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examples/quarter_wavelength_antenna/quarter_wavelength_antenna.jl

@@ -2,13 +2,13 @@
 We simulate a quarter wavelength antenna above conductor ground plane and compute its nearfield radiation pattern
 =#
 
-using UnPack, LinearAlgebra, GLMakie, CoordinateTransformations
+using UnPack, LinearAlgebra, GLMakie, CoordinateTransformations, NearestNeighbors
 using GLMakie: volume
-using Luminescent, LuminescentVisualization
+# using Luminescent, LuminescentVisualization
 
 # if running directly without module # hide
-# include("$(pwd())/src/main.jl") # hide
-# include("$(pwd())/../LuminescentVisualization.jl/src/main.jl") # hide
+include("$(pwd())/src/main.jl") # hide
+include("$(pwd())/../LuminescentVisualization.jl/src/main.jl") # hide
 
 name = "quarter_wavelength_antenna"
 F = Float32
@@ -64,18 +64,24 @@ if dogpu
 end
 
 #=
-Plot nearfield Poynting flux thru our Spherical monitor integrated for 1 period
+Compute nearfield Poynting flux  integrated for 1 period thru our Spherical monitor consisting of points on sphere
 =#
 nt = round(Int, 1 / dt)
 r = dt * sum(flux.(u[end-nt+1:end], (monitor_instances[1],),))
-
 _, θ, ϕ = eachrow(sphcoords(monitors[1])[:, inbounds(monitor_instances[1])])
-cfs = CartesianFromSpherical()
-rvecs = cfs.(splat(Spherical).(zip(r, F.(θ), F.(ϕ))))
 
-fig = Figure()
-ax = Axis3(fig[1, 1])
-plot!(ax, getindex.(rvecs, 1), getindex.(rvecs, 2), getindex.(rvecs, 3),)
+#=
+Interpolate onto regular grid for Plot
+=#
+tree = KDTree(hcat(θ, ϕ)')
+θ = 0:15°:360°
+ϕ = 0:15°:180°
+n = length(ϕ)
+m = length(θ)
+i, = nn(tree, stack(vec(collect.(Base.product(θ, ϕ)))),)
+cfs = CartesianFromSpherical()
+rvecs = reshape(cfs.(splat(Spherical).(zip(r[i], θ * ones(n)', ones(m) * ϕ'))), m, n)
+fig = surface(getindex.(rvecs, 1), getindex.(rvecs, 2), getindex.(rvecs, 3),)
 display(fig)
 save("antennapattern.png", fig)
 

scripts/setup.jl

@@ -1,5 +1,5 @@
 using Pkg
-# ]add UnPack, BSON,DataStructures, StatsBase, Documenter,ImageTransformations,Interpolations, Zygote, Optim,ArrayPadding, Porcupine, Jello, GLMakie, Functors, CoordinateTransformations,Lazy,AbbreviatedStackTraces,ReverseStackTraces,CUDA,Flux
+# ]add UnPack, BSON,DataStructures, StatsBase, Documenter,ImageTransformations,Interpolations, Zygote, Optim,ArrayPadding, Porcupine,NearestNeighbors, Jello, GLMakie, Functors, CoordinateTransformations,Lazy,AbbreviatedStackTraces,ReverseStackTraces,CUDA,Flux
 # Pkg.add(url="https://github.com/paulxshen/ArrayPadding.jl")
 # Pkg.add(url="https://github.com/paulxshen/Jello.jl")
 

src/Luminescent.jl

@@ -5,7 +5,7 @@ export maxwell_update!, maxwell_update!, maxwell_update
 # stepTM, step1, , stepTE
 export Periodic, PML, PEC, PMC, InPad, OutPad
 export PlaneWave, GaussianBeam, Source, place, place!
-export Monitor, power, flux, field, support, sphcoords, inbounds
+export Monitor, SphereMonitor, power, flux, field, support, sphcoords, inbounds
 export maxwell_setup, apply, apply!, °
 end