Weighted porous cube-mask surface helpers — porous_cube_surface

Convenience wrappers around recursive.cube.mask.surface.*() for three named porous cubical families: a periodic tunnel lattice, an asymmetric cavity family, and a deterministic channel network. Each family uses a reusable base keep-array and then recurses it in exactly the same way as the generic cube-mask helpers.

Usage

cube.periodic.tunnels.surface.graph(
  level = 2,
  side = 5,
  tunnel.width = 1,
  tunnel.period = 2,
  tunnel.offset = 2,
  surface = c("standard", "bulged", "twisted", "wavy"),
  amplitude = 0.2,
  freq = 2,
  twist = 0.6,
  x.scale = 1,
  y.scale = 1,
  z.scale = 1,
  normalize = c("median", "mean", "none")
)

cube.asymmetric.cavities.surface.graph(
  level = 2,
  side = 5,
  cavity.size = 2,
  pocket.size = max(1L, cavity.size - 1L),
  surface = c("standard", "bulged", "twisted", "wavy"),
  amplitude = 0.2,
  freq = 2,
  twist = 0.6,
  x.scale = 1,
  y.scale = 1,
  z.scale = 1,
  normalize = c("median", "mean", "none")
)

cube.channel.network.surface.graph(
  level = 2,
  side = 5,
  channel.width = 1,
  branch.offset = 2,
  surface = c("standard", "bulged", "twisted", "wavy"),
  amplitude = 0.2,
  freq = 2,
  twist = 0.6,
  x.scale = 1,
  y.scale = 1,
  z.scale = 1,
  normalize = c("median", "mean", "none")
)

Arguments

level: Recursion depth. Must be at least 1.
side: Side length of the base cubic keep-array.
tunnel.width: Width of each removed tunnel band.
tunnel.period: Spacing between successive tunnel bands.
tunnel.offset: Starting index of the first tunnel band.
surface: Cube-mask geometry family. One of "standard", "bulged", "twisted", or "wavy".
amplitude: Finite deformation amplitude.
freq: Positive modulation frequency used only when surface = "wavy".
twist: Finite twist strength used only when surface = "twisted".
x.scale: Positive horizontal scaling applied to the canonical cube coordinates.
y.scale: Positive vertical scaling applied to the canonical cube coordinates.
z.scale: Positive depth scaling applied to the canonical cube coordinates.
normalize: Normalization applied to the induced edge lengths. One of "median", "mean", or "none".
cavity.size: Side length of the larger interior cavity block.
pocket.size: Side length of the smaller secondary cavity block.
channel.width: Width of each removed channel in the channel-network family.
branch.offset: Interior offset of the extra branch channel in the channel-network family.

Value

Each graph bundle's coords_surface component is an n x 3 numeric matrix with columns x, y, and z.

Each *.surface.graph() helper returns the same components as recursive.cube.mask.surface.graph(), with a family-specific family field, class, and label.

Examples

asymmetric <- cube.asymmetric.cavities.surface.graph(
  level = 1, side = 5, cavity.size = 1, pocket.size = 1
)
channels <- cube.channel.network.surface.graph(
  level = 1, side = 5, channel.width = 1, branch.offset = 2
)
tunnels <- cube.periodic.tunnels.surface.graph(
  level = 1, side = 5, tunnel.width = 1,
  tunnel.period = 2, tunnel.offset = 1
)