NAME

       plrgbhls - Convert RGB color to HLS

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) Perl/PDL: Not available?
       Implemented as plrgb/plrgb1?

       This function is used in example 2.

ARGUMENTS

       r (PLFLT, input)
              Red intensity (0.0-1.0) of the colour

       g (PLFLT, input)
              Green intensity (0.0-1.0) of the colour

       b (PLFLT, input)
              Blue intensity (0.0-1.0) of the colour

       p_h (PLFLT *, output)
              Pointer to hue, in degrees on the colour cone (0.0-360.0)

       p_l (PLFLT *, output)
              Pointer to lightness, expressed as a fraction  of  the  axis  of  the  colour  cone
              (0.0-1.0)

       p_s (PLFLT *, output)
              Pointer  to  saturation,  expressed  as a fraction of the radius of the colour cone
              (0.0-1.0)

AUTHORS

       Many developers  (who  are  credited  at  http://plplot.sourceforge.net/credits.php)  have
       contributed to PLplot over its long history.

SEE ALSO

       PLplot documentation at http://plplot.sourceforge.net/documentation.php.

                                          February, 2014                        PLRGBHLS(3plplot)