| Id | SourceLengthFormPerpendicularity |
| Name | Source.Length.Form.Perpendicularity |
| Aspect | length |
| Definition | Perpendicularity is a fairly common symbol that requires the referenced surface or line to be perpendicular or 90° from a datum surface or line. Perpendicularity can reference a 2D line, but more commonly it describes the orientation of one surface plane perpendicular to another datum plane. |
| Quantitykind | length |
| Parameters |
Surface, StartPointX, StartPointY, EndPointX, EndPointY, Resolution, Reference |