Module analytic

Expand description

Exact source descriptions for IFC geometry, in representation-local IFC units. A description does not claim to include later boolean operations.

Structs§

AnalyticExtrusion: One source extrusion in IFC file-length units and IFC Z-up. Position maps the profile’s coordinates into the solid’s local frame; a product or mapping transform is separate. No CSG or external void is applied here.
AnalyticPoint: A world-space point kept as an origin and a local offset. Comparing nearby points this way retains small arc offsets at large georeferenced origins.
AnalyticProfile: IfcProfileDef geometry before IfcExtrudedAreaSolid.Position and mapping. Its Position belongs to the profile and is returned separately, in raw IFC file units; no approximation from drawing or meshing is used.
AnalyticProfileLoop: One ordered, closed source boundary. Signed area preserves the authored traversal direction: positive is counterclockwise in the profile XY plane.
AnalyticSegmentFrame: Endpoints and unit tangents in directrix traversal direction. A zero-length line or zero-sweep arc has no defined tangent.
AnalyticSweptDisk: The authored IfcSweptDiskSolid before any enclosing boolean operation.

AnalyticCurveSegment: An ordered directrix primitive. Angles are radians in the circle’s local frame.
AnalyticStatus: Whether every part of the authored directrix has an exact supported form.
ProfileLoopKind

extract_analytic_extrusion: Return a complete exact source or an explicit unsupported reason. Even a malformed required attribute keeps its solid STEP ID in the result.
extract_analytic_profile: Read supported exact profile loops, preserving an unsupported reason on the source record rather than publishing a partial or tessellated contour.
extract_swept_disk: Extract an exact directrix where supported. Unsupported curve types return a status and no partial segments; malformed required attributes return an error.