< QCPAbstractPlottable * > QCPAxis::plottables ( ) const

Returns a list of all the plottables that have this axis as key or value axis.

If you are only interested in plottables of type QCPGraph, see graphs.

See also: graphs, items

Definition at line 8569 of file qcustomplot.cpp.

const QCPRange QCPAxis::range ( ) const

inline

Definition at line 1987 of file qcustomplot.h.

void QCPAxis::rangeChanged ( const QCPRange & newRange )

signal

This signal is emitted when the range of this axis has changed. You can connect it to the setRange slot of another axis to communicate the new range to the other axis, in order for it to be synchronized.

You may also manipulate/correct the range with setRange in a slot connected to this signal. This is useful if for example a maximum range span shall not be exceeded, or if the lower/upper range shouldn't go beyond certain values (see QCPRange::bounded). For example, the following slot would limit the x axis to ranges between 0 and 10:

customPlot->xAxis->setRange(newRange.bounded(0, 10))

void QCPAxis::rangeChanged	(	const QCPRange &	newRange,
		const QCPRange &	oldRange
	)

signal

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

Additionally to the new range, this signal also provides the previous range held by the axis as oldRange.

bool QCPAxis::rangeReversed ( ) const

inline

Definition at line 1988 of file qcustomplot.h.

void QCPAxis::rescale ( bool onlyVisiblePlottables = false )

Changes the axis range such that all plottables associated with this axis are fully visible in that dimension.

See also: QCPAbstractPlottable::rescaleAxes, QCustomPlot::rescaleAxes

Definition at line 8389 of file qcustomplot.cpp.

void QCPAxis::scaleRange ( double factor )

Scales the range of this axis by factor around the center of the current axis range. For example, if factor is 2.0, then the axis range will double its size, and the point at the axis range center won't have changed its position in the QCustomPlot widget (i.e. coordinates around the center will have moved symmetrically closer).

If you wish to scale around a different coordinate than the current axis range center, use the overload scaleRange(double factor, double center).

Definition at line 8312 of file qcustomplot.cpp.

void QCPAxis::scaleRange	(	double	factor,
		double	center
	)

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

Scales the range of this axis by factor around the coordinate center. For example, if factor is 2.0, center is 1.0, then the axis range will double its size, and the point at coordinate 1.0 won't have changed its position in the QCustomPlot widget (i.e. coordinates around 1.0 will have moved symmetrically closer to 1.0).

See also: scaleRange(double factor)

Definition at line 8326 of file qcustomplot.cpp.

ScaleType QCPAxis::scaleType ( ) const

inline

Definition at line 1986 of file qcustomplot.h.

void QCPAxis::scaleTypeChanged ( QCPAxis::ScaleType scaleType )

signal

This signal is emitted when the scale type changes, by calls to setScaleType

void QCPAxis::selectableChanged ( const QCPAxis::SelectableParts & parts )

signal

This signal is emitted when the selectability changes, by calls to setSelectableParts

SelectableParts QCPAxis::selectableParts ( ) const

inline

Definition at line 2016 of file qcustomplot.h.

QPen QCPAxis::selectedBasePen ( ) const

inline

Definition at line 2021 of file qcustomplot.h.

QColor QCPAxis::selectedLabelColor ( ) const

inline

Definition at line 2020 of file qcustomplot.h.

QFont QCPAxis::selectedLabelFont ( ) const

inline

Definition at line 2018 of file qcustomplot.h.

SelectableParts QCPAxis::selectedParts ( ) const

inline

Definition at line 2015 of file qcustomplot.h.

QPen QCPAxis::selectedSubTickPen ( ) const

inline

Definition at line 2023 of file qcustomplot.h.

QColor QCPAxis::selectedTickLabelColor ( ) const

inline

Definition at line 2019 of file qcustomplot.h.

QFont QCPAxis::selectedTickLabelFont ( ) const

inline

Definition at line 2017 of file qcustomplot.h.

