Parasolid [1] is 30 years old and is the dominant B-rep solid modeling kernel powering Solidworks, Siemens NX and Solid Edge. It's very difficult to see it bein

Parasolid [1] is 30 years old and is the dominant B-rep solid modeling kernel powering Solidworks, Siemens NX and Solid Edge. It's very difficult to see it being replaced as it is so entrenched. Parasolid (written in a C dialect) was a rewrite of Romulus (written in Fortran) and that goes back to 1974. And that was a rewrite of Build that originated from Ian Braid's PhD thesis. [2] I know people who are still working on the same Parasolid code after 30 years. Some of them Disclaimer: Parasolid dev 1989-1995 [1] https://en.wikipedia.org/wiki/Parasolid https://en.wikipedia.org/wiki/Parasolid [2] http://solidmodeling.org/awards/bezier-award/i-braid-a-grayer-and-c-lang/ http://solidmodeling.org/awards/bezier-award/i-braid-a-graye...