QwtPlotMarker - A class for drawing markers.

       Generated automatically by Doxygen for Qwt User's Guide from the source code.

Version 6.1.4                                    Wed Jan 2 2019                                 QwtPlotMarker(3)

       A class for drawing markers.

       A marker can be a horizontal line, a vertical line, a symbol, a label or any combination of them, which
       can be drawn around a center point inside a bounding rectangle.

       The setSymbol() member assigns a symbol to the marker. The symbol is drawn at the specified point.

       With setLabel(), a label can be assigned to the marker. The setLabelAlignment() member specifies where
       the label is drawn. All the Align*-constants in Qt::AlignmentFlags (see Qt documentation) are valid. The
       interpretation of the alignment depends on the marker's line style. The alignment refers to the center
       point of the marker, which means, for example, that the label would be printed left above the center
       point if the alignment was set to Qt::AlignLeft | Qt::AlignTop.

       Note:QwtPlotTextLabel is intended to align a text label according to the geometry of canvas ( unrelated to
           plot coordinates )

enumQwtPlotMarker::LineStyle
       Line styles.

       Seealso:setLineStyle(), lineStyle()EnumeratorNoLine No line.

       HLine  A horizontal line.

       VLine  A vertical line.

       Cross  A crosshair.

QRectFQwtPlotMarker::boundingRect()const[virtual]Returns:
           An invalid bounding rect: QRectF(1.0, 1.0, -2.0, -2.0)

       Note:
           A width or height < 0.0 is ignored by the autoscaler

       Reimplemented from QwtPlotItem.

   voidQwtPlotMarker::draw(QPainter*painter,constQwtScaleMap&xMap,constQwtScaleMap&yMap,constQRectF&canvasRect)const[virtual]
       Draw the marker

       Parameters:painter Painter
           xMap x Scale Map
           yMap y Scale Map
           canvasRect Contents rectangle of the canvas in painter coordinates

       Implements QwtPlotItem.

   voidQwtPlotMarker::drawLabel(QPainter*painter,constQRectF&canvasRect,constQPointF&pos)const[protected],[virtual]
       Align and draw the text label of the marker

       Parameters:painter Painter
           canvasRect Contents rectangle of the canvas in painter coordinates
           pos Position of the marker, translated into widget coordinates

       Seealso:drawLabel(), QwtSymbol::drawSymbol()voidQwtPlotMarker::drawLines(QPainter*painter,constQRectF&canvasRect,constQPointF&pos)const[protected],[virtual]
       Draw the lines marker

       Parameters:painter Painter
           canvasRect Contents rectangle of the canvas in painter coordinates
           pos Position of the marker, translated into widget coordinates

       Seealso:drawLabel(), QwtSymbol::drawSymbol()QwtTextQwtPlotMarker::label()constReturns:
           the label

       Seealso:setLabel()Qt::AlignmentQwtPlotMarker::labelAlignment()constReturns:
           the label alignment

       Seealso:setLabelAlignment(), setLabelOrientation()Qt::OrientationQwtPlotMarker::labelOrientation()constReturns:
           the label orientation

       Seealso:setLabelOrientation(), labelAlignment()QwtGraphicQwtPlotMarker::legendIcon(intindex,constQSizeF&size)const[virtual]Returns:
           Icon representing the marker on the legend

       Parameters:index Index of the legend entry ( usually there is only one )
           size Icon size

       Seealso:setLegendIconSize(), legendData()

       Reimplemented from QwtPlotItem.

   constQPen&QwtPlotMarker::linePen()constReturns:
           the line pen

       Seealso:setLinePen()QwtPlotMarker::LineStyleQwtPlotMarker::lineStyle()constReturns:
           the line style

       Seealso:setLineStyle()intQwtPlotMarker::rtti()const[virtual]Returns:QwtPlotItem::Rtti_PlotMarker

       Reimplemented from QwtPlotItem.

   voidQwtPlotMarker::setLabel(constQwtText&label)
       Set the label.