QPen QCPAxis::selectedTickPen ( ) const

inline

Definition at line 2022 of file qcustomplot.h.

void QCPAxis::selectEvent	(	QMouseEvent *	event,
		bool	additive,
		const QVariant &	details,
		bool *	selectionStateChanged
	)

protectedvirtual

Reimplemented from QCPLayerable.

Definition at line 8660 of file qcustomplot.cpp.

QCP::Interaction QCPAxis::selectionCategory ( ) const

protectedvirtual

Reimplemented from QCPLayerable.

Definition at line 8902 of file qcustomplot.cpp.

void QCPAxis::selectionChanged ( const QCPAxis::SelectableParts & parts )

signal

This signal is emitted when the selection state of this axis has changed, either by user interaction or by a direct call to setSelectedParts.

double QCPAxis::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.

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

Reimplemented from QCPLayerable.

Definition at line 8550 of file qcustomplot.cpp.

void QCPAxis::setBasePen ( const QPen & pen )

Sets the pen, the axis base line is drawn with.

See also: setTickPen, setSubTickPen

Definition at line 8064 of file qcustomplot.cpp.

void QCPAxis::setLabel ( const QString & str )

Sets the text of the axis label that will be shown below/above or next to the axis, depending on its orientation. To disable axis labels, pass an empty string as str.

Definition at line 8117 of file qcustomplot.cpp.

void QCPAxis::setLabelColor ( const QColor & color )

Sets the color of the axis label.

See also: setLabelFont

Definition at line 8108 of file qcustomplot.cpp.

void QCPAxis::setLabelFont ( const QFont & font )

Sets the font of the axis label.

See also: setLabelColor

Definition at line 8094 of file qcustomplot.cpp.

void QCPAxis::setLabelPadding ( int padding )

Sets the distance between the tick labels and the axis label.

See also: setTickLabelPadding, setPadding

Definition at line 8131 of file qcustomplot.cpp.

void QCPAxis::setLowerEnding ( const QCPLineEnding & ending )

Sets the style for the lower axis ending. See the documentation of QCPLineEnding for available styles.

For horizontal axes, this method refers to the left ending, for vertical axes the bottom ending. Note that this meaning does not change when the axis range is reversed with setRangeReversed.

See also: setUpperEnding

Definition at line 8260 of file qcustomplot.cpp.

void QCPAxis::setNumberFormat ( const QString & formatCode )

Sets the number format for the numbers in tick labels. This formatCode is an extended version of the format code used e.g. by QString::number() and QLocale::toString(). For reference about that, see the "Argument Formats" section in the detailed description of the QString class.

formatCode is a string of one, two or three characters. The first character is identical to the normal format code used by Qt. In short, this means: 'e'/'E' scientific format, 'f' fixed format, 'g'/'G' scientific or fixed, whichever is shorter.

The second and third characters are optional and specific to QCustomPlot:
If the first char was 'e' or 'g', numbers are/might be displayed in the scientific format, e.g. "5.5e9", which is ugly in a plot. So when the second char of formatCode is set to 'b' (for "beautiful"), those exponential numbers are formatted in a more natural way, i.e. "5.5 [multiplication sign] 10 [superscript] 9". By default, the multiplication sign is a centered dot. If instead a cross should be shown (as is usual in the USA), the third char of formatCode can be set to 'c'. The inserted multiplication signs are the UTF-8 characters 215 (0xD7) for the cross and 183 (0xB7) for the dot.

Examples for formatCode:

g normal format code behaviour. If number is small, fixed format is used, if number is large, normal scientific format is used
gb If number is small, fixed format is used, if number is large, scientific format is used with beautifully typeset decimal powers and a dot as multiplication sign
ebc All numbers are in scientific format with beautifully typeset decimal power and a cross as multiplication sign
fb illegal format code, since fixed format doesn't support (or need) beautifully typeset decimal powers. Format code will be reduced to 'f'.
hello illegal format code, since first char is not 'e', 'E', 'f', 'g' or 'G'. Current format code will not be changed.

