---

Used in some parts of UltraSoft3D to calculate the distance between two points on the earth's surface
https://en.wikipedia.org/wiki/Vincenty%27s_formulae

SURVEY REVIEW April, 1975 
https://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf

C# implementation of Vincenty's formula direct problem
https://gist.github.com/jhmt/f57c44139cf09a532c7efa60c6158913

---

---

Web 3D Consortium, defines standard VRML and X3D
https://www.web3d.org

A concise guide to using VRML
https://www.html.it/guide/guida-vrml

X_ITE X3D JavaScript WebGL browser
https://github.com/create3000/x_ite

---