Context I am working on an example of a 3-D visualization of a 2-D glacier flow. Until now the visualization is done for a very small problem (256x256 grid points). Later it should also work for much larger problems. Problem The animation becomes slow after redrawing surface about 25 times. Here is…

I think your confusion comes from this line glacier = Makie.surface!(scene, X, Y, H_v) The mutating plotting functions like plot!(scene, ... return the scene, not the plot object created (bit weird, but that’s how it is). You are currently adding a new surface to the scene each frame. That’s supe…

Thanks @sdanisch ! I am glad to hear that it is an already solved issue :slight_smile: However, I am completely new to Makie; so could you be a little more specific on what should be changed? Moreover, could you please explain me the following: to my understanding Makie.surface! would do a update …

It adds a new plot, just like push!

@sdanisch so how would you recommend to update the glacier surface within the time loop?

Thanks @jules ! You got it 100%. I assumed glacier = Makie.surface!(scene, X, Y, H_v) would give back a handle for the surface, not for the scene. So, I applied your first suggestion with Observables and got #(...) HB_v = fill(NaN, nx, ny) HB_vn = Node(HB_v) scene = Makie.surface(0:dx:lx, 0:dy:ly…

Cool plot! Sad that the glacier just melts away like that :wink: I am not familiar with the syntax data[] It’s quite simple really, it just looks weird. Square brackets without assignment are special syntax for the function Base.getindex, and assignment with square brackets is special syntax for…

Thanks @jules for the additional explanations! Cool plot! Sad that the glacier just melts away like that BTW: what you see here is a simple glacier flow simulation using shallow ice equations: it is a simple nonlinear model of glacier flow over topography under the effect of gravity. To reprod…

Makie: animation becomes slow after redrawing surface about 25 times

General Usage Performance

sdanisch August 26, 2020, 5:48pm 2

This is pretty much exactly the same problem as in: Makie volume animation froze!

1 Like

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Makie: animation becomes slow after redrawing surface about 25 times

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