Definition at line 7886 of file qcustomplot.cpp.

void QCPAxis::setNumberPrecision ( int precision )

Sets the precision of the tick label numbers. See QLocale::toString(double i, char f, int prec) for details. The effect of precisions are most notably for number Formats starting with 'e', see setNumberFormat

Definition at line 7946 of file qcustomplot.cpp.

void QCPAxis::setOffset ( int offset )

Sets the offset the axis has to its axis rect side.

If an axis rect side has multiple axes and automatic margin calculation is enabled for that side, only the offset of the inner most axis has meaning (even if it is set to be invisible). The offset of the other, outer axes is controlled automatically, to place them at appropriate positions.

Definition at line 8167 of file qcustomplot.cpp.

void QCPAxis::setPadding ( int padding )

Sets the padding of the axis.

When QCPAxisRect::setAutoMargins is enabled, the padding is the additional outer most space, that is left blank.

The axis padding has no meaning if QCPAxisRect::setAutoMargins is disabled.

See also: setLabelPadding, setTickLabelPadding

Definition at line 8150 of file qcustomplot.cpp.

void QCPAxis::setRange ( const QCPRange & range )

Sets the range of the axis.

This slot may be connected with the rangeChanged signal of another axis so this axis is always synchronized with the other axis range, when it changes.

To invert the direction of an axis, use setRangeReversed.

Definition at line 7566 of file qcustomplot.cpp.

void QCPAxis::setRange	(	double	lower,
		double	upper
	)

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

Sets the lower and upper bound of the axis range.

To invert the direction of an axis, use setRangeReversed.

There is also a slot to set a range, see setRange(const QCPRange &range).

Definition at line 7636 of file qcustomplot.cpp.

void QCPAxis::setRange	(	double	position,
		double	size,
		Qt::AlignmentFlag	alignment
	)

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

Sets the range of the axis.

The position coordinate indicates together with the alignment parameter, where the new range will be positioned. size defines the size of the new axis range. alignment may be Qt::AlignLeft, Qt::AlignRight or Qt::AlignCenter. This will cause the left border, right border, or center of the range to be aligned with position. Any other values of alignment will default to Qt::AlignCenter.

Definition at line 7667 of file qcustomplot.cpp.

void QCPAxis::setRangeLower ( double lower )

Sets the lower bound of the axis range. The upper bound is not changed.

See also: setRange

Definition at line 7681 of file qcustomplot.cpp.

void QCPAxis::setRangeReversed ( bool reversed )

Sets whether the axis range (direction) is displayed reversed. Normally, the values on horizontal axes increase left to right, on vertical axes bottom to top. When reversed is set to true, the direction of increasing values is inverted.

Note that the range and data interface stays the same for reversed axes, e.g. the lower part of the setRange interface will still reference the mathematically smaller number than the upper part.

Definition at line 7730 of file qcustomplot.cpp.

void QCPAxis::setRangeUpper ( double upper )

Sets the upper bound of the axis range. The lower bound is not changed.

See also: setRange

Definition at line 7703 of file qcustomplot.cpp.

void QCPAxis::setScaleRatio	(	const QCPAxis *	otherAxis,
		double	ratio = `1.0`
	)

Scales the range of this axis to have a certain scale ratio to otherAxis. The scaling will be done around the center of the current axis range.

For example, if ratio is 1, this axis is the yAxis and otherAxis is xAxis, graphs plotted with those axes will appear in a 1:1 aspect ratio, independent of the aspect ratio the axis rect has.

This is an operation that changes the range of this axis once, it doesn't fix the scale ratio indefinitely. Note that calling this function in the constructor of the QCustomPlot's parent won't have the desired effect, since the widget dimensions aren't defined yet, and a resizeEvent will follow.

Definition at line 8365 of file qcustomplot.cpp.

void QCPAxis::setScaleType ( QCPAxis::ScaleType type )

Sets whether the axis uses a linear scale or a logarithmic scale.

