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Added periodic boundary conditions graphics
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2 changed files with 116 additions and 3 deletions
115
graphics/periodic_boundary_conditions.jl
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115
graphics/periodic_boundary_conditions.jl
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@ -0,0 +1,115 @@
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using Luxor
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using Random: Random
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using StaticArrays: SVector
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using ReCo: ReCo
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function gen_periodic_boundary_conditions_graphics()
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Random.seed!(23)
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drwaing_box_length = 300
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graphics_export_dir = "exports/graphics"
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mkpath(graphics_export_dir)
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Drawing(
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drwaing_box_length,
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drwaing_box_length,
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"$graphics_export_dir/periodic_boundary_conditions.pdf",
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)
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origin()
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particle_radius = 10
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box_len = drwaing_box_length / 3
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half_box_len = box_len / 2
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N_in_one_box = 5
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colors = ["red", "blue", "orange", "green", "cyan"]
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distance_limit = 0.99 * 2 * particle_radius
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particles = Vector{ReCo.Particle}(undef, 9 * N_in_one_box)
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translation_vecs = [
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SVector(0.0, 0.0),
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SVector(box_len, 0.0),
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SVector(box_len, box_len),
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SVector(0.0, box_len),
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SVector(-box_len, box_len),
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SVector(-box_len, 0.0),
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SVector(-box_len, -box_len),
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SVector(0.0, -box_len),
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SVector(box_len, -box_len),
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]
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p1_c = SVector(0.0, 0.0)
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for p1_ind in 1:N_in_one_box
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while true
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x = (rand() - 0.5) * (box_len - 2 * particle_radius)
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y = (rand() - 0.5) * (box_len - 2 * particle_radius)
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p1_c = SVector(x, y)
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no_collision = true
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for p2_ind in 1:(p1_ind - 1)
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if ReCo.norm2d(p1_c - particles[p2_ind].c) < distance_limit
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no_collision = false
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break
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end
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end
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if no_collision
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break
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end
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end
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setcolor(colors[p1_ind])
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for box_ind in 1:9
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c = p1_c + translation_vecs[box_ind]
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particle = ReCo.Particle(0, c, 0.0)
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particles[p1_ind * box_ind] = particle
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circle(c[1], c[2], particle_radius, :fill)
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end
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end
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setcolor("black")
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setline(1.0)
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for sign in (1, -1)
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line(
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Point(sign * drwaing_box_length / 6, drwaing_box_length / 2),
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Point(sign * drwaing_box_length / 6, -drwaing_box_length / 2),
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:stroke,
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)
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line(
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Point(drwaing_box_length / 2, sign * drwaing_box_length / 6),
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Point(-drwaing_box_length / 2, sign * drwaing_box_length / 6),
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:stroke,
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)
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end
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p1_ind = 3
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p2_ind = 5
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p1_c = particles[p1_ind].c
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p2_c = particles[p2_ind].c
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normal_vec_form_p1_to_p2 = p2_c - p1_c
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min_image_vec = ReCo.minimum_image(normal_vec_form_p1_to_p2, half_box_len)
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min_image_vec_from_p1 = p1_c + min_image_vec
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setcolor("black")
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arrow(Point(p1_c[1], p1_c[2]), Point(p2_c[1], p2_c[2]); linewidth=2.0)
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setcolor("red")
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arrow(
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Point(p1_c[1], p1_c[2]),
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Point(min_image_vec_from_p1[1], min_image_vec_from_p1[2]);
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linewidth=2.0,
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)
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finish()
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return nothing
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end
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@ -93,6 +93,4 @@ function gen_verlet_and_cell_lists_graphics()
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finish()
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return nothing
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end
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# TODO: Deduplicate with radial_distribution.jl
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end
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