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.