Note that this method controls the coordinate transformation. You will likely also want to use a logarithmic tick spacing and labeling, which can be achieved by setting an instance of QCPAxisTickerLog via setTicker. See the documentation of QCPAxisTickerLog about the details of logarithmic axis tick creation.

setNumberPrecision

Definition at line 7546 of file qcustomplot.cpp.

void QCPAxis::setSelectableParts ( const QCPAxis::SelectableParts & selectableParts )

Sets whether the user can (de-)select the parts in selectable by clicking on the QCustomPlot surface. (When QCustomPlot::setInteractions contains iSelectAxes.)

However, even when selectable is set to a value not allowing the selection of a specific part, it is still possible to set the selection of this part manually, by calling setSelectedParts directly.

See also: SelectablePart, setSelectedParts

Definition at line 7594 of file qcustomplot.cpp.

void QCPAxis::setSelectedBasePen ( const QPen & pen )

Sets the pen that is used to draw the axis base line when selected.

See also: setBasePen, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8225 of file qcustomplot.cpp.

void QCPAxis::setSelectedLabelColor ( const QColor & color )

Sets the color that is used for the axis label when it is selected.

See also: setLabelColor, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8215 of file qcustomplot.cpp.

void QCPAxis::setSelectedLabelFont ( const QFont & font )

Sets the font that is used for the axis label when it is selected.

See also: setLabelFont, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8191 of file qcustomplot.cpp.

void QCPAxis::setSelectedParts ( const QCPAxis::SelectableParts & selectedParts )

Sets the selected state of the respective axis parts described by SelectablePart. When a part is selected, it uses a different pen/font.

The entire selection mechanism for axes is handled automatically when QCustomPlot::setInteractions contains iSelectAxes. You only need to call this function when you wish to change the selection state manually.

This function can change the selection state of a part, independent of the setSelectableParts setting.

emits the selectionChanged signal when selected is different from the previous selection state.

See also: SelectablePart, setSelectableParts, selectTest, setSelectedBasePen, setSelectedTickPen, setSelectedSubTickPen, setSelectedTickLabelFont, setSelectedLabelFont, setSelectedTickLabelColor, setSelectedLabelColor

Definition at line 7618 of file qcustomplot.cpp.

void QCPAxis::setSelectedSubTickPen ( const QPen & pen )

Sets the pen that is used to draw the subticks when selected.

See also: setSubTickPen, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8245 of file qcustomplot.cpp.

void QCPAxis::setSelectedTickLabelColor ( const QColor & color )

Sets the color that is used for tick labels when they are selected.

See also: setTickLabelColor, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8202 of file qcustomplot.cpp.

void QCPAxis::setSelectedTickLabelFont ( const QFont & font )

Sets the font that is used for tick labels when they are selected.

See also: setTickLabelFont, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8177 of file qcustomplot.cpp.

void QCPAxis::setSelectedTickPen ( const QPen & pen )

Sets the pen that is used to draw the (major) ticks when selected.

See also: setTickPen, setSelectableParts, setSelectedParts, QCustomPlot::setInteractions

Definition at line 8235 of file qcustomplot.cpp.

void QCPAxis::setSubTickLength	(	int	inside,
		int	outside = `0`
	)

Sets the length of the subticks in pixels. inside is the length the subticks will reach inside the plot and outside is the length they will reach outside the plot. If outside is greater than zero, the tick labels and axis label will increase their distance to the axis accordingly, so they won't collide with the ticks.

See also: setTickLength, setSubTickLengthIn, setSubTickLengthOut

Definition at line 8023 of file qcustomplot.cpp.

void QCPAxis::setSubTickLengthIn ( int inside )

Sets the length of the inward subticks in pixels. inside is the length the subticks will reach inside the plot.

See also: setSubTickLengthOut, setSubTickLength, setTickLength

Definition at line 8035 of file qcustomplot.cpp.

void QCPAxis::setSubTickLengthOut ( int outside )

Sets the length of the outward subticks in pixels. outside is the length the subticks will reach outside the plot. If outside is greater than zero, the tick labels will increase their distance to the axis accordingly, so they won't collide with the ticks.

See also: setSubTickLengthIn, setSubTickLength, setTickLength

Definition at line 8050 of file qcustomplot.cpp.

void QCPAxis::setSubTickPen ( const QPen & pen )

Sets the pen, subtick marks will be drawn with.

