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plhlsrgb: Convert HLS color to RGB
DESCRIPTION:
This function is used in example 2.
SYNOPSIS:
plhlsrgb(h, l, s, p_r, p_g, p_b)
ARGUMENTS:
h (PLFLT, input) : Hue, in degrees on the colour cone (0.0-360.0)
l (PLFLT, input) : Lightness, expressed as a fraction of the axis
of the colour cone (0.0-1.0)
s (PLFLT, input) : Saturation, expressed as a fraction of the
radius of the colour cone (0.0-1.0)
p_r (PLFLT *, output) : Pointer to red intensity (0.0-1.0) of the
colour
p_g (PLFLT *, output) : Pointer to green intensity (0.0-1.0) of the
colour
p_b (PLFLT *, output) : Pointer to blue intensity (0.0-1.0) of the
colour
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