Grap – A Language for Typesetting Graphs

I keep hoping someday someone will post what it is that Knuth uses for all of his charting purposes. I have yet to find one of his books where he lacks some really good visualizations in them. Heck, he even has dominoes inline in Concrete Math (well, that book does... could have been one of the other authors). His flowcharts in TAoCP are all very nicely done.<p>Best I have found to date is graphviz.

The original is in Plan 9 and Plan 9 from User Space. <a href="http://swtch.com/usr/local/plan9/src/cmd/grap/" rel="nofollow">http:&#x2F;&#x2F;swtch.com&#x2F;usr&#x2F;local&#x2F;plan9&#x2F;src&#x2F;cmd&#x2F;grap&#x2F;</a>

I&#x27;ve been successfully using Asymptote[1] for this purpose. I find I often have to fight a little to get things how I want, but it works quite well. The biggest benefit to me is being able to replace a dataset and have the graphs regenerate themselves. Grap seems worth exploring as an alternative though.<p>[1] <a href="http://asymptote.sourceforge.net/" rel="nofollow">http:&#x2F;&#x2F;asymptote.sourceforge.net&#x2F;</a>

I remember using grap in the 1980s, when it was first released. I had no idea that people would still be interested in using it today.