Hi all, I created this sphere with GL Makie: [Capture d’écran_2022-12-25_13-16-55] using GLMakie n = 20 θ = [0;(0.5:n-0.5)/n;1] φ = [(0:2n-2)*2/(2n-1);2] x = [cospi(φ)*sinpi(θ) for θ in θ, φ in φ] y = [sinpi(φ)*sinpi(θ) for θ in θ, φ in φ] z = [cospi(θ) for θ in θ, φ in φ] surface(x, y, z) I wa…

Your code doesn’t generate a surface, because x, y, z are vectors, but for a parameterized surface they should be matrices: using Plots plotlyjs() r = 5 h = 3 m, n =200, 150 u = range(0, 2pi, length=n) v = range(0, h, length=m) us = ones(m)*u' vs = v*ones(n)' #Surface parameterization X = r*cos.(…

you should have a look at cylindrical coordinates: Cylindrical coordinate system - Wikipedia the section on coordinate system conversions should have the right formulas

A cylinder of radius r, and height h, having z-axis as symmetry axis, is a stack of circles of radius r: x= r*cos(u) y=r*sin(u) z=v u \in [0, 2\pi], v \in [0, h] Now you can plot it as any parameterized surface.

[image] Freya_the_Goddess: using GLMakie n = 20 θ = [0;(0.5:n-0.5)/n;1] φ = [(0:2n-2)*2/(2n-1);2] x = [cospi(φ)*sinpi(θ) for θ in θ, φ in φ] y = [sinpi(φ)*sinpi(θ) for θ in θ, φ in φ] z = [cospi(θ) for θ in θ, φ in φ] surface(x, y, z) I have been trying this code but fail to create a cylinde…

I see, it is a matrix now: typeof(X) Matrix{Float64} (alias for Array{Float64, 2})

Hi there, I was wondering if this solution can be adapted to draw a transparent cylinder. Thanks!

To get a transparent cylinder, set transparency, alpha =a, with a ∈ (0,1): Plots.surface(X, Y, Z, c=:red, cbar=:none, legend=false, alpha=0.5) To add the two boundary disks extend the code with the following lines: p=10 R =range(0, 5, length=p) x = cos.(u) *R' y = sin.(u) *R' surface!(x, y, …

Anwered here: [image] How to render a cylinder? Visualization From the docs: using Meshes, MeshViz import GLMakie as Mke c = Cylinder(1.0) viz(c) [image] Here is a collection of random cylinders: cs = [Cylinder(1.0, Segment(rand(Point3, 2))) for i=1:3] viz(cs, col…

Easy fix! h = 3 n = 50 θ = LinRange(0, 2pi, 100) #θ = [0;(0.5:n-0.5)/n;2π] v = [0;(1:n)/n;h] x = [r*cos(θ) for θ in θ, _ in v] y = [r*sin(θ) for θ in θ, _ in v] z = [v for _ in θ, v in v] surface(x, y, z)

How to Create a 3D-Transparent Cylinder with GLMakie or Plots if possible?

General Usage

juliohm May 29, 2023, 11:34pm 9

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How to Create a 3D-Transparent Cylinder with GLMakie or Plots if possible?

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