Combine spatial binning and construc surface modifier

OVITO
1

Dear all:
Is it possible to bin the void data (i.g. void numbers ) calculated from the Construct Surface Modifier? Seems the Spatial binning Modifier only accepts atomic properties as inputs. @stukowski . the key point is to associate identified voids with individual atoms, is that possible in OVITO? I can do Python scripting, however need some inspiration.
Thanks in advance

2

Here’s a couple of features that you might find helpful:

  1. If you select <None> as input property to the Spatial binning modifier in OVITO Pro, the modifier will take uniform 1 as input value for all particles. This can be useful for counting the number of particles in each bin or calculating the number density of particles.
  2. When using the alpha-shape algorithm in the Construct Surface Mesh modifier, OVITO Pro provides an additional option Map particles to region.
4

Thank you Kalcher, the map to region option in Ovito Pro generates an index of regions which a particle belongs to, however, what I need is the spatial location of the empty region itself. if there are ways to solve that, please let me know.

5

Yes, through the Python API you have direct access to the vertices of the triangle mesh, which you could e.g. use to calculate the center of mass of each empty region.