Curve that displays 3D points as dots, where the z coordinate is mapped to a color. More...

#include <qwt_plot_spectrocurve.h>

Inheritance diagram for QwtPlotSpectroCurve:

Classes
class	PrivateData

Public Types
enum	PaintAttribute { ClipPoints = 1 }
	Paint attributes. More...

Public Types inherited from QwtPlotItem
enum	RttiValues { Rtti_PlotItem = 0 , Rtti_PlotGrid , Rtti_PlotScale , Rtti_PlotLegend , Rtti_PlotMarker , Rtti_PlotCurve , Rtti_PlotSpectroCurve , Rtti_PlotIntervalCurve , Rtti_PlotHistogram , Rtti_PlotSpectrogram , Rtti_PlotGraphic , Rtti_PlotTradingCurve , Rtti_PlotBarChart , Rtti_PlotMultiBarChart , Rtti_PlotShape , Rtti_PlotTextLabel , Rtti_PlotZone , Rtti_PlotVectorField , Rtti_PlotUserItem = 1000 }
	Runtime type information. More...

enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	Plot Item Attributes. More...

enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	Plot Item Interests/绘图项关注的事件类型 More...

enum	RenderHint { RenderAntialiased = 0x1 }
	Render hints. More...

Public Member Functions
	QwtPlotSpectroCurve (const QString &title=QString())
	Constructor.

	QwtPlotSpectroCurve (const QwtText &title)
	Constructor.

virtual	~QwtPlotSpectroCurve ()
	Destructor.

virtual int	rtti () const QWT_OVERRIDE

void	setPaintAttribute (PaintAttribute, bool on=true)
	Specify an attribute how to draw the curve.

bool	testPaintAttribute (PaintAttribute) const

void	setSamples (const QVector< QwtPoint3D > &)
	Initialize data with an array of samples.

void	setSamples (QwtSeriesData< QwtPoint3D > *)
	Assign a series of samples.

void	setColorMap (QwtColorMap *)
	Change the color map.

const QwtColorMap *	colorMap () const

void	setColorRange (const QwtInterval &)
	Set the value interval, that corresponds to the color map.

QwtInterval &	colorRange () const

virtual void	drawSeries (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const QWT_OVERRIDE
	Draw a subset of the points.

void	setPenWidth (double)
	Assign a pen width.

double	penWidth () const

Public Member Functions inherited from QwtPlotSeriesItem
	QwtPlotSeriesItem (const QString &title=QString())
	Constructor.

	QwtPlotSeriesItem (const QwtText &title)
	Constructor.

virtual	~QwtPlotSeriesItem ()
	Destructor.

void	setOrientation (Qt::Orientation)
	Set the orientation of the item.

Qt::Orientation	orientation () const

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const QWT_OVERRIDE
	Draw the complete series.

virtual QRectF	boundingRect () const QWT_OVERRIDE

virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &) QWT_OVERRIDE
	Update the item to changes of the axes scale division.

Public Member Functions inherited from QwtPlotItem
	QwtPlotItem ()
	Constructor.

	QwtPlotItem (const QString &title)
	Constructor.

	QwtPlotItem (const QwtText &title)
	Constructor.

virtual	~QwtPlotItem ()
	Destroy the QwtPlotItem.

void	attach (QwtPlot *plot)
	Attach the item to a plot.

void	detach ()
	This method detaches a QwtPlotItem from any QwtPlot it has been associated with.

QwtPlot *	plot () const
	Return attached plot.

void	setTitle (const QString &title)
	Set a new title.

void	setTitle (const QwtText &title)
	Set a new title.

const QwtText &	title () const

void	setItemAttribute (ItemAttribute, bool on=true)
	Toggle an item attribute.

bool	testItemAttribute (ItemAttribute) const
	Test an item attribute.

void	setItemInterest (ItemInterest, bool on=true)
	Toggle an item interest.

bool	testItemInterest (ItemInterest) const
	Test an item interest.

void	setRenderHint (RenderHint, bool on=true)
	Toggle an render hint.

bool	testRenderHint (RenderHint) const
	Test a render hint.

void	setRenderThreadCount (uint numThreads)
	On multi core systems rendering of certain plot item ( f.e QwtPlotRasterItem ) can be done in parallel in several threads.

uint	renderThreadCount () const

void	setLegendIconSize (const QSize &)
	Set the size of the legend icon.

