.TH HLSRGB 3NCARG "March 1993" UNIX "NCAR GRAPHICS"
.na
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.SH NAME
HLSRGB - Converts a color specification given as Hue,
Lightness, and Saturation (HLS) values to Red, Green, and Blue
(RGB) intensity values.
.SH SYNOPSIS
CALL HLSRGB ( H, L, S, R, G, B )
.SH C-BINDING SYNOPSIS
#include <ncarg/ncargC.h>
.sp
void c_hlsrgb (float h, float l, float s, float *r, 
.br
float *g, float *b)
.SH DESCRIPTION 
.IP H 12
(REAL, input, range [0.,360.) ) represents
the hue of the input color in HLS color space. H=0.
corresponds to blue.
.IP L 12
(REAL, input, range [0.,100.]) 
represents
the lightness value of the input color in HLS color
space.  Lightness is a measure of the quantity of light
- a lightness of 0. is black, and a lightness of 100.
gives white. The pure hues occur at lightness value
50.
.IP S 12
(REAL, input, range [0.,100.]) 
represents
the saturation value of the input color in HLS color
space.  Saturation is a measure of how much white light
is mixed with the color. Colors having a saturation
value of 0. represent grays with a gray intensity value
equal to the lightness L.  Colors with a saturation
value of 100. are fully saturated colors. The hue is
undefined when S=0.  The fully saturated pure hues
occur when S=100.  and L=50.
.IP R 12
(REAL, output, range [0.,1.]) 
represents
the red intensity component of the output color in RGB
color space.
.IP G 12
(REAL, output, range [0.,1.]) 
represents
the green intensity component of the output color in
RGB color space.
.IP B 12
(REAL, output, range [0.,1.]) 
represents
the blue intensity component of the output color in RGB
color space.
.SH C-BINDING DESCRIPTION
The C-binding argument descriptions are the same as the FORTRAN 
argument descriptions.
.SH EXAMPLES
Use the ncargex command to see the following relevant
examples: 
ccpcldm,
ccplbam,
ccpllb,
ccplll,
ccpllw,
colcon,
fcce02.
.SH ACCESS
To use HLSRGB or c_hlsrgb, load the NCAR Graphics libraries ncarg, ncarg_gks,
and ncarg_c, preferably in that order.  
.SH MESSAGES
See the colconv man page for a description of all Colconv error
messages and/or informational messages.
.SH SEE ALSO
Online:
colconv,
hlsrgb,
hsvrgb,
rgbhls,
rgbhsv,
rgbyiq,
yiqrgb,
ncarg_cbind.
.sp
Hardcopy:
NCAR Graphics Fundamentals, UNIX Version
.SH COPYRIGHT
Copyright (C) 1987-2009
.br
University Corporation for Atmospheric Research
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The use of this Software is governed by a License Agreement.
