Checker searches for 3D (Z) coordinates.
Fixer offers:
cleaning the structures by 2D clean (clean);
setting the atomic z-coordinates to zero (removezcoordinate).
Example :
| Three Dimension Checker ( 3d) | Warning: | Fix | |
|---|---|---|---|
| Clean ( clean) | Remove Z-Coordinate ( removezcoordinate) | ||
| Detect 3D coordinates |  ex_3d_ch |  ex_3d_f |  ex_3d_fz |