plrgbhls
Convert RGB color to HLS
- Provided by: plplot-doc (Version: 5.15.0+dfsg2-9build1.1)
- Source: plplot
- Report a bug
SYNOPSIS
plrgbhls(r, g, b, p_h, p_l, p_s)
DESCRIPTION
Convert RGB color coordinates to HLS
Redacted form: General: plrgbhls(r, g, b, p_h, p_l, p_s)
This function is used in example 2.
ARGUMENTS
- r (PLFLT(3plplot), input)
- Red intensity (0.0-1.0) of the color.
- g (PLFLT(3plplot), input)
- Green intensity (0.0-1.0) of the color.
- b (PLFLT(3plplot), input)
- Blue intensity (0.0-1.0) of the color.
- p_h (PLFLT_NC_SCALAR(3plplot), output)
- Returned value of the hue in degrees (0.0-360.0) on the color cylinder.
- p_l (PLFLT_NC_SCALAR(3plplot), output)
- Returned value of the lightness expressed as a fraction (0.0-1.0) of the axis of the color cylinder.
- p_s (PLFLT_NC_SCALAR(3plplot), output)
- Returned value of the saturation expressed as a fraction (0.0-1.0) of the radius of the color cylinder.
AUTHORS
Many developers (who are credited at http://plplot.org/credits.php) have contributed to PLplot over its long history.
SEE ALSO
PLplot documentation at http://plplot.org/documentation.php.