NAME

       plgcol0a  -  Returns  8-bit RGB values and double 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 double 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.

       This function is used in example 30.

ARGUMENTS

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

       r (PLINT *, output)
              Pointer to 8-bit red value.

       g (PLINT *, output)
              Pointer to 8-bit green value.

       b (PLINT *, output)
              Pointer to 8-bit blue value.

       alpha (PLFLT *, output)
              Pointer to PLFLT alpha transparency value.

AUTHORS

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

SEE ALSO

       PLplot documentation at http://plplot.sourceforge.net/documentation.php.

                                          February, 2014                        PLGCOL0A(3plplot)