| Date | Description | By |
|---|---|---|
| 30 Jun 2026 | Chapter 8 revised and expanded: reorganized offset/unreachable-points content into §8.2.1, added §8.2.2 (Stationing and DistanceAlong) and §8.3.3 (Linear Placement Example), and updated/added several figures. | R. Brice |
| 6 Jul 2026 | Chapter 8 cleanup following the 30 Jun restructuring: removed an unused figure, fixed stale cross-references, and regenerated Figure 8.2.1-1. | R. Brice |
| 7 Jul 2026 | Chapter 8 §8.2/§8.3 rewritten to separate IfcAxis2PlacementLinear's Location and Orientation roles, anchored on BasisCurve's tangent; fixed Figure 8.1.2-2 units, and added a §12.3.4 vertical-offset test case. |
R. Brice |
| 8 Jul 2026 | Chapter 9 §9.5.2 example reworked with a non-zero starting station to clarify Station vs. DistanceAlong; Figure 9.5.2-1 extended with IfcAlignment, a second IfcRelPositions, and a starting-station referent; §9.6 checklist updated. |
R. Brice |
| 9 Jul 2026 | Chapter 9 updated to cover the Product Span Positioning concept. | R. Brice |
| 10 Jul 2026 | §9.5 rewritten per ISO 19148 §6.2.12.1. | R. Brice |
| 13 Jul 2026 | §9.5.3 simplified: IfcAnnotation removed from the intersection-referent correlation pattern. |
R. Brice |
| 15 Jul 2026 | §10.5.4 expanded to cover cross-section/string-line redundancy. | R. Brice |
| 17 Jul 2026 | Chapter 10 expanded to cover an additional guide-curve rooting and tag scoping technique, with examples and figures updated to match. | R. Brice |