See also: setSubTickCount, setSubTickLength, setBasePen

Definition at line 8084 of file qcustomplot.cpp.

void QCPAxis::setSubTicks ( bool show )

Sets whether sub tick marks are displayed.

Sub ticks are only potentially visible if (major) ticks are also visible (see setTicks)

See also: setTicks

Definition at line 8006 of file qcustomplot.cpp.

void QCPAxis::setTicker ( QSharedPointer< QCPAxisTicker > ticker )

The axis ticker is responsible for generating the tick positions and tick labels. See the documentation of QCPAxisTicker for details on how to work with axis tickers.

You can change the tick positioning/labeling behaviour of this axis by setting a different QCPAxisTicker subclass using this method. If you only wish to modify the currently installed axis ticker, access it via ticker.

Since the ticker is stored in the axis as a shared pointer, multiple axes may share the same axis ticker simply by passing the same shared pointer to multiple axes.

See also: ticker

Definition at line 7748 of file qcustomplot.cpp.

void QCPAxis::setTickLabelColor ( const QColor & color )

Sets the color of the tick labels.

See also: setTickLabels, setTickLabelFont

Definition at line 7820 of file qcustomplot.cpp.

void QCPAxis::setTickLabelFont ( const QFont & font )

Sets the font of the tick labels.

See also: setTickLabels, setTickLabelColor

Definition at line 7806 of file qcustomplot.cpp.

void QCPAxis::setTickLabelPadding ( int padding )

Sets the distance between the axis base line (including any outward ticks) and the tick labels.

See also: setLabelPadding, setPadding

Definition at line 7792 of file qcustomplot.cpp.

void QCPAxis::setTickLabelRotation ( double degrees )

Sets the rotation of the tick labels. If degrees is zero, the labels are drawn normally. Else, the tick labels are drawn rotated by degrees clockwise. The specified angle is bound to values from -90 to 90 degrees.

If degrees is exactly -90, 0 or 90, the tick labels are centered on the tick coordinate. For other angles, the label is drawn with an offset such that it seems to point toward or away from the tick mark.

Definition at line 7834 of file qcustomplot.cpp.

void QCPAxis::setTickLabels ( bool show )

Sets whether tick labels are displayed. Tick labels are the numbers drawn next to tick marks.

Definition at line 7777 of file qcustomplot.cpp.

void QCPAxis::setTickLabelSide ( LabelSide side )

Sets whether the tick labels (numbers) shall appear inside or outside the axis rect.

The usual and default setting is lsOutside. Very compact plots sometimes require tick labels to be inside the axis rect, to save space. If side is set to lsInside, the tick labels appear on the inside are additionally clipped to the axis rect.

Definition at line 7850 of file qcustomplot.cpp.

void QCPAxis::setTickLength	(	int	inside,
		int	outside = `0`
	)

Sets the length of the ticks in pixels. inside is the length the ticks will reach inside the plot and outside is the length they will reach outside the plot. If outside is greater than zero, the tick labels and axis label will increase their distance to the axis accordingly, so they won't collide with the ticks.

See also: setSubTickLength, setTickLengthIn, setTickLengthOut

Definition at line 7963 of file qcustomplot.cpp.

void QCPAxis::setTickLengthIn ( int inside )

Sets the length of the inward ticks in pixels. inside is the length the ticks will reach inside the plot.

See also: setTickLengthOut, setTickLength, setSubTickLength

Definition at line 7975 of file qcustomplot.cpp.

void QCPAxis::setTickLengthOut ( int outside )

Sets the length of the outward ticks in pixels. outside is the length the ticks will reach outside the plot. If outside is greater than zero, the tick labels and axis label will increase their distance to the axis accordingly, so they won't collide with the ticks.

See also: setTickLengthIn, setTickLength, setSubTickLength

Definition at line 7990 of file qcustomplot.cpp.

void QCPAxis::setTickPen ( const QPen & pen )

Sets the pen, tick marks will be drawn with.

