Snap to plane

Menu: Geometry->Edit->Snap to plane

This tool modify a little the location of noisy entities, to set an exact 'snap value'.

e.g. to set exactly to z=0.0 the location of entities close to 0.0 (e.g. 1e-6) must set:
snap value to 0.0 (default)
snap axis to Z (default)
snap tolerance a little bigger to 1e-6, e.g. 1e-5 (default is 1e-7)