1PLRGBHLS(3plplot) PLplot API PLRGBHLS(3plplot)
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6 plrgbhls - Convert RGB color to HLS
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9 plrgbhls(r, g, b, p_h, p_l, p_s)
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12 Convert RGB color coordinates to HLS
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14 Redacted form: General: plrgbhls(r, g, b, p_h, p_l, p_s)
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17 This function is used in example 2.
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20 r (PLFLT(3plplot), input)
21 Red intensity (0.0-1.0) of the color.
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23 g (PLFLT(3plplot), input)
24 Green intensity (0.0-1.0) of the color.
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26 b (PLFLT(3plplot), input)
27 Blue intensity (0.0-1.0) of the color.
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29 p_h (PLFLT_NC_SCALAR(3plplot), output)
30 Returned value of the hue in degrees (0.0-360.0) on the color
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33 p_l (PLFLT_NC_SCALAR(3plplot), output)
34 Returned value of the lightness expressed as a fraction
35 (0.0-1.0) of the axis of the color cylinder.
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37 p_s (PLFLT_NC_SCALAR(3plplot), output)
38 Returned value of the saturation expressed as a fraction
39 (0.0-1.0) of the radius of the color cylinder.
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43 Many developers (who are credited at http://plplot.org/credits.php)
44 have contributed to PLplot over its long history.
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47 PLplot documentation at http://plplot.org/documentation.php.
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51 August, 2021 PLRGBHLS(3plplot)