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Files

T

Ryan Schultz 6d65c06160 Add LinePosition: absolute dimension line placement gated on ForcePerpendicularToFace

- BBIM_Dimension.LinePosition (IfcLengthMeasure): holds the dimension line at
  a fixed global coordinate along cross(world_Z, dim_direction), independent of
  geometry movement
- regenerate_dimension applies LinePosition only when ForcePerpendicularToFace is
  also set (the two are semantically coupled); anchor["pt"] always stores the true
  surface hit so the measured length is unaffected
- BIMAnnotationProperties.line_position uses get/set callbacks instead of an update
  callback to avoid the 'Writing to ID classes in this context is not allowed' error
  that fires when Blender draws the tool header
- DimensionLinePositionWidget (BIM_GGT_dimension_line_position): gizmo group with
  two opposing GizmoCone handles at the curve midpoint; poll requires
  ForcePerpendicularToFace so the handles only appear when the feature is active
- UI: line_position field and gizmo are hidden when ForcePerpendicularToFace is off
- Psets_BBIM_Annotation.ifc: #40 LinePosition template added to BBIM_Dimension

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-16 19:16:02 -05:00