QwtPlotSpectroCurve - Man Page
Curve that displays 3D points as dots, where the z coordinate is mapped to a color.
Synopsis
#include <qwt_plot_spectrocurve.h>
Inherits QwtPlotSeriesItem, and QwtSeriesStore< QwtPoint3D >.
Public Types
enum PaintAttribute { ClipPoints = 1 }
Paint attributes.
typedef QFlags< PaintAttribute > PaintAttributes
Public Member Functions
QwtPlotSpectroCurve (const QString &title=QString())
QwtPlotSpectroCurve (const QwtText &title)
virtual ~QwtPlotSpectroCurve ()
Destructor.
virtual int rtti () const override
void setPaintAttribute (PaintAttribute, bool on=true)
bool testPaintAttribute (PaintAttribute) const
void setSamples (const QVector< QwtPoint3D > &)
void setSamples (QwtSeriesData< 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 override
void setPenWidth (double)
double penWidth () const
Protected Member Functions
virtual void drawDots (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const
Detailed Description
Curve that displays 3D points as dots, where the z coordinate is mapped to a color.
Definition at line 22 of file qwt_plot_spectrocurve.h.
Member Typedef Documentation
typedef QFlags<PaintAttribute > QwtPlotSpectroCurve::PaintAttributes
An ORed combination of PaintAttribute values.
Definition at line 34 of file qwt_plot_spectrocurve.h.
Member Enumeration Documentation
enum QwtPlotSpectroCurve::PaintAttribute
Paint attributes.
Enumerator
- ClipPoints
Clip points outside the canvas rectangle.
Definition at line 28 of file qwt_plot_spectrocurve.h.
Constructor & Destructor Documentation
QwtPlotSpectroCurve::QwtPlotSpectroCurve (const QString & title = QString()) [explicit]
Constructor
- Parameters
title Title of the curve
Definition at line 55 of file qwt_plot_spectrocurve.cpp.
QwtPlotSpectroCurve::QwtPlotSpectroCurve (const QwtText & title) [explicit]
Constructor
- Parameters
title Title of the curve
Definition at line 45 of file qwt_plot_spectrocurve.cpp.
Member Function Documentation
const QwtColorMap * QwtPlotSpectroCurve::colorMap () const
- Returns
Color Map used for mapping the intensity values to colors
- See also
setColorMap(), setColorRange(), QwtColorMap::color()
Definition at line 163 of file qwt_plot_spectrocurve.cpp.
QwtInterval & QwtPlotSpectroCurve::colorRange () const
- Returns
Value interval, that corresponds to the color map
- See also
setColorRange(), setColorMap(), QwtColorMap::color()
Definition at line 191 of file qwt_plot_spectrocurve.cpp.
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
- 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()
Definition at line 270 of file qwt_plot_spectrocurve.cpp.
void QwtPlotSpectroCurve::drawSeries (QPainter * painter, const QwtScaleMap & xMap, const QwtScaleMap & yMap, const QRectF & canvasRect, int from, int to) const [override], [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.
Definition at line 238 of file qwt_plot_spectrocurve.cpp.
double QwtPlotSpectroCurve::penWidth () const
- Returns
Pen width used to draw a dot
- See also
setPenWidth()
Definition at line 220 of file qwt_plot_spectrocurve.cpp.
int QwtPlotSpectroCurve::rtti () const [override], [virtual]
- Returns
QwtPlotItem::Rtti_PlotSpectroCurve
Reimplemented from QwtPlotItem.
Definition at line 82 of file qwt_plot_spectrocurve.cpp.
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()
Definition at line 147 of file qwt_plot_spectrocurve.cpp.
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()
Definition at line 176 of file qwt_plot_spectrocurve.cpp.
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()
Definition at line 94 of file qwt_plot_spectrocurve.cpp.
void QwtPlotSpectroCurve::setPenWidth (double penWidth)
Assign a pen width
- Parameters
penWidth New pen width
- See also
penWidth()
Definition at line 202 of file qwt_plot_spectrocurve.cpp.
void QwtPlotSpectroCurve::setSamples (const QVector< QwtPoint3D > & samples)
Initialize data with an array of samples.
- Parameters
samples Vector of points
Definition at line 115 of file qwt_plot_spectrocurve.cpp.
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.
Definition at line 130 of file qwt_plot_spectrocurve.cpp.
bool QwtPlotSpectroCurve::testPaintAttribute (PaintAttribute attribute) const
- Returns
True, when attribute is enabled
- See also
PaintAttribute, setPaintAttribute()
Definition at line 106 of file qwt_plot_spectrocurve.cpp.
Author
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