Expand description
General exact booleans between exact B-reps with analytic faces.
The general-fuse pipeline of ADR 0075, built in stages:
section_edges: where two operands’ faces cross, as exact curves trimmed exactly to both faces;split_face: one face cut along its section edges into regions, in the face’s own parameters, with exact pcurves;boolean: the regions classified against the other solid, selected by operator and sewn into the result.
Operands may touch as well as cross: faces sharing a patch of one surface, sections running along existing edges, tangent contact, and solids meeting along an edge or at a point are all handled, not refused.
Nothing is approximated. A configuration a step cannot build exactly is
refused by name (BooleanError), never meshed or fitted, and every
decision comes from an exact predicate or certified membership: a point
too close to a boundary to decide is refused, not guessed.
Structs§
- Piece
- One stretch of a split face’s boundary, in the direction the region’s loop runs.
- Region
- One region of a split face: an outer loop and its holes.
- Section
Edge - A piece of an intersection curve lying on a face of each operand.
Enums§
- Boolean
Error - Why a boolean step could not be carried out exactly.
- Piece
Source - Where a piece of a split face’s boundary came from.
Functions§
- boolean
- The exact boolean of two exact B-rep solids.
- section_
edges - Every section edge between the faces of
aand the faces ofb. - split_
face - Split
faceofbrepalong the section edges lying on it.