On Thu, May 21, 2009 at 3:57 AM, Pablo Angulo <pablo.ang...@uam.es> wrote: > > Hello: > > Correct me if I'm wrong, but there's no way to avoid that an interaction > is rebuilt after any change in the controls. While I've been able to > live with that, I was now working in some examples using persistent data > (code is below), and I'd really love two or three things:
You are correct. Right now one can't do what you want with controls. It would be possible for us to implement it though. How would you like to specify that a control doesn't cause a change? William > > 1) To choose which controls trigger an update and which ones don't > 2) Buttons: very similar to current selectors with the option > buttons=true, the only difference that no one keeps selected after > hitting the button. > 3) (?) Update values of the controls other than the one the user changed > > I find there is room in the interact wiki for some examples using > persistence: "construct bezier curve introducing the points one by one", > "place queens in a board and watch the cells in the board that they > threaten", "play nim against a perfect oponent"... but I'd need at least > number one above. > > I would like to put all the input data, and nothing to happen, and then > the plot would be rebuilt only after the button is hit. Maybe there's a > workaround, but I don't see it. Currently I can only do the following, > which has problems when trying to remove a point, as you will see: > > #Idea: add points to a plot one by one, and they stay in the plot > #you chould also be able to remove them and clear them all > > points=[(0,0)] > curva=plot(sin(x)) > menu=['Restart','Add points','Delete points',] > > @interact > def persistent_example_with_interact( option=selector(menu, > buttons=True), punto=input_box(default=(1,0)) ): > global points > print option > if option=='Restart': > points=[(0,0)] > elif option=='Add points': > points.append(points) > else: > points.remove(points) > print points > plot_points=[point2d(p,pointsize=30,rgbcolor=hue(random())) for p in > points] > show(sum(plot_points),aspect_ratio=1,xmin=-2,xmax=2,ymin=-2,ymax=2) > > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
