GeometricalCharacteristics
| Characteristic | Specification | Symbol | Unicode character | Datum Needed |
|---|---|---|---|---|
| Coaxiality for median lines | Location |
|
U+25CE | Yes |
| Concentricity for centre points | Location |
|
U+25CE | Yes |
| Position | Location |
|
U+2316 | Yes |
| Flatness | Form |
|
U+23E5 | No |
| Straightness | Form |
|
U+23E4 | No |
| Line profile | Form |
|
U+2312 | No |
| Surface profile | Form |
|
U+2313 | No |
| Roundness | Form |
|
U+25CB | No |
| Cylindricity | Form |
|
U+232D | No |