#include <qwt_color_map.h>
List of all members.
Additional Inherited Members |
enum | Format {
RGB,
Indexed
} |
Detailed Description
QwtAlphaColorMap variies the alpha value of a color.
Constructor & Destructor Documentation
QwtAlphaColorMap::QwtAlphaColorMap |
( |
const QColor & |
color = QColor(Qt::gray) | ) |
|
Copy constructor
- Parameters:
-
Member Function Documentation
QColor QwtAlphaColorMap::color |
( |
| ) |
const |
Assignment operator
- Parameters:
-
- Returns:
- *this
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.
void QwtAlphaColorMap::setColor |
( |
const QColor & |
color | ) |
|
Set the color
- Parameters:
-
- See also:
- color()