ggseg.formats (version 0.0.1)

ggseg_data_tract: Create tract atlas data

Description

Creates a data object for white matter tract atlases. Stores centerlines compactly; tube meshes are generated at render time for efficiency.

Usage

ggseg_data_tract(sf = NULL, centerlines = NULL, meshes = NULL, ...)
brain_data_tract(sf = NULL, centerlines = NULL, meshes = NULL, ...)

Value

An object of class c("ggseg_data_tract", "ggseg_atlas_data")

Arguments

sf

sf data.frame with columns label, view, geometry for 2D rendering. Optional.

centerlines

data.frame with columns:

• label: tract identifier (character)

• points: list-column of n x 3 matrices (centerline coordinates)

• tangents: list-column of n x 3 matrices (for orientation coloring)

meshes

Deprecated. Use centerlines instead. If provided, will be converted to centerlines format.

...

Absorbs legacy fields (e.g. tube_radius, tube_segments) from old cached atlas objects.

Examples

centerlines_df <- data.frame(
  label = "cst_left",
  points = I(list(matrix(rnorm(150), ncol = 3))),
  tangents = I(list(matrix(rnorm(150), ncol = 3)))
)
data <- ggseg_data_tract(centerlines = centerlines_df)