QwtPlotSpectroCurve (3)

#include <qwt_plot_spectrocurve.h>

Inherits QwtPlotSeriesItem< QwtPoint3D >.

Public Types

enum PaintAttribute { ClipPoints = 1 }

typedef QFlags< PaintAttribute > PaintAttributes

Public Member Functions

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

QwtPlotSpectroCurve (const QwtText &title)

virtual ~QwtPlotSpectroCurve ()

virtual int rtti () const

void setPaintAttribute (PaintAttribute, bool on=true)

bool testPaintAttribute (PaintAttribute) const

void setSamples (const QVector< QwtPoint3D > &)

void setColorMap (QwtColorMap *)

const QwtColorMap * colorMap () const

void setColorRange (const QwtInterval &)

QwtInterval & colorRange () const

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

void setPenWidth (double width)

double penWidth () const

Protected Member Functions

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

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

typedef QFlags<\fBPaintAttribute\fP> \fBQwtPlotSpectroCurve::PaintAttributes\fP

Paint attributes.

enum \fBQwtPlotSpectroCurve::PaintAttribute\fP

Paint attributes.

Enumerator:

ClipPoints

Clip points outside the canvas rectangle.

QwtPlotSpectroCurve::QwtPlotSpectroCurve (const QString &title = \fCQString::null\fP)\fC [explicit]\fP Constructor

Parameters:

title Title of the curve

QwtPlotSpectroCurve::QwtPlotSpectroCurve (const \fBQwtText\fP &title)\fC [explicit]\fP Constructor

Parameters:

title Title of the curve

QwtPlotSpectroCurve::~QwtPlotSpectroCurve ()\fC [virtual]\fP

Destructor.

const \fBQwtColorMap\fP * QwtPlotSpectroCurve::colorMap () const \fBReturns:\fP

Color Map used for mapping the intensity values to colors

See also:

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

\fBQwtInterval\fP & QwtPlotSpectroCurve::colorRange () const \fBReturns:\fP

Value interval, that corresponds to the color map

See also:

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

void QwtPlotSpectroCurve::drawDots (QPainter *painter, const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRectF &canvasRect, intfrom, intto) const\fC [protected, virtual]\fP 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 rect 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()

void QwtPlotSpectroCurve::drawSeries (QPainter *painter, const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRectF &canvasRect, intfrom, intto) const\fC [virtual]\fP 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 rect 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 QwtPlotAbstractSeriesItem.

double QwtPlotSpectroCurve::penWidth () const \fBReturns:\fP

Pen width used to draw a dot

See also:

setPenWidth()

int QwtPlotSpectroCurve::rtti () const\fC [virtual]\fP \fBReturns:\fP

QwtPlotItem::Rtti_PlotSpectroCurve

Reimplemented from QwtPlotItem.

void QwtPlotSpectroCurve::setColorMap (\fBQwtColorMap\fP *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()

void QwtPlotSpectroCurve::setColorRange (const \fBQwtInterval\fP &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()

void QwtPlotSpectroCurve::setPaintAttribute (\fBPaintAttribute\fPattribute, boolon = \fCtrue\fP) Specify an attribute how to draw the curve

Parameters:

attribute Paint attribute

on On/Off /sa PaintAttribute, testPaintAttribute()

void QwtPlotSpectroCurve::setPenWidth (doublepenWidth) Assign a pen width

Parameters:

penWidth New pen width

See also:

penWidth()

void QwtPlotSpectroCurve::setSamples (const QVector< \fBQwtPoint3D\fP > &samples) Initialize data with an array of samples.

Parameters:

samples Vector of points

bool QwtPlotSpectroCurve::testPaintAttribute (\fBPaintAttribute\fPattribute) const

Return the current paint attributes. See also:

PaintAttribute, setPaintAttribute()

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