       Parameters:label Label text

       Seealso:label()voidQwtPlotMarker::setLabelAlignment(Qt::Alignmentalign)
       Set the alignment of the label. In case of QwtPlotMarker::HLine  the  alignment  is  relative  to  the  y
       position  of  the  marker,  but  the  horizontal  flags  correspond  to  the canvas rectangle. In case of
       QwtPlotMarker::VLine the alignment is relative to the x position of the marker, but  the  vertical  flags
       correspond to the canvas rectangle.

       In all other styles the alignment is relative to the marker's position.

       Parameters:align Alignment.

       Seealso:labelAlignment(), labelOrientation()voidQwtPlotMarker::setLabelOrientation(Qt::Orientationorientation)
       Set the orientation of the label. When orientation is Qt::Vertical the label is rotated by 90.0 degrees (
       from bottom to top ).

       Parameters:orientation Orientation of the label

       Seealso:labelOrientation(), setLabelAlignment()voidQwtPlotMarker::setLinePen(constQColor&color,qrealwidth=0.0,Qt::PenStylestyle=Qt::SolidLine)
       Build and assign a line pen

       In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() ).
       This method has been introduced to hide this incompatibility.

       Parameters:color Pen color
           width Pen width
           style Pen style

       Seealso:
           pen(), brush()

   voidQwtPlotMarker::setLinePen(constQPen&pen)
       Specify a pen for the line.

       Parameters:pen New pen

       Seealso:linePen()voidQwtPlotMarker::setLineStyle(LineStylestyle)
       Set the line style.

       Parameters:style Line style.

       Seealso:lineStyle()voidQwtPlotMarker::setSpacing(intspacing)
       Set  the  spacing.  When  the  label  is not centered on the marker position, the spacing is the distance
       between the position and the label.

       Parameters:spacing Spacing

       Seealso:spacing(), setLabelAlignment()voidQwtPlotMarker::setSymbol(constQwtSymbol*symbol)
       Assign a symbol.

       Parameters:symbol New symbol

       Seealso:symbol()intQwtPlotMarker::spacing()constReturns:
           the spacing

       Seealso:setSpacing()constQwtSymbol*QwtPlotMarker::symbol()constReturns:
           the symbol

       Seealso:setSymbol(), QwtSymbol

       QwtPlotMarker - A class for drawing markers.

       #include <qwt_plot_marker.h>

       Inherits QwtPlotItem.

   PublicTypes
       enum LineStyle { NoLine, HLine, VLine, Cross }

   PublicMemberFunctionsQwtPlotMarker (const QString &title=QString())
           Sets alignment to Qt::AlignCenter, and style to QwtPlotMarker::NoLine.
       QwtPlotMarker (const QwtText &title)
           Sets alignment to Qt::AlignCenter, and style to QwtPlotMarker::NoLine.
       virtual ~QwtPlotMarker ()
           Destructor.
       virtual int rtti () const
       double xValue () const
           Return x Value.
       double yValue () const
           Return y Value.
       QPointF value () const
           Return Value.
       void setXValue (double)
           Set X Value.
       void setYValue (double)
           Set Y Value.
       void setValue (double, double)
           Set Value.
       void setValue (const QPointF &)
           Set Value.
       void setLineStyle (LineStyle)
           Set the line style.
       LineStylelineStyle () const
       void setLinePen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
       void setLinePen (const QPen &)
       const QPen & linePen () const
       void setSymbol (const QwtSymbol *)
           Assign a symbol.
       const QwtSymbol * symbol () const
       void setLabel (const QwtText &)
           Set the label.
       QwtTextlabel () const
       void setLabelAlignment (Qt::Alignment)
           Set the alignment of the label.
       Qt::Alignment labelAlignment () const
       void setLabelOrientation (Qt::Orientation)
           Set the orientation of the label.
       Qt::Orientation labelOrientation () const
       void setSpacing (int)
           Set the spacing.
       int spacing () const
       virtual void draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &) const
       virtual QRectF boundingRect () const
       virtual QwtGraphiclegendIcon (int index, const QSizeF &) const

   ProtectedMemberFunctions
       virtual void drawLines (QPainter *, const QRectF &, const QPointF &) const
       virtual void drawLabel (QPainter *, const QRectF &, const QPointF &) const