Area chart

[mark goldin]

Can a chart like this be done?


|-------'---------'-----------------
|          '           '                    |
|           '           '                   |
|            '           '                  |
|Series1 ' Ser.2 '  Ser.3      |
|              '           '                |
|               '           '               |
|                '           '              |
|                 '           '             |
---------------'---------'----------

Number of series might vary, so their width, but lines between series are
always parallel.

Thanks