From mboxrd@z Thu Jan 1 00:00:00 1970 From: noel.hunt@gmail.com (Noel Hunt) Date: Wed, 16 May 2018 09:12:22 +1000 Subject: [TUHS] Who used *ROFF? In-Reply-To: <201805152305.w4FN5HnZ006290@coolidge.cs.Dartmouth.EDU> References: <201805152305.w4FN5HnZ006290@coolidge.cs.Dartmouth.EDU> Message-ID: I have built ideal several times over the years. I have only tested it on the samples in the manual, in particular the diagram Brian Kernighan used for the 'cbt' documentation. I believe there was one bug, which was found by John Mackin at Sydney University many years ago so the code I have has that documented, well, patched. On Wed, May 16, 2018 at 9:05 AM, Doug McIlroy wrote: > > I still find pic really useful ... > I don't know of any other tool > that lets you do drawings like that > > Unix had "ideal", a remarkable language by Chris Van Wyk, based on complex > numbers and capable of some constraint solving. Its code seemed to be > lost but can now be found in one of the online v10 repositories. I've > been meaning to try to resurrect it. If anyone has already done so, > I'd love to hear about it. > > I, too, have some pic macros, though no big coherent packages, to do > things like polar coordinates and solving for the intersection of lines > and circles. I have even in extremis made filled triangles with scripts > that massage PostScript by deleting corners of filled rectangles. Then > from triangles you can, with patience, make polygons. > > Doug > -------------- next part -------------- An HTML attachment was scrubbed... URL: