Set here the numerical tolerances used to calculate coordination polyhedra.
Values too large may result in numerical inaccuracies.
Visible
When the mix product of four vertices (defining a face and a new vertex),
is larger than
Visible the face is visible from the vertex and
must be replaced. Increasing
Visible may reduce face reconstruction,
but may result in numerical inaccuracies. The whole calculation is very
sensitive to this parameter, so it should be handled carefully. Currently
the maximum allowed value is
1.0E-5.
For complex systems, where different faces have almost the same orientation,
forming curved surfaces, setting
Visible to
0 might eliminate
numerical errors.
Coplanar
The initial triangle faces are merged when the mix product
of four vertices (belonging to both faces) is smaller than
Coplanar. Increasing
Coplanar promotes face merging,
but may result in numerical inaccuracies. Currently the maximum
allowed value is
1.0E-1.
Setting
Coplanar to
0 disables face merging,
so all faces will be triangles.