Please can anyone tell me whether it is possible to "pipe" or "filter" the output of Free Pascal through ghostscript in order to plot graphs on a laserjet printer ?

I would like a hard-copy equivalent to the graph unit of Borland Pascal.

Any counter suggestions also most welcome.

Thanks in advance.

What my approach would be

- make a unit that converts the graph image of the FPC graph unit to a pnm structure.
- use Cygwin (or their unix counterpart) tools to convert it to a normal graph format, and then have gs print that. (via latex if you have to)

Geoff Bagley wrote

Please can anyone tell me whether it is possible to "pipe" or "filter" the output of Free Pascal through ghostscript in order to plot graphs on a laserjet printer ?

Yes it should.

I would like a hard-copy equivalent to the graph unit of Borland Pascal. Any counter suggestions also most welcome.

See fcl/fpimage/pscanvas.

Michael.