BRepOffsetAPI_NormalProjection: What does it mean that target face is considered to be a 2D surface?

The documentation of BRepOffsetAPI_NormalProjection states:

"Target Face of projection is considered to be a 2D surface​."


What is meant by "2D surface"?


Forum supervisor's picture

Dear Timo,

It is a pure documentation bug.
The issue #27306 is created in Mantis Bug Tracker.

Best regards