See also: setTickLength, setBasePen

Definition at line 8074 of file qcustomplot.cpp.

void QCPAxis::setTicks ( bool show )

Sets whether tick marks are displayed.

Note that setting show to false does not imply that tick labels are invisible, too. To achieve that, see setTickLabels.

See also: setSubTicks

Definition at line 7765 of file qcustomplot.cpp.

void QCPAxis::setUpperEnding ( const QCPLineEnding & ending )

Sets the style for the upper axis ending. See the documentation of QCPLineEnding for available styles.

For horizontal axes, this method refers to the right ending, for vertical axes the top ending. Note that this meaning does not change when the axis range is reversed with setRangeReversed.

See also: setLowerEnding

Definition at line 8275 of file qcustomplot.cpp.

void QCPAxis::setupTickVectors ( )

protected

Definition at line 8764 of file qcustomplot.cpp.

int QCPAxis::subTickLengthIn ( ) const

Definition at line 7501 of file qcustomplot.cpp.

int QCPAxis::subTickLengthOut ( ) const

Definition at line 7507 of file qcustomplot.cpp.

QPen QCPAxis::subTickPen ( ) const

inline

Definition at line 2008 of file qcustomplot.h.

bool QCPAxis::subTicks ( ) const

inline

Definition at line 2003 of file qcustomplot.h.

QSharedPointer< QCPAxisTicker > QCPAxis::ticker ( ) const

inline

Returns a modifiable shared pointer to the currently installed axis ticker. The axis ticker is responsible for generating the tick positions and tick labels of this axis. You can access the QCPAxisTicker with this method and modify basic properties such as the approximate tick count (QCPAxisTicker::setTickCount).

You can gain more control over the axis ticks by setting a different QCPAxisTicker subclass, see the documentation there. A new axis ticker can be set with setTicker.

Since the ticker is stored in the axis as a shared pointer, multiple axes may share the same axis ticker simply by passing the same shared pointer to multiple axes.

See also: setTicker

Definition at line 1989 of file qcustomplot.h.

QColor QCPAxis::tickLabelColor ( ) const

inline

Definition at line 1994 of file qcustomplot.h.

QFont QCPAxis::tickLabelFont ( ) const

inline

Definition at line 1993 of file qcustomplot.h.

int QCPAxis::tickLabelPadding ( ) const

Definition at line 7457 of file qcustomplot.cpp.

double QCPAxis::tickLabelRotation ( ) const

Definition at line 7463 of file qcustomplot.cpp.

bool QCPAxis::tickLabels ( ) const

inline

Definition at line 1991 of file qcustomplot.h.

QCPAxis::LabelSide QCPAxis::tickLabelSide ( ) const

Definition at line 7469 of file qcustomplot.cpp.

int QCPAxis::tickLengthIn ( ) const

Definition at line 7489 of file qcustomplot.cpp.

int QCPAxis::tickLengthOut ( ) const

Definition at line 7495 of file qcustomplot.cpp.

QPen QCPAxis::tickPen ( ) const

inline

Definition at line 2007 of file qcustomplot.h.

bool QCPAxis::ticks ( ) const

inline

Definition at line 1990 of file qcustomplot.h.

QVector<double> QCPAxis::tickVector ( ) const

inline

Definition at line 1999 of file qcustomplot.h.

QVector<QString> QCPAxis::tickVectorLabels ( ) const

inline

Definition at line 2000 of file qcustomplot.h.

QCPLineEnding QCPAxis::upperEnding ( ) const

Definition at line 7531 of file qcustomplot.cpp.

Friends And Related Function Documentation

friend class QCPAxisRect

friend

Definition at line 2176 of file qcustomplot.h.

friend class QCPGrid

friend

Definition at line 2175 of file qcustomplot.h.

friend class QCustomPlot

friend

Definition at line 2174 of file qcustomplot.h.

Member Data Documentation

QCPAxisPainterPrivate* QCPAxis::mAxisPainter

protected

Definition at line 2142 of file qcustomplot.h.

QCPAxisRect* QCPAxis::mAxisRect

protected

Definition at line 2107 of file qcustomplot.h.