QSize	legendIconSize () const

double	z () const
	Plot items are painted in increasing z-order.

void	setZ (double z)
	Set the z value.

void	show ()
	Show the item.

void	hide ()
	Hide the item.

virtual void	setVisible (bool)
	Show/Hide the item.

bool	isVisible () const

void	setAxes (QwtAxisId xAxis, QwtAxisId yAxis)
	Set X and Y axis.

void	setXAxis (QwtAxisId)
	Set the X axis.

QwtAxisId	xAxis () const
	Return xAxis.

void	setYAxis (QwtAxisId)
	Set the Y axis.

QwtAxisId	yAxis () const
	Return yAxis.

virtual void	itemChanged ()
	Update the legend and call QwtPlot::autoRefresh() for the parent plot.

virtual void	legendChanged ()
	Update the legend of the parent plot.

virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const
	Calculate a hint for the canvas margin.

virtual void	updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
	Update the item to changes of the legend info.

QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the bounding scale rectangle of 2 maps.

QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the bounding paint rectangle of 2 maps.

virtual QList< QwtLegendData >	legendData () const
	Return all information, that is needed to represent the item on the legend.

virtual QwtGraphic	legendIcon (int index, const QSizeF &) const

Public Member Functions inherited from QwtAbstractSeriesStore
virtual	~QwtAbstractSeriesStore ()
	Destructor.

Public Member Functions inherited from QwtSeriesStore< QwtPoint3D >
	QwtSeriesStore ()
	Constructor The store contains no series.

	~QwtSeriesStore ()
	Destructor.

void	setData (QwtSeriesData< QwtPoint3D > *series)
	Assign a series of samples.

QwtSeriesData< QwtPoint3D > *	data ()

const QwtSeriesData< QwtPoint3D > *	data () const

QwtPoint3D	sample (size_t index) const

virtual size_t	dataSize () const QWT_OVERRIDE

virtual QRectF	dataRect () const QWT_OVERRIDE

virtual void	setRectOfInterest (const QRectF &rect) QWT_OVERRIDE
	Set a the "rect of interest" for the series.

QwtSeriesData< QwtPoint3D > *	swapData (QwtSeriesData< QwtPoint3D > *series)
	Replace a series without deleting the previous one.

Protected Member Functions
virtual void	drawDots (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const
	Draw a subset of the points.

Protected Member Functions inherited from QwtPlotSeriesItem
virtual void	dataChanged () QWT_OVERRIDE
	dataChanged() indicates, that the series has been changed.

Protected Member Functions inherited from QwtPlotItem
QwtGraphic	defaultIcon (const QBrush &, const QSizeF &) const
	Return a default icon from a brush.

Detailed Description

Curve that displays 3D points as dots, where the z coordinate is mapped to a color.

Member Enumeration Documentation

◆ PaintAttribute

enum QwtPlotSpectroCurve::PaintAttribute

Paint attributes.

Enumerator
ClipPoints	Clip points outside the canvas rectangle.

Constructor & Destructor Documentation

◆ QwtPlotSpectroCurve() [1/2]

QwtPlotSpectroCurve::QwtPlotSpectroCurve ( const QString & title = QString() )

explicit

Constructor.

Parameters

title Title of the curve

◆ QwtPlotSpectroCurve() [2/2]

QwtPlotSpectroCurve::QwtPlotSpectroCurve ( const QwtText & title )

explicit

Constructor.

Parameters

title Title of the curve

Member Function Documentation

◆ colorMap()

const QwtColorMap * QwtPlotSpectroCurve::colorMap ( ) const

Returns: Color Map used for mapping the intensity values to colors

See also: setColorMap(), setColorRange(), QwtColorMap::color()

◆ colorRange()

QwtInterval & QwtPlotSpectroCurve::colorRange ( ) const

Returns: Value interval, that corresponds to the color map

See also: setColorRange(), setColorMap(), QwtColorMap::color()

◆ drawDots()

void QwtPlotSpectroCurve::drawDots	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	from,
		int	to
	)		const

protectedvirtual

Draw a subset of the points.

