QwtAlphaColorMap(3) | Qwt User's Guide | QwtAlphaColorMap(3) |
NAME
QwtAlphaColorMap - QwtAlphaColorMap varies 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 ()
Destructor. void setColor (const QColor &)
QColor color () const
virtual QRgb rgb (const QwtInterval &, double value) const
Map a value of a given interval into a alpha value.
Additional Inherited Members
Detailed Description
QwtAlphaColorMap varies the alpha value of a color.
Constructor & Destructor Documentation
QwtAlphaColorMap::QwtAlphaColorMap (const QColor & color = QColor( Qt::gray ))
Constructor
Parameters:
Member Function Documentation
QColor QwtAlphaColorMap::color () const
Returns:
See also:
QRgb QwtAlphaColorMap::rgb (const QwtInterval & interval, double value) const [virtual]
Map a value of a given interval into a alpha value. alpha := (value - interval.minValue()) / interval.width();
Parameters:
value Value to map into a RGB value
Returns:
Implements QwtColorMap.
void QwtAlphaColorMap::setColor (const QColor & color)
Set the color
Parameters:
See also:
Author
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Wed Jan 2 2019 | Version 6.1.4 |