Module authoring 

Author IFC4X3 alignment entities from plain numbers.

Mirrors ADR 0011: this is the write direction of the same bridge that reads alignments, and it indexes crate::slot rather than restating a single attribute position.

Authoring records is independent of 3D composition. A file states its horizontal layout, its vertical profile and its cant as separate parameter segments; composing them into a centreline is a lowering concern and does not gate writing the records.

Values are plain f64 in the units the caller declares in the file. Nothing here converts units: the readers apply AlignmentUnits on the way out, so applying a factor here too would double-scale.

Structs

CantSegmentDraft

Authored fields for IfcAlignmentCantSegment.

HorizontalSegmentDraft

Authored fields for IfcAlignmentHorizontalSegment.

VerticalSegmentDraft

Authored fields for IfcAlignmentVerticalSegment.

Functions

alignment

Stage an IfcAlignment.

alignment_segment

Stage an IfcAlignmentSegment wrapping one parameter segment.

axis2_placement_linear

Stage an IfcAxis2PlacementLinear.

cant_layout

Stage an IfcAlignmentCant.

cant_segment

Stage an IfcAlignmentCantSegment.

cartesian_point

Stage an IfcCartesianPoint.

horizontal_layout

Stage an IfcAlignmentHorizontal.

horizontal_segment

Stage an IfcAlignmentHorizontalSegment.

linear_element

Stage an IfcLinearElement.

linear_placement

Stage an IfcLinearPlacement.

linear_positioning_element

Stage an IfcLinearPositioningElement.

point_by_distance

Stage an IfcPointByDistanceExpression.

referent

Stage an IfcReferent.

stationing

Stage the Pset_Stationing property set for a referent.

vertical_layout

Stage an IfcAlignmentVertical.

vertical_segment

Stage an IfcAlignmentVerticalSegment.