GIFTISurfaceGeometryMetaInfo-class: GIFTISurfaceGeometryMetaInfo

In bbuchsbaum/neurosurf: Data structures and visualization for surface-based neuroimaging data

GIFTISurfaceGeometryMetaInfo

Description

This class contains meta information for surface-based geometry for the GIFTI data format

Slots

info

the underlying gifti object returned by readgii

Examples

# First create a SurfaceGeometryMetaInfo parent object
meta_info <- new("SurfaceGeometryMetaInfo",
                 header_file = "rscan01_lh.gii",
                 data_file = "rscan01_lh.gii",
                 file_descriptor = new("FileFormat"),
                 vertices = 40000L,
                 faces = 79998L,
                 embed_dimension = 3L,
                 label = "white",
                 hemi = "lh")

# Use the example file included in the package
example_gii_file <- system.file("extdata", "rscan01_lh.gii", package = "neurostyle")

if (file.exists(example_gii_file) && requireNamespace("gifti", quietly = TRUE)) {
  # Load the actual GIFTI file
  gifti_obj <- gifti::readgii(example_gii_file)

  # Create GIFTISurfaceGeometryMetaInfo object with the real file
  gifti_meta <- new("GIFTISurfaceGeometryMetaInfo",
                   header_file = meta_info@header_file,
                   data_file = meta_info@data_file,
                   file_descriptor = meta_info@file_descriptor,
                   vertices = meta_info@vertices,
                   faces = meta_info@faces,
                   embed_dimension = meta_info@embed_dimension,
                   label = meta_info@label,
                   hemi = meta_info@hemi,
                   info = gifti_obj)
}

bbuchsbaum/neurosurf documentation built on June 10, 2025, 8:22 p.m.