SurfaceDataMetaInfo-class: SurfaceDataMetaInfo
In bbuchsbaum/neurosurf: Data structures and IO for surface-based neuroimaging data

This class contains meta information for surface-based data (the values that map to a surface geometry)

header_file: name of the file containing meta information
data_file: name of the file containing data
file_descriptor: descriptor of image file format
node_count: the number of nodes for which surface data exists
nels: the number of data vectors (typically the number of columns in the surface data matrix; nels = 1 for a single surface data set)
label: a label indicating the type of surface (e.g. white, pial, inflated, flat, spherical)