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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Import Python library into an Ada package?
Date: Fri, 4 Dec 2020 22:09:46 +0100
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On 2020-12-04 19:32, Björn Lundin wrote:
> Den 2020-12-04 kl. 14:22, skrev Niklas Holsti:
>> If you want to use Graphviz just to draw automatically laid-out 
>> graphs, there is another way, that I have used: make the Ada program 
>> write out the graph definition as a text file in the "dot" language, 
>> and then invoke the "dot" program from Graphviz to lay out and draw 
>> the graph into some graphical format.
> 
> And if you really just want to draw graphs - and can use another tool - 
> gnuplot can be controlled by spawning it and send commands on stdin via 
> pipes.

If you want to build a GUI you can use Cairo. It has all necessary stuff 
for vector graphics. E.g. this one uses GtkAda Cairo bindings:

    http://www.dmitry-kazakov.de/ada/aicwl.htm

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de