|
Qwt User's Guide 6.0.0
|
QwtAlphaColorMap variies the alpha value of a color. More...
#include <qwt_color_map.h>

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 |
QwtAlphaColorMap variies the alpha value of a color.
| QwtAlphaColorMap::QwtAlphaColorMap | ( | const QColor & | color = QColor( Qt::gray ) | ) |
Constructor
| color | Color of the map |
| QwtAlphaColorMap::~QwtAlphaColorMap | ( | ) | [virtual] |
Destructor.
| QColor QwtAlphaColorMap::color | ( | ) | const |
| 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();
| interval | Range for all values |
| value | Value to map into a rgb value |
Implements QwtColorMap.
| void QwtAlphaColorMap::setColor | ( | const QColor & | color | ) |
1.7.3