GeometricalCharacteristics
| Characteristic | Specification | Symbol | Unicode character | Datum Needed |
|---|---|---|---|---|
| Surface profile | Location |
|
U+2313 | Yes |
| Line profile | Location |
|
U+2312 | Yes |
| Symmetry | Location |
|
U+232F | Yes |
| Coaxiality for median lines | Location |
|
U+25CE | Yes |
| Concentricity for centre points | Location |
|
U+25CE | Yes |
| Position | Location |
|
U+2316 | Yes |
| SurfaceProfile | Orientation |
|
U+2313 | Yes |
| Parallelism | Orientation |
|
U+2225 | Yes |
| Perpendicularity | Orientation |
|
U+27C2 | Yes |
| Angularity | Orientation |
|
U+2220 | Yes |