Hello Marshall, > I am not aware of anything that Porta could do that cddlib cannot do. > The polyhedra.py package in geometry should be able to do all that. > Please let me know if there is something you want to do that isn't > covered by that.
I mainly wanted to use Porta's "system of ineqalities" <---> "set of vertices of polytopes" conversion tool. I was going to use that functionality to compute the convex hull (and various relaxations) of stable sets of graphs. > Recently Volker Braun did a massive rewrite of polyhedra.py, which > should make it easier to improve and extend and fix some bugs. I am > currently adding some doctests and tweaking a few things to improve > the backwards-compatibility and speed of his implementation; hopefully > that can be finished up fairly soon (i.e. in the next month) and get > into sage-4.2.1 or whatever the next release after that is. That's > being tracked at http://trac.sagemath.org/sage_trac/ticket/7109 if you > are interested. Great! I look forward to news on it's completion. I just signed up to be cc'ed on the Trac ticket. However, for the project I'm working on I need something quick and dirty going right now. (One month is a bit too long.) Porta seems easy to work with so I'll make an interface for myself. If anyone is interested then I'll share with the devel community. -- Chris --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
