The package description has been updated to include the published version of
the paper "The Mean Shape under the Relative Curvature Condition"
in the Journal of Computational and Graphical Statistics
(DOI: 10.1080/10618600.2025.2535600).
The plotting issue reported by macOS users due to the lack of native OpenGL
support has been fixed by introducing the helper functions
etrep_open3d() and etrep_show3d().
These functions allow plotting to fall back to a WebGL viewer
and open the scene in a browser when a native rgl device is not available.
tube_Surface_Mesh():
rgl mesh3d object.elliptical_Tube_Euclideanization():