Re: wgnuplot

[Nigel N. <nn...@gm...>]

Hi Petr,

> Gnuplot is not library with an API; instead, you use the gnuplot commands
> and pass them through a pipe - for this, a console app is needed.

A gnuplot session might boil down to this:

  while (!com_line) {
    readline();
    do_line();
  }

Our old wx translation drove gnuplot directly, using wx to handle user
strings and history. For realtime display of sim results, we assemble
gp_input_line programmatically.  So, with no pipe and no readline, a
plotting session becomes a sequence of calls to gnuplot's minimalist
API:

  do_line();

In this sense, we use gnuplot as a high-powered plotting library.
The issue of global variables may still be an... issue?

Nigel