Qwt User's Guide 6.0.0
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Curve that displays 3D points as dots, where the z coordinate is mapped to a color. More...
#include <qwt_plot_spectrocurve.h>
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<PaintAttribute> QwtPlotSpectroCurve::PaintAttributes |
Paint attributes.
QwtPlotSpectroCurve::QwtPlotSpectroCurve | ( | const QString & | title = QString::null | ) | [explicit] |
Constructor
title | Title of the curve |
QwtPlotSpectroCurve::QwtPlotSpectroCurve | ( | const QwtText & | title | ) | [explicit] |
Constructor
title | Title of the curve |
QwtPlotSpectroCurve::~QwtPlotSpectroCurve | ( | ) | [virtual] |
Destructor.
const QwtColorMap * QwtPlotSpectroCurve::colorMap | ( | ) | const |
QwtInterval & QwtPlotSpectroCurve::colorRange | ( | ) | const |
void QwtPlotSpectroCurve::drawDots | ( | QPainter * | painter, |
const QwtScaleMap & | xMap, | ||
const QwtScaleMap & | yMap, | ||
const QRectF & | canvasRect, | ||
int | from, | ||
int | to | ||
) | const [protected, virtual] |
Draw a subset of the points
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. |
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
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. |
Implements QwtPlotAbstractSeriesItem.
double QwtPlotSpectroCurve::penWidth | ( | ) | const |
int QwtPlotSpectroCurve::rtti | ( | ) | const [virtual] |
Reimplemented from QwtPlotItem.
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.
colorMap | Color Map |
void QwtPlotSpectroCurve::setColorRange | ( | const QwtInterval & | interval | ) |
Set the value interval, that corresponds to the color map
interval | interval.minValue() corresponds to 0.0, interval.maxValue() to 1.0 on the color map. |
void QwtPlotSpectroCurve::setPaintAttribute | ( | PaintAttribute | attribute, |
bool | on = true |
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) |
Specify an attribute how to draw the curve
attribute | Paint attribute |
on | On/Off /sa PaintAttribute, testPaintAttribute() |
void QwtPlotSpectroCurve::setPenWidth | ( | double | penWidth | ) |
void QwtPlotSpectroCurve::setSamples | ( | const QVector< QwtPoint3D > & | samples | ) |
Initialize data with an array of samples.
samples | Vector of points |
bool QwtPlotSpectroCurve::testPaintAttribute | ( | PaintAttribute | attribute | ) | const |
Return the current paint attributes.