I have a Dash app running with a figure (scatter3d) containing 3 traces. The last trace is huge and the first two are much smaller. To prevent the entire figure to be replotted in my callback, I like to use
extendData to replace the data in the smaller first two traces.
However, I’m able to replace the data in either one of the traces but not both using the extendData property:
The first trace is of length
N1 and the second of length
N2. I’m using julia (but I guess the python version is similar).
callback!( app, Output("graph", "extendData"), Input("year-slider-2", "value"), ) do value N1 = 5 return [Dict("x"=>[randn(N1)],:y=>[randn(N1)],:z=>[randn(N1)]),,N1] # update first trace end
Replacing the second trace is also possible by replacing it to
N2 = 10 return [Dict("x"=>[randn(N2)],:y=>[randn(N2)],:z=>[randn(N2)]),,N2] # update second
But how do I replace both traces with
N2 being unequal. I tried different combos but none seem to work.
The documentation say: that
maxPoints (optional) is either an integer defining the maximum number of points allowed or an object with key:value pairs matching
updateData. I was not able to parse the “key:value pairs matching updateData” part for this to work.