qwtalphacolormap(3)
NAME
QwtAlphaColorMap
SYNOPSIS
Inherits QwtColorMap.
Detailed Description
QwtAlphaColorMap variies the alpha value of a color.
- Definition at line 160 of file qwt_color_map.h.
- Public Member Functions
- QwtAlphaColorMap (const QColor &=QColor(Qt::gray))
QwtAlphaColorMap (const QwtAlphaColorMap &)
virtual ~QwtAlphaColorMap ()
QwtAlphaColorMap & operator= (const QwtAlphaColorMap &) virtual QwtColorMap * copy () const
void setColor (const QColor &)
QColor color () const
virtual QRgb rgb (const QwtDoubleInterval &, double value) const
Constructor & Destructor Documentation
- QwtAlphaColorMap::QwtAlphaColorMap (const QColor & color =
- QColor(Qt::gray))
Constructor - Parameters:
color Color of the map
- Definition at line 409 of file qwt_color_map.cpp.
- Referenced by copy().
- QwtAlphaColorMap::QwtAlphaColorMap (const QwtAlphaColorMap & other)
- Copy constructor
- Parameters:
other Other color map
- Definition at line 421 of file qwt_color_map.cpp.
- QwtAlphaColorMap::~QwtAlphaColorMap () [virtual]
- Destructor.
- Definition at line 429 of file qwt_color_map.cpp.
Member Function Documentation
- QwtAlphaColorMap & QwtAlphaColorMap::operator= (const QwtAlphaColorMap &
- other)
Assignment operator - Parameters:
other Other color map
- Returns:
*this
- Definition at line 439 of file qwt_color_map.cpp.
- References d_data.
- QwtColorMap * QwtAlphaColorMap::copy () const [virtual]
- Clone the color map.
- Implements QwtColorMap.
- Definition at line 448 of file qwt_color_map.cpp.
- References QwtAlphaColorMap().
- void QwtAlphaColorMap::setColor (const QColor & color)
- Set the color
- Parameters:
color Color
- See also:
color()
- Definition at line 462 of file qwt_color_map.cpp.
- QColor QwtAlphaColorMap::color () const
- Returns:
the color
- See also:
setColor()
- Definition at line 472 of file qwt_color_map.cpp.
- QRgb QwtAlphaColorMap::rgb (const QwtDoubleInterval & interval, double
- value) 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.
- Definition at line 486 of file qwt_color_map.cpp.
- References QwtDoubleInterval::minValue(), and
QwtDoubleInterval::width().
Author
- Generated automatically by Doxygen for Qwt User's Guide from the source
code.