NAME¶
HSVRGB - Converts a color specification given in the Hue, Saturation, and Value
(HSV) color space to color values in the Red, Green, Blue (RGB) color space.
SYNOPSIS¶
CALL HSVRGB (H, S, V, R, G, B)
C-BINDING SYNOPSIS¶
#include <ncarg/ncargC.h>
void c_hsvrgb (float h, float s, float v, float *r,
float *g, float *b)
DESCRIPTION¶
- H
- (REAL, input, range [0.,360.) ) represents the hue of the input color in
HSV color space.
- S
- (REAL, input, range [0.,1.]) represents the saturation value of the input
color in HSV color space. Saturation is a measure of how much white light
is mixed with the color. Saturation values of 0. represent grays (with a
gray value equal to the value V). Saturation values of 1. are fully
saturated colors. The hue is undefined when S=0. The fully saturated pure
hues occur when S=1. and V=1.
- V
- (REAL, input, range [0.,1.]) represents the value of the input color in
HSV color space.
- R
- (REAL, output, range [0.,1.]) represents the red intensity component of
the output color in RGB color space.
- G
- (REAL, output, range [0.,1.]) represents the green intensity component of
the output color in RGB color space.
- B
- (REAL, output, range [0.,1.]) represents the blue intensity component of
the output color in RGB color space.
C-BINDING DESCRIPTION¶
The C-binding argument descriptions are the same as the FORTRAN argument
descriptions.
EXAMPLES¶
Use the ncargex command to see the following relevant examples: coex03, tcolcv,
fcce02.
ACCESS¶
To use HSVRGB or c_hsvrgb, load the NCAR Graphics libraries ncarg, ncarg_gks,
and ncarg_c, preferably in that order.
MESSAGES¶
See the colconv man page for a description of all Colconv error messages and/or
informational messages.
SEE ALSO¶
Online: colconv, hlsrgb, rgbhls, rgbhsv, rgbyiq, yiqrgb, ncarg_cbind.
Hardcopy: NCAR Graphics Fundamentals, UNIX Version
COPYRIGHT¶
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.