Hi,
The meta particlse don't have an entry in the EDEM data structure (this is a current feature request). As such we don't have the data like meta particle size/diameter available.
For myself I don't have a good answer to this, you can export the diameter option from the Analyst, this is calculated by EDEM in post-processing based on the particle contacts. You could theoretically look at similar analysis by checking which particles have contacts, and if those contacts have active bonds. You can then use this data to populate a list with the positions of neighbouring particles with bonds and calculate the size this way.
Regards
Stephen
