NAME

       plgcol0a  -  Returns  8-bit  RGB values and PLFLT alpha transparency value for given color
       index from cmap0

SYNOPSIS

       plgcol0a(icol0, r, g, b, alpha)

DESCRIPTION

       Returns 8-bit RGB values (0-255) and PLFLT alpha transparency value  (0.0-1.0)  for  given
       color  from cmap0 (see the PLplot documentation).  Values are negative if an invalid color
       id is given.

       Redacted form: plgcola(r, g, b)

       This function is used in example 30.

ARGUMENTS

       icol0 (PLINT(3plplot), input)
              Index of desired cmap0 color.

       r (PLINT_NC_SCALAR(3plplot), output)
              Returned value of the red intensity in the range from 0 to 255.

       g (PLINT_NC_SCALAR(3plplot), output)
              Returned value of the green intensity in the range from 0 to 255.

       b (PLINT_NC_SCALAR(3plplot), output)
              Returned value of the blue intensity in the range from 0 to 255.

       alpha (PLFLT_NC_SCALAR(3plplot), output)
              Returned value of the alpha transparency in the range from (0.0-1.0).

AUTHORS

       Many developers (who are credited at http://plplot.org/credits.php)  have  contributed  to
       PLplot over its long history.

SEE ALSO

       PLplot documentation at http://plplot.org/documentation.php.

                                            June, 2022                          PLGCOL0A(3plplot)