 | | Re: Cone primitives —Jeff Stembel
| | | | (...) Just out of curiosity, what are 'optional lines'? Jeff (25 years ago, 11-May-99, to lugnet.cad.dev)
| | | | | | | | | | Re: Cone primitives —John VanZwieten
| | | | | Optional lines should actually be called "conditional lines." They are used to model rounded surfaces so that the edge-lines only appear if they form the outer boundary of the rounded surface. If you think of a cylinder, you want edge-lines to show (...) (25 years ago, 11-May-99, to lugnet.cad.dev)
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