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

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).

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

       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.

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

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

                                                   July, 2025                                  PLGCOL0A(3plplot)

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