set_positioning: Set hemisphere positioning mode

In ggseg3d: Interactive 3D Brain Atlas Visualization

Set hemisphere positioning mode

Description

Repositions meshes in a ggseg3d widget to either anatomical or centered mode. This modifies the x-coordinates of all meshes in the widget.

Usage

set_positioning(p, positioning = c("anatomical", "centered"))

Arguments

p	ggseg3d widget object
positioning	How to position hemispheres: - "anatomical": Offset so medial surfaces are adjacent at midline. Left at negative x, right at positive x. Best for displaying both hemispheres together. - "centered": Center each hemisphere at the origin. Best for single-hemisphere snapshots where consistent sizing is needed.

Value

ggseg3d widget object with repositioned meshes

Examples

## Not run: 
# View both hemispheres anatomically positioned
ggseg3d(hemisphere = c("left", "right")) |>
  set_positioning("anatomical") |>
  pan_camera("left lateral")

# Atlas creation: centered (default) for consistent sizing
ggseg3d(hemisphere = "left") |>
  set_orthographic() |>
  pan_camera("left lateral") |>
  snapshot_brain("left_lateral.png")

## End(Not run)

ggseg3d documentation built on Feb. 21, 2026, 1:06 a.m.