You can create a plot window and use glpaint to update. see the demo deoptim or addon math/deoptim.
On Sun, Aug 11, 2019, 2:52 AM Michal Wallace <michal.wall...@gmail.com> wrote: > Hey all, > > > I'm experimenting with animation in J for a new video... > > > I'm use the wd timer to make an animated plot, and it mostly works, but the > window itself disappears and reappears on every frame, causing an > unwatchable flicker effect. > > > How can I keep the plot window from flickering, or pipe the output to an > isidraw in my own window? > > > Here's a simple sine wave example to demonstrate the problem. (Running in > j807 / jqtide) > > > > NB. warning: put this code in the j editor before running, or > > NB. you may wind up having to kill your j session... > > > load'plot' > > > step =: 0x > > sys_timer_z_ =: 3 : 0 > > n =. step_base_ =: step_base_ + 1 > > NB. plot wants to focus on the window, and if you don't use > > NB. wd to refocus on the editor, your session will become unusable. > > wd 'sm focus edit' [ plot 1 o. 8 %~ n + i:32 > > ) > > > wd'timer 50' NB. change this to 0 to stop the timer > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
