Geometrical tolerancing
| Characteristic | Specification | Symbol | Unicode character | Datum Needed | 3D Rendering for lines | 3D Rendering for surface |
|---|---|---|---|---|---|---|
| Roundness | Form |
|
U+25CB | No | ||
| Straightness | Form |
|
U+23E4 | No | ||
| Surface profile | Location |
|
U+2313 | Yes | ||
| Surface profile | Form |
|
U+2313 | No | ||
| SurfaceProfile | Orientation |
|
U+2313 | Yes | ||
| Symmetry | Location |
|
U+232F | Yes |