plrgbhls(3plplot) debian man page | unix.com

PLRGBHLS(3plplot)						    PLplot API							 PLRGBHLS(3plplot)

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
       Geoffrey  Furnish  and  Maurice LeBrun wrote and maintain PLplot.  This man page was automatically generated from the DocBook source of the
       PLplot documentation, maintained by Alan W. Irwin and Rafael Laboissiere.

SEE ALSO
       PLplot documentation at http://plplot.sourceforge.net/resources.

								   August, 2012 						 PLRGBHLS(3plplot)