Qwt User's Guide 6.0.0
Public Types | Public Member Functions | Protected Member Functions

QwtPlotSpectroCurve Class Reference

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:
Inheritance graph
[legend]

List of all members.

Public Types

enum  PaintAttribute { ClipPoints = 1 }
typedef QFlags< PaintAttributePaintAttributes

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 QwtColorMapcolorMap () const
void setColorRange (const QwtInterval &)
QwtIntervalcolorRange () 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

Detailed Description

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


Member Typedef Documentation

Paint attributes.


Member Enumeration Documentation

Paint attributes.

Enumerator:
ClipPoints 

Clip points outside the canvas rectangle.


Constructor & Destructor Documentation

QwtPlotSpectroCurve::QwtPlotSpectroCurve ( const QString &  title = QString::null) [explicit]

Constructor

Parameters:
titleTitle of the curve
QwtPlotSpectroCurve::QwtPlotSpectroCurve ( const QwtText title) [explicit]

Constructor

Parameters:
titleTitle of the curve
QwtPlotSpectroCurve::~QwtPlotSpectroCurve ( ) [virtual]

Destructor.


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()
QwtInterval & QwtPlotSpectroCurve::colorRange ( ) const
Returns:
Value interval, that corresponds to the color map
See also:
setColorRange(), setColorMap(), QwtColorMap::color()
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:
painterPainter
xMapMaps x-values into pixel coordinates.
yMapMaps y-values into pixel coordinates.
canvasRectContents rect of the canvas
fromIndex of the first sample to be painted
toIndex 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 QwtScaleMap xMap,
const QwtScaleMap yMap,
const QRectF &  canvasRect,
int  from,
int  to 
) const [virtual]

Draw a subset of the points

Parameters:
painterPainter
xMapMaps x-values into pixel coordinates.
yMapMaps y-values into pixel coordinates.
canvasRectContents rect of the canvas
fromIndex of the first sample to be painted
toIndex 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
Returns:
Pen width used to draw a dot
See also:
setPenWidth()
int QwtPlotSpectroCurve::rtti ( ) const [virtual]
Returns:
QwtPlotItem::Rtti_PlotSpectroCurve

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.

Parameters:
colorMapColor Map
See also:
colorMap(), setColorRange(), QwtColorMap::color(), QwtScaleWidget::setColorBarEnabled(), QwtScaleWidget::setColorMap()
void QwtPlotSpectroCurve::setColorRange ( const QwtInterval interval)

Set the value interval, that corresponds to the color map

Parameters:
intervalinterval.minValue() corresponds to 0.0, interval.maxValue() to 1.0 on the color map.
See also:
colorRange(), setColorMap(), QwtColorMap::color()
void QwtPlotSpectroCurve::setPaintAttribute ( PaintAttribute  attribute,
bool  on = true 
)

Specify an attribute how to draw the curve

Parameters:
attributePaint attribute
onOn/Off /sa PaintAttribute, testPaintAttribute()
void QwtPlotSpectroCurve::setPenWidth ( double  penWidth)

Assign a pen width

Parameters:
penWidthNew pen width
See also:
penWidth()
void QwtPlotSpectroCurve::setSamples ( const QVector< QwtPoint3D > &  samples)

Initialize data with an array of samples.

Parameters:
samplesVector of points
bool QwtPlotSpectroCurve::testPaintAttribute ( PaintAttribute  attribute) const

Return the current paint attributes.

See also:
PaintAttribute, setPaintAttribute()