trusty (3) QwtAlphaColorMap.3.gz

NAME

       QwtAlphaColorMap -

       QwtAlphaColorMap variies the alpha value of a color.

SYNOPSIS

       #include <qwt_color_map.h>

       Inherits QwtColorMap.

   Public Member Functions
       QwtAlphaColorMap (const QColor &=QColor(Qt::gray))
       virtual ~QwtAlphaColorMap ()
       void setColor (const QColor &)
       QColor color () const
       virtual QRgb rgb (const QwtInterval &, double value) const

Detailed Description

       QwtAlphaColorMap variies the alpha value of a color.

Constructor & Destructor Documentation

   QwtAlphaColorMap::QwtAlphaColorMap (const QColor &color = QColor( Qt::gray )) Constructor
       Parameters:
           color Color of the map

   QwtAlphaColorMap::~QwtAlphaColorMap () [virtual]
       Destructor.

Member Function Documentation

   QColor QwtAlphaColorMap::color () const Returns:
           the color

       See also:
           setColor()

   QRgb QwtAlphaColorMap::rgb (const QwtInterval &interval, doublevalue) const [virtual]
       Map a value of a given interval into a alpha value. alpha := (value - interval.minValue()) /
       interval.width();

       Parameters:
           interval Range for all values
           value Value to map into a rgb value

       Returns:
           rgb value, with an alpha value

       Implements QwtColorMap.

   void QwtAlphaColorMap::setColor (const QColor &color) Set the color
       Parameters:
           color Color

       See also:
           color()

Author

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