@gif without saving all images

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1

Is it possible to generate an animation with @gif without saving all images to disk?

2

Yes it is possible, what package that you use to generate the gif?

1 Like
3

Plots, with GR()

4

I use an example of animation from this website:
https://docs.juliaplots.org/latest/animations/

I just add gr() at the second line

using Plots
gr()

@userplot CirclePlot
@recipe function f(cp::CirclePlot)
    x, y, i = cp.args
    n = length(x)
    inds = circshift(1:n, 1 - i)
    linewidth --> range(0, 10, length = n)
    seriesalpha --> range(0, 1, length = n)
    aspect_ratio --> 1
    label --> false
    x[inds], y[inds]
end

n = 150
t = range(0, 2π, length = n)
x = sin.(t)
y = cos.(t)

anim = @animate for i ∈ 1:n
    circleplot(x, y, i)
end
gif(anim, "anim_fps15.gif", fps = 15)

Save the code as plot.jl in an empty directory or any directory you want. I save it at /home/browni/LasthrimProjection/

Then I open terminal cd to that directory and type:

julia --project="."

julia> ]

pkg> add Plots

julia> include("plot.jl")

(in case you haven’t know create a new environment is better to manage packages in certain project)

There will be no images saved. You can include your animation file like my method above.

Capture d’écran_2022-08-05_22-34-41
Capture d’écran_2022-08-05_22-34-411236×573 82.9 KB

If you want to use IJulia / Jupyter Notebook it is more handy you can see the animation directly at the browser.

Capture d’écran_2022-08-05_22-34-58
Capture d’écran_2022-08-05_22-34-581132×771 69.5 KB

Hope this will help you.

1 Like
5

If you use the verbose=true option - gif(anim, "anim_fps15.gif", fps = 15, verbose=true) - you’ll see where on disk the images are saved.

2 Likes
6

Thanks @cormullion for the info.

If there is an option inside gif() function to not saving images, it would help @qwerty a lot

1 Like