1PLGCOLBGA(3plplot)                PLplot API                PLGCOLBGA(3plplot)
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NAME

6       plgcolbga  - Returns the background color (cmap0[0]) by 8-bit RGB value
7       and PLFLT alpha transparency value
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SYNOPSIS

10       plgcolbga(r, g, b, alpha)
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DESCRIPTION

13       Returns the background color (cmap0[0]) by 8-bit RGB  value  and  PLFLT
14       alpha transparency value.
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16       This function is used in example 31.
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ARGUMENTS

19       r (PLINT_NC_SCALAR(3plplot), output)
20              Returned value of the red intensity in the range from 0 to 255.
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22       g (PLINT_NC_SCALAR(3plplot), output)
23              Returned  value  of  the  green intensity in the range from 0 to
24              255.
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26       b (PLINT_NC_SCALAR(3plplot), output)
27              Returned value of the blue intensity in the range from 0 to 255.
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29       alpha (PLFLT_NC_SCALAR(3plplot), output)
30              Returned value of the alpha transparency in the range (0.0-1.0).
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AUTHORS

34       Many   developers   (who   are   credited   at    http://plplot.source‐
35       forge.net/credits.php)  have  contributed  to PLplot over its long his‐
36       tory.
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SEE ALSO

39       PLplot   documentation   at    http://plplot.sourceforge.net/documenta‐
40       tion.php.
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44                                 August, 2017               PLGCOLBGA(3plplot)
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