Parameters

painter	Painter
xMap	Maps x-values into pixel coordinates.
yMap	Maps y-values into pixel coordinates.
canvasRect	Contents rectangle of the canvas
from	Index of the first sample to be painted
to	Index of the last sample to be painted. If to < 0 the series will be painted to its last sample.

See also: drawSeries()

◆ drawSeries()

void QwtPlotSpectroCurve::drawSeries	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	from,
		int	to
	)		const

virtual

Draw a subset of the points.

Parameters

painter	Painter
xMap	Maps x-values into pixel coordinates.
yMap	Maps y-values into pixel coordinates.
canvasRect	Contents rectangle of the canvas
from	Index of the first sample to be painted
to	Index of the last sample to be painted. If to < 0 the series will be painted to its last sample.

See also: drawDots()

Implements QwtPlotSeriesItem.

◆ penWidth()

double QwtPlotSpectroCurve::penWidth ( ) const

Returns: Pen width used to draw a dot

See also: setPenWidth()

◆ rtti()

int QwtPlotSpectroCurve::rtti ( ) const

virtual

Returns: QwtPlotItem::Rtti_PlotSpectroCurve

Reimplemented from QwtPlotItem.

◆ setColorMap()

void QwtPlotSpectroCurve::setColorMap ( QwtColorMap * colorMap )

Change the color map.

Often it is useful to display the mapping between intensities and colors as an additional plot axis, showing a color bar.

Parameters

colorMap Color Map

See also: colorMap(), setColorRange(), QwtColorMap::color(), QwtScaleWidget::setColorBarEnabled(), QwtScaleWidget::setColorMap()

◆ setColorRange()

void QwtPlotSpectroCurve::setColorRange ( const QwtInterval & interval )

Set the value interval, that corresponds to the color map.

Parameters

interval interval.minValue() corresponds to 0.0, interval.maxValue() to 1.0 on the color map.

See also: colorRange(), setColorMap(), QwtColorMap::color()

◆ setPaintAttribute()

void QwtPlotSpectroCurve::setPaintAttribute	(	PaintAttribute	attribute,
		bool	on = `true`
	)

Specify an attribute how to draw the curve.

Parameters

attribute	Paint attribute
on	On/Off /sa PaintAttribute, testPaintAttribute()

◆ setPenWidth()

void QwtPlotSpectroCurve::setPenWidth ( double penWidth )

Assign a pen width.

Parameters

penWidth New pen width

See also: penWidth()

◆ setSamples() [1/2]

void QwtPlotSpectroCurve::setSamples ( const QVector< QwtPoint3D > & samples )

Initialize data with an array of samples.

Parameters

samples Vector of points

◆ setSamples() [2/2]

void QwtPlotSpectroCurve::setSamples ( QwtSeriesData< QwtPoint3D > * data )

Assign a series of samples.

setSamples() is just a wrapper for setData() without any additional value - beside that it is easier to find for the developer.

Parameters

data Data

Warning: The item takes ownership of the data object, deleting it when its not used anymore.

◆ testPaintAttribute()

bool QwtPlotSpectroCurve::testPaintAttribute ( PaintAttribute attribute ) const

Returns: True, when attribute is enabled

See also: PaintAttribute, setPaintAttribute()

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

/home/runner/work/QWT/QWT/src/qwt_plot_spectrocurve.h
/home/runner/work/QWT/QWT/src/qwt_plot_spectrocurve.cpp

Classes

Public Types

Public Member Functions

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ PaintAttribute

Constructor & Destructor Documentation

◆ QwtPlotSpectroCurve() [1/2]

◆ QwtPlotSpectroCurve() [2/2]

Member Function Documentation

◆ colorMap()

◆ colorRange()

◆ drawDots()

◆ drawSeries()

◆ penWidth()

◆ rtti()

◆ setColorMap()

◆ setColorRange()

◆ setPaintAttribute()

◆ setPenWidth()

◆ setSamples() [1/2]

◆ setSamples() [2/2]

◆ testPaintAttribute()