QwtPlotSpectroCurve(3)         Qwt User's Guide         QwtPlotSpectroCurve(3)

NAME
       QwtPlotSpectroCurve - 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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       code.

Version 6.2.0                   Sun Jul 18 2021         QwtPlotSpectroCurve(3)