AxisType QCPAxis::mAxisType

protected

Definition at line 2106 of file qcustomplot.h.

QPen QCPAxis::mBasePen

protected

Definition at line 2112 of file qcustomplot.h.

int QCPAxis::mCachedMargin

protected

Definition at line 2148 of file qcustomplot.h.

bool QCPAxis::mCachedMarginValid

protected

Definition at line 2147 of file qcustomplot.h.

QCPGrid* QCPAxis::mGrid

protected

Definition at line 2141 of file qcustomplot.h.

QString QCPAxis::mLabel

protected

Definition at line 2116 of file qcustomplot.h.

QColor QCPAxis::mLabelColor

protected

Definition at line 2118 of file qcustomplot.h.

QFont QCPAxis::mLabelFont

protected

Definition at line 2117 of file qcustomplot.h.

bool QCPAxis::mNumberBeautifulPowers

protected

Definition at line 2127 of file qcustomplot.h.

QLatin1Char QCPAxis::mNumberFormatChar

protected

Definition at line 2126 of file qcustomplot.h.

int QCPAxis::mNumberPrecision

protected

Definition at line 2125 of file qcustomplot.h.

Qt::Orientation QCPAxis::mOrientation

protected

Definition at line 2110 of file qcustomplot.h.

int QCPAxis::mPadding

protected

Definition at line 2109 of file qcustomplot.h.

QCPRange QCPAxis::mRange

protected

Definition at line 2136 of file qcustomplot.h.

bool QCPAxis::mRangeReversed

protected

Definition at line 2137 of file qcustomplot.h.

ScaleType QCPAxis::mScaleType

protected

Definition at line 2138 of file qcustomplot.h.

SelectableParts QCPAxis::mSelectableParts

protected

Definition at line 2111 of file qcustomplot.h.

QPen QCPAxis::mSelectedBasePen

protected

Definition at line 2112 of file qcustomplot.h.

QColor QCPAxis::mSelectedLabelColor

protected

Definition at line 2118 of file qcustomplot.h.

QFont QCPAxis::mSelectedLabelFont

protected

Definition at line 2117 of file qcustomplot.h.

SelectableParts QCPAxis::mSelectedParts

protected

Definition at line 2111 of file qcustomplot.h.

QPen QCPAxis::mSelectedSubTickPen

protected

Definition at line 2134 of file qcustomplot.h.

QColor QCPAxis::mSelectedTickLabelColor

protected

Definition at line 2124 of file qcustomplot.h.

QFont QCPAxis::mSelectedTickLabelFont

protected

Definition at line 2123 of file qcustomplot.h.

QPen QCPAxis::mSelectedTickPen

protected

Definition at line 2133 of file qcustomplot.h.

QPen QCPAxis::mSubTickPen

protected

Definition at line 2134 of file qcustomplot.h.

bool QCPAxis::mSubTicks

protected

Definition at line 2131 of file qcustomplot.h.

QVector<double> QCPAxis::mSubTickVector

protected

Definition at line 2146 of file qcustomplot.h.

QSharedPointer<QCPAxisTicker> QCPAxis::mTicker

protected

Definition at line 2143 of file qcustomplot.h.

QColor QCPAxis::mTickLabelColor

protected

Definition at line 2124 of file qcustomplot.h.

QFont QCPAxis::mTickLabelFont

protected

Definition at line 2123 of file qcustomplot.h.

bool QCPAxis::mTickLabels

protected

Definition at line 2121 of file qcustomplot.h.

QPen QCPAxis::mTickPen

protected

Definition at line 2133 of file qcustomplot.h.

bool QCPAxis::mTicks

protected

Definition at line 2130 of file qcustomplot.h.

QVector<double> QCPAxis::mTickVector

protected

Definition at line 2144 of file qcustomplot.h.

QVector<QString> QCPAxis::mTickVectorLabels

protected

Definition at line 2145 of file qcustomplot.h.

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

Workflow/GRAPHICS/qcustomplot.h
Workflow/GRAPHICS/qcustomplot.cpp

Public Types

Signals

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation