QwtSaturationValueColorMap(3)  Qwt User's Guide  QwtSaturationValueColorMap(3)

NAME
       QwtSaturationValueColorMap - QwtSaturationValueColorMap varies the
       saturation and/or value for a given hue in the HSV color model.


SYNOPSIS
       #include <qwt_color_map.h>

       Inherits QwtColorMap.

   Public Member Functions
       QwtSaturationValueColorMap ()
           Constructor.
       virtual ~QwtSaturationValueColorMap ()
           Destructor.
       void setHue (int hue)
           Set the the hue coordinate.
       void setSaturationInterval (int sat1, int sat2)
           Set the interval for the saturation coordinate.
       void setValueInterval (int value1, int value2)
           Set the interval for the value coordinate.
       void setAlpha (int alpha)
           Set the the alpha coordinate.
       int hue () const
       int saturation1 () const
       int saturation2 () const
       int value1 () const
       int value2 () const
       int alpha () const
       virtual QRgb rgb (const QwtInterval &, double value) const override

   Additional Inherited Members

Detailed Description
       QwtSaturationValueColorMap varies the saturation and/or value for a
       given hue in the HSV color model.

       Value and saturation are in the range of 0 to 255 while hue is in the
       range of 0 to 259.

       See also
           QwtHueColorMap

       Definition at line 214 of file qwt_color_map.h.

Constructor & Destructor Documentation
   QwtSaturationValueColorMap::QwtSaturationValueColorMap ()
       Constructor. The value interval is initialized by 0 to 255, saturation
       by 255 to 255. Hue to 0 and alpha to 255.

       So the default setting interpolates the value coordinate only.

       See also
           setHueInterval(), setSaturation(), setValue(), setValue()

       Definition at line 972 of file qwt_color_map.cpp.

Member Function Documentation
   int QwtSaturationValueColorMap::alpha () const
       Returns
           Alpha coordinate

       See also
           setAlpha()

       Definition at line 1127 of file qwt_color_map.cpp.

   int QwtSaturationValueColorMap::hue () const
       Returns
           Hue coordinate

       See also
           setHue()

       Definition at line 1082 of file qwt_color_map.cpp.

   QRgb QwtSaturationValueColorMap::rgb (const QwtInterval & interval, double
       value) const [override],  [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 1140 of file qwt_color_map.cpp.

   int QwtSaturationValueColorMap::saturation1 () const
       Returns
           First saturation coordinate

       See also
           setSaturationInterval()

       Definition at line 1091 of file qwt_color_map.cpp.

   int QwtSaturationValueColorMap::saturation2 () const
       Returns
           Second saturation coordinate

       See also
           setSaturationInterval()

       Definition at line 1100 of file qwt_color_map.cpp.

   void QwtSaturationValueColorMap::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 1067 of file qwt_color_map.cpp.

   void QwtSaturationValueColorMap::setHue (int hue)
       Set the the hue coordinate. Hue coordinates outside 0 to 359 will be
       interpreted as hue % 360..

       Parameters
           hue Hue coordinate

       See also
           hue()

       Definition at line 992 of file qwt_color_map.cpp.

   void QwtSaturationValueColorMap::setSaturationInterval (int saturation1,
       int saturation2)
       Set the interval for the saturation coordinate. When saturation1 ==
       saturation2 the map interpolates between the value coordinates only

       saturation1/saturation2 need to be in the range 0 to 255.

       Parameters
           saturation1 First saturation
           saturation2 Second saturation

       See also
           saturation1(), saturation2(), setValueInterval()

       Definition at line 1016 of file qwt_color_map.cpp.

   void QwtSaturationValueColorMap::setValueInterval (int value1, int value2)
       Set the interval for the value coordinate. When value1 == value2 the
       map interpolates between the saturation coordinates only.

       value1/value2 need to be in the range 0 to 255.

       Parameters
           value1 First value
           value2 Second value

       See also
           value1(), value2(), setSaturationInterval()

       Definition at line 1043 of file qwt_color_map.cpp.

   int QwtSaturationValueColorMap::value1 () const
       Returns
           First value coordinate

       See also
           setValueInterval()

       Definition at line 1109 of file qwt_color_map.cpp.

   int QwtSaturationValueColorMap::value2 () const
       Returns
           Second value coordinate

       See also
           setValueInterval()

       Definition at line 1118 of file qwt_color_map.cpp.


Author
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Version 6.2.0                   Sun Jul 18 2021  QwtSaturationValueColorMap(3)