> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/templates/concrete-box-girder-bridge-workflow/organization-cbg/work-point-cbg.md).

# Work Point \[CBG]

The Work Point workflow item stores a named reference point in the model so it can be picked, exported to IFC, and used to read back the point's global (X/Y/Z), alignment (station/transverse offset/elevation), and geographic (easting/northing/latitude/longitude) coordinates. It is typically used to capture model points — a boundary node of an element or any parametric picked point — for coordination with survey or other CAD deliverables.

**Point:** Pick the source point, either a boundary point of an existing element or a parametric point in the model. Shown as the picker for the work point.

**Point Size:** Diameter used to draw the work point marker in 3D.

**Geometry Type \[Cross=0/Pyramid=1]:** Shape used to draw the work point marker in 3D — a cross or a pyramid (default: Cross=0).

**PointType \[Boundary/Paramteric]:** Indicates whether the picked point is a boundary point of another element (Boundary) or a free parametric point (Paramteric). The value is auto-derived from the picked reference. (Read-only)

**Reference Alignment:** Alignment against which the work point's station, transverse offset, and elevation are computed. When left NULL the default alignment is used. Links to an `Alignment`.

**X:** Global X coordinate of the work point. Computed from the picked point. May be slow to recompute on large models. (Read-only)

**Y:** Global Y coordinate of the work point. Computed from the picked point. May be slow to recompute on large models. (Read-only)

**Z:** Global Z coordinate of the work point. Computed from the picked point. May be slow to recompute on large models. (Read-only)

**Station:** Station along the reference alignment at the work point. May be slow to recompute on large models. (Read-only)

**Transverse Offset:** Transverse offset from the reference alignment at the station above. May be slow to recompute on large models. (Read-only)

**Elevation:** Elevation at the work point. May be slow to recompute on large models. (Read-only)

**Northing:** Global Northing (Y geographic) of the work point. May be slow to recompute on large models. (Read-only)

**Easting:** Global Easting (X geographic) of the work point. May be slow to recompute on large models. (Read-only)

**Latitude:** Geographic latitude of the work point. May be slow to recompute on large models. (Read-only)

**Longitude:** Geographic longitude of the work point. May be slow to recompute on large models. (Read-only)

### IFC

IFC export controls, with a work-point-specific default for the IFC type and predefined type. These values are used when the model is exported to IFC.

**Type \[IfcBridge/IfcBridgePart/IfcBeam/IfcColumn/IfcSlab/IfcFooting/IfcPile/IfcBearing/IfcReinforcingBar/IfcReinforcingMesh/IfcTendon/IfcMechanicalFastener/IfcAlignment/IfcPositioningElement/IfcKerb/IfcGuardrail/IfcSurfaceFeature/IfcElementAssembly/IfcCableSegment/IfcSensor/IfcDistributionElement/IfcPlate/IfcWall/IfcRail/IfcRoad/IfcDiscreteAccessory/IfcDistributionSystem/IfcMember/IfcBuildingElementProxy]:** IFC entity type used to export the work point (default `IfcBuildingElementProxy`).

**Predefined Type \[Beam/Cornice/Diaphragm/Edgebeam/Girder\_Segment/Hatstone/Hollowcore/Joist/Lintel/Piercap/Spandrel/T\_Beam/Userdefined/Notdefined]:** IFC predefined-type enumeration for the selected IFC type (default `USERDEFINED.WorkPoint`).

**Parent \[Bridge/Superstructure/Deck/Substructure/Foundation/Approach\_Structure/Retaining\_Structure]:** IFC parent assembly the work point is nested under on export (default `AASHTOBRG` — Bridge).

**Properties:** List of custom IFC property-set entries exported with the work point. Each row defines a property value, its property name, and the property set it belongs to.


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