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grapher extensions desired
- To: firstname.lastname@example.org
- Subject: grapher extensions desired
- From: spector@cs.UMD.EDU (Lee Spector)
- Date: Thu, 20 Jun 91 19:22:18 -0400
If anyone has extensions to Examples:grapher.lisp (for MCL 2.0b1p3)
I'd love to see them. Some of the extensions I'd like most:
- vertical mode (graph top to bottom, rather than left to right)
- support for window-hardcopy
- some way to cut and paste as draw-objects into a drawing application
(I won't hold my breath for this one...)
- an easy hook for handling clicks (view-click-event-handler is
commented out - looks like pre-CLOS code...)
- built-in cycle detection; a backwards reference could just be
graphed as a specially marked (bold?) new node with no successors.
- a higher-level interface for frequent applications so you don't
always have to think about node objects.
Perhaps: (graph-tree tree) Example: (graph-tree '(a (b c (d) e)))
and: (graph-atoms atoms links)
Examples: (graph-atoms '(a b c d) '((a b)(b d)(a c)(c d)))
(graph-atoms '(a b) '((a b)(b a))) ;;cycle!
I find a good grapher to be a really useful general tool. Wouldn't
it be nice to include a full-featured graphing package in MCL 2.0-final?
I think Xerox's Interlisp-D had a grapher with these sorts of features
built-in... Anyway, I'd love to see hacks for any of this!
Thanks! -Lee (email@example.com)