Re: make a drawing with Emacs

[Gregory Heytings]

> Anyway, I'd like to make a drawing of it. Any idea what software might 
> be used? Can Emacs do this? Or can you input the data in an Emacs 
> buffer, and have it compile into an image using some 3rd-hand software?
>
> Optimally I'd like to just measure everything, then input the data - 
> perhaps as geometrical figures? (e.g., a tree could be a circle, I input 
> the diameter and relative position...) and then the programs compiles 
> and produce the image ... good idea, right?

I would do that with MetaPost.  It allows you to do exactly what you want: 
input the data in an Emacs buffer (Emacs has a MetaPost mode), as a series 
of geometrical figures and equations, which is compiled into an image.

Gregory