SIZEITEM question/proposal

[thomas bonfort]

hi list,

I wonder if the sizeitem element could be used to perform simple
calculation on table values, rather than being limited to preprocessed
values.
this could be used to display population values (e.g.
[population]/1000), or any other relatively trivial calculation on
table attributes.

I'm new to mapserver, but would be happy to contribute to
implementation if this seems to be a good idea.

cheers,
tb