Fornjot – The world needs another CAD program

Re:Fornjot – The world needs another CAD program by billconan on Sunday March 27, 2022 @11:13PM (#30826738)

is there a book teaching b-rep?

I know half-edge and similar data structures for polygon modeling, but I seldom see any materials on b-rep.

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Re:Fornjot – The world needs another CAD program by fsloth on Monday March 28, 2022 @04:53AM (#30828591)

As an innocent bystander my perception is that B-Rep modelling is 75% academically well known and 25% implementation specific black magic.

Academic works: Mäntylä: "Solid modeling" Faigin: "Curves and Surfaces for Computer-Aided Geometric Design" Stroud: "Boundary representation modeling techniques"

Implementations: Parasolid, Acis, OpenCascade.

From implementation point of it's CSG (i.e. implementing the boolean operations) that will be among the biggest hurdles and where most of the black art is.

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Re:Fornjot – The world needs another CAD program by hannobraun on Monday March 28, 2022 @07:58AM (#30829532)

I've been reading Boundary Representation Modelling Techniques by Ian Stroud. Not the most approachable book, and I haven't read nearly all of it, but I already found it very valuable.

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