1. Rado Kirov's javascript version to create/manipulate a graph is awesome - that would be an excellent thing to insert into Sage. (says he who doesn't know how to program) - very young students could work with that and then progress up to 'the code'. In fact, just using the page referenced above to create a graph and copy/paste the code into Sage is an excellent use of the tool if the 'look' of the graph is important - much less tedious than entering positions by hand. Although I don't know why it comes out with fairly ugly black lines and vertices if I make it a DiGraph, rather than the Sage default look.
2. The new items you added to the interactive subgraph are MUCH closer to what I am trying to do. Especially the one where they are side by side in the html table. (which was a clever way to add a title, btw) I was trying to add a second 'to_delete' button row (ie. to_delete2) so I could delete more than one vertex but was woefully unsuccessful. Well, I did add the row but I couldn't figure out how to get it to read both bits of info (from to_delete and to_delete2) and graph it correctly. Any thoughts on how I can add the ability to delete more. I want the students to basically create a ripple effect through the web given a set of predefined rules based on weights. So they would delete a vertex and then make a decision on what to delete next (if anything). Also, is there a way to add a 'reset' button to start over without having to go back to the original matrix cell and 'shift-enter' your way back down the page? And is it possible to start with no vertex selected rather than zero automatically going away? I tried 'default=None' but it didn't work. I suppose I could always have one extra number in the range and default select that number but I figure there is probably a way to select nothing at the start and have two identical graphs side by side. Thanks for your help - I am learning a great deal. And I will definitely be introducing Sage to the math department at my high school! Tom On Aug 19, 12:13 am, [email protected] wrote: > docfleetwood wrote: > > Thanks, I have looked at a number of interact examples. > > > I suppose what I should really say is that I still need to figure out > > how to 'program' an interactive that will get the job done. > > Does the examples athttp://sagenb.org/home/pub/733/help more? > > I just noticed that the interact documentation is not in the reference > manual. That's a shame. > > You can read the documentation by doing: > > interact? > > Thanks, > > Jason > > > Although I recall reading in one of these groups that someone was > > working on a java or javascript method to be able to use your mouse > > and simply drag/drop edges or vertices. Does anyone know anything > > about that? > > > Tom > > > On Aug 18, 2:20 am, Rob Beezer <[email protected]> wrote: > > >> On Aug 17, 10:10 pm, docfleetwood <[email protected]> wrote: > > >>> Although I still need to figure out a good interactive mechanism to > >>> delete a vertex and redraw the graph. Hmmmm... > > >> Have you looked at the examples athttp://wiki.sagemath.org/interact? > > >> There you can pretty quickly see the variety of input widgets you can > >> use in an interact. > > >> You could use two text boxes where the students would just input the > >> labels of the two vertices to be deleted, though you'd not get the > >> protection against bogus input that comes free with a slider. > > >> Rob --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en -~----------~----~----~----~------~----~------~--~---
