I have a ListLinePlot with 40,000 points. When it's displayed on-screen the input fields are not responsive (text appears slowly well after the user is done typing). The code looks something like this:

DynamicModule[{plot, var},
    Dynamic[Refresh[plot, None]]
Initialization :> (plot = makePlot[])

makePlot[] := ListLinePlot[{#, Sin[#] + RandomReal[0.1]} & /@ 
    Subdivide[0, 10, 40000], ImageSize -> 500]

So even when I use Refresh[plot, None] it still causes the InputField to suffer. I'd prefer to use TrackedSymbols :> {plot} so that it can be updated when I need it to.

I've worked around this by resampling the plot and displaying fewer points. Also, rasterizing the plot works, but that's not really what I want to do. Is there a good way to control the Notebook frontend so that the displayed plot is not impacting other elements around it?

  • 1
    $\begingroup$ Sooner or later (depends on a machine too) the amount of boxes in a notebook will affect the performance, probably of a whole notebook. It takes more effort but is often a good idea to really work with gutted versions of big plots / images to improve performance. You can still add interactivity on top of a rasterized background. How this case can be improved depends on what exactly are you doing. $\endgroup$
    – Kuba
    Sep 9, 2019 at 11:19
  • $\begingroup$ Thanks for the reply, @Kuba. Correct me if I'm wrong, but it seems other frameworks don't have this issue - like Plotly in JavaScript. Is this because behind the scenes those frameworks are already optimizing what's shown? Perhaps the "rigor" of Mathematica allows for graphical overload on purpose. Is there a good Option to use with ListLinePlot to improve the efficiency of the plot? $\endgroup$ Sep 9, 2019 at 12:00
  • $\begingroup$ One thing to try before drastic changes is to do Graphics+Line to make sure that only essentials are there. I do not know much about this issue in other frameworks. At some point vector grafics have that problem, there are comercial JS packages that serve exactly this purpose. $\endgroup$
    – Kuba
    Sep 9, 2019 at 12:29
  • $\begingroup$ Which version are you using? $\endgroup$
    – Edmund
    Sep 10, 2019 at 23:30
  • $\begingroup$ 12.0 also have access to 12.1 beta $\endgroup$ Sep 12, 2019 at 1:37


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