DEL                     Convert object to a constrained-Delaunay
                        triangulation
DEL0                    Convert object to a constrained-Delaunay
                        triangulation
QUAD                    QUAD model
TRI.QUAD                TRI model extensions
anglr-package           Mesh topology and visualization for spatial
                        mesh structures.
as.mesh3d               Convert to mesh object
auto_3d                 Auto aspect ratio
cad_tas                 Cadastre and Contour
copy_down               Copy down values to vertices
cst10                   Antarctic coastline
dot3d                   Draw a mesh as points in 3D
gebco                   world elevation raster
globe                   Geocentric (XYZ) coordinates
mesh_plot               Plot a mesh surface in 2D
persp3d                 persp3d
plot3d                  3D object plot
reproj                  Coordinate reprojection
sf_data_zoo             sf data frame zoo.
sf_extent               Extent of simple features
shade3d                 Draw a mesh as surfaces in 3D
silicate-models         silicate models
simpleworld             simple world
wire3d                  Draw a mesh as line segments in 3D
