QwtHueColorMap varies the hue value of the HSV color model. More...
#include <qwt_color_map.h>
Classes | |
| class | PrivateData |
Public Member Functions | |
| int | alpha () const |
| int | hue1 () const |
| int | hue2 () const |
| QwtHueColorMap (QwtColorMap::Format=QwtColorMap::RGB) | |
| Constructor. | |
| virtual QRgb | rgb (const QwtInterval &, double value) const |
| int | saturation () const |
| void | setAlpha (int alpha) |
| Set the the alpha coordinate. | |
| void | setHueInterval (int hue1, int hue2) |
| void | setSaturation (int saturation) |
| Set the the saturation coordinate. | |
| void | setValue (int value) |
| Set the the value coordinate. | |
| int | value () const |
| virtual | ~QwtHueColorMap () |
| Destructor. | |
Private Attributes | |
| PrivateData * | d_data |
Detailed Description
QwtHueColorMap varies the hue value of the HSV color model.
QwtHueColorMap can be used to set up a color map easily, that runs cyclic over all colors. Each cycle has 360 different steps.
The values for value and saturation are in the range of 0 to 255 and doesn't depend on the data value to be mapped.
- See also:
- QwtSaturationValueColorMap
Definition at line 173 of file qwt_color_map.h.
Constructor & Destructor Documentation
| QwtHueColorMap::QwtHueColorMap | ( | QwtColorMap::Format | format = QwtColorMap::RGB | ) | [explicit] |
Constructor.
The hue interval is initialized by 0 to 359. All other coordinates are set to 255.
- Parameters:
-
format Format of the color map
- See also:
- setHueInterval(), setSaturation(), setValue(), setValue()
Definition at line 768 of file qwt_color_map.cpp.
| QwtHueColorMap::~QwtHueColorMap | ( | ) | [virtual] |
Destructor.
Definition at line 775 of file qwt_color_map.cpp.
Member Function Documentation
| int QwtHueColorMap::alpha | ( | ) | const |
| int QwtHueColorMap::hue1 | ( | ) | const |
- Returns:
- First hue coordinate
- See also:
- setHueInterval()
Definition at line 865 of file qwt_color_map.cpp.
| int QwtHueColorMap::hue2 | ( | ) | const |
- Returns:
- Second hue coordinate
- See also:
- setHueInterval()
Definition at line 874 of file qwt_color_map.cpp.
| QRgb QwtHueColorMap::rgb | ( | const QwtInterval & | interval, |
| double | value | ||
| ) | const [virtual] |
Map a value of a given interval into a RGB value
- Parameters:
-
interval Range for all values value Value to map into a RGB value
- Returns:
- RGB value for value
Implements QwtColorMap.
Definition at line 914 of file qwt_color_map.cpp.
| int QwtHueColorMap::saturation | ( | ) | const |
- Returns:
- Saturation coordinate
- See also:
- setSaturation()
Definition at line 883 of file qwt_color_map.cpp.
| void QwtHueColorMap::setAlpha | ( | int | alpha | ) |
Set the the alpha coordinate.
alpha needs to be in the range 0 to 255, where 255 means opaque and 0 means transparent.
- Parameters:
-
alpha Alpha coordinate
- See also:
- alpha()
Definition at line 850 of file qwt_color_map.cpp.
| void QwtHueColorMap::setHueInterval | ( | int | hue1, |
| int | hue2 | ||
| ) |
Set the interval for the hue coordinate
hue1/hue2 need to be positive number and can be > 360 to define cycles. F.e. 420 to 240 defines a map yellow/red/magenta/blue.
- Parameters:
-
hue1 First hue coordinate hue2 Second hue coordinate
Definition at line 791 of file qwt_color_map.cpp.
| void QwtHueColorMap::setSaturation | ( | int | saturation | ) |
Set the the saturation coordinate.
saturation needs to be in the range 0 to 255,
- Parameters:
-
saturation Saturation coordinate
- See also:
- saturation()
Definition at line 809 of file qwt_color_map.cpp.
| void QwtHueColorMap::setValue | ( | int | value | ) |
Set the the value coordinate.
value needs to be in the range 0 to 255,
- Parameters:
-
value Value coordinate
- See also:
- value()
Definition at line 829 of file qwt_color_map.cpp.
| int QwtHueColorMap::value | ( | ) | const |
Member Data Documentation
PrivateData* QwtHueColorMap::d_data [private] |
Definition at line 193 of file qwt_color_map.h.
The documentation for this class was generated from the following files: