Summary: This example shows how to create 3D-Volume charts in F#.
let's first create some data for the purpose of creating example charts:
open System
open Plotly.NET
let linspace (min,max,n) =
if n <= 2 then failwithf "n needs to be larger then 2"
let bw = float (max - min) / (float n - 1.)
Array.init n (fun i -> min + (bw * float i))
let mgrid (min,max,n) =
let data = linspace(min,max,n)
let z = [|for i in 1 .. n do [|for i in 1 .. n do yield data|]|]
let x = [|for i in 1 .. n do [|for j in 1 .. n do yield [|for k in 1 .. n do yield data.[i-1]|]|]|]
let y = [|for i in 1 .. n do [|for j in 1 .. n do yield [|for k in 1 .. n do yield data.[j-1]|]|]|]
x,y,z
let x,y,z =
mgrid(-8.,8.,40)
|> fun (x,y,z) ->
(x |> Array.concat |> Array.concat),
(y |> Array.concat |> Array.concat),
(z |> Array.concat |> Array.concat)
let values =
Array.map3 (fun x y z ->
sin(x*y*z) / (x*y*z)
) x y z
open Plotly.NET.TraceObjects
let volume =
Chart.Volume(
x, y, z, values,
Opacity=0.1,
Surface=(Surface.init(Count=17)),
IsoMin=0.1,
IsoMax=0.8
)