On Apr 30, 12:05 am, Rado <rki...@gmail.com> wrote: > I decided to see how hard it > would be to implement that.
Hi Rado, Very nice! This is a Beautiful Thing. ;-) I've built a couple of programs in the past that would link a graph editor to computational routines to allow one to experiment with changing a graph and instantly learning how certain parameters or properties would react. It'd be great to see something like this in Sage, so off and on I've been giving it some thought. Would something like the following be possible? sage: g = graph_editor() would pop up a graph editing area like you have built, and any changes made in the editing area would be reflected in the Graph object g for the lifetime of the editing area. So for example, one could edit the visual representation and then subsequently execute sage: g.is_eulerian() to obtain the property of the updated version of g. Eventually, something like this could be packaged up into an @interact, which I think would be an extremely useful tool for both teaching and research. Some user-interface ideas: 1. Is it possible to add a right-click context-menu to vertices? You can pack a lot of infrequently-used commands there: delete, color, weight, label, etc. 2. I like to make new vertices by clicking on "empty" space (or not too close to any existing vertices). 3. To handle edges, I'd use a click on one vertex to highlight it (like you have used red coloring, but I'd change the shape to a slightly larger "target" shape, since I wanted to allow for coloring of vertices). Then a second click on a subsequent vertex would add/ remove the edge (ie toggle) and clear the highlight. I've got a few items at the top of my Sage to-do list at the moment, but I'd be interested in working with anybody who wants to carry this idea forward. Rob --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
