Hi.

I am plotting a volume plot. Like `volume(vol; algorithm=:absorption)`

But I want to update the plot with new data (nvol)!

But when I run `volume!(nvol; algorithm=:absorption)`

it adds the new data to the old data instead of replacing it. Is there a way to get `volume!`

to replace the data instead of adding it to the old data ?

This is how you animate in Makie:

https://docs.makie.org/stable/explanations/animation/

So, you need to do something like this:

```
fig, ax, pl = volume(...)
pl[1] = new_volume
```

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Thanks, your answer got me on the right track.

Here is an example I made.

`using GLMakie

f(x,y,z,k,v) = sin(k*cos(v)*x)*sin(k*sin(v)*y)*cosh(k*z)

xs, ys, zs = [-10:0.1:10 for d in range(1,3)]

vol = Observable([f(x,y,z,1.0,0.0) for x in xs, y in xs, z in zs])

fig=volume(xs,ys,zs,vol; colormap=:redsblues, colorrange=(-1000,1000),algorithm=:absorption)

display(fig)

for v = 0.0:0.1:pi

vol=[f(x,y,z,1.0,v) for x in xs, y in xs, z in zs]

println(â€śphi = $vâ€ť)

sleep(1)

end`

1 Like