ARC                     ARC model
PATH                    PATH model.
PATH0                   Path model in structural form
SC                      The universal model
SC0                     Pure edge model, structural form
TRI                     TRI model, triangulations
TRI0                    TRI0 model, structural triangulations
dplyr-methods           Dplyr methods for silicate objects
ear_gc                  Geometry collection of triangles
flight_tracks           Flight tracks
inlandwaters            Inland waters, for parts of Australia, and New
                        Caledonia.
minimal_mesh            Minimal mesh.
mmesh                   Deprecated data set.
plot.SC                 Plot silicate
polymesh                Polygonal mesh
print.sc                Methods for silicate
routes                  Transport routes
sc_arc                  Arc-node topology.
sc_colours              Silicate colours
sc_coord                Coordinate decomposition
sc_edge                 Edges.
sc_node                 Nodes for arc-node topology.
sc_object               Objects, features
sc_path                 Path decomposition
sc_segment              Given a 'PATH" model decompose to 1-dimensional
                        primitives (or 0-dimensional).
sc_uid                  Unique labels
sc_vertex               Extract unique vertices
sfzoo                   Simple features zoo.
silicate                silicate
tri_area                Area of triangles
