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HLSRGB - Converts a color specification given as Hue, Lightness, and Saturation (HLS) values to Red,

Access

       To  use HLSRGB or c_hlsrgb, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in
       that order.

C-Binding Description

       The C-binding argument descriptions are the same as the FORTRAN argument descriptions.

C-Binding Synopsis

       #include <ncarg/ncargC.h>

       void c_hlsrgb (float h, float l, float s, float *r,
       float *g, float *b)

Description

       H           (REAL,  input,  range  [0.,360.)  ) represents the hue of the input color in HLS color space.
                   H=0.  corresponds to blue.

       L           (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.

       S           (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.

       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.

Examples

       Use the ncargex command to see the following relevant examples: ccpcldm, ccplbam, ccpllb, ccplll, ccpllw,
       colcon, fcce02.

Messages

       See the colconv man page for a description of all Colconv error messages and/or informational messages.

Name

       HLSRGB - Converts a color specification given as Hue, Lightness, and Saturation (HLS) values to Red,
       Green, and Blue (RGB) intensity values.

See Also

       Online: colconv, hlsrgb, hsvrgb, rgbhls, rgbhsv, rgbyiq, yiqrgb, ncarg_cbind.

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

Synopsis

       CALL HLSRGB ( H, L, S, R, G, B )

See Also