Module feature 

Form features: the named operations a modeller thinks in.

A pocket is a prism cut into a solid; a pad is the same prism fused onto it; a rib is a thin pad; a slot is a pocket that runs out of both ends; a revolved feature turns a profile instead of sweeping it. None of these is a new geometric construction; each is a sweep and a boolean, and what makes it a feature is that the operation says which it was and carries the profile through the history.

Each operation fixes two things in one place: which way the sweep runs so the tool reaches the material it is meant to reach, and what the history says afterwards.

Enums

Feature

Which way a feature meets the material.

Functions

feature_prism

Sweep profile along vector and add or remove the result.

feature_revol

Turn profile about axis through angle and add or remove the result.

feature_rib

A rib: a pad of stated thickness, swept from a profile face’s own plane.

feature_slot

A slot: a pocket swept along a direction and cut clean through.