He, Yang wrote:
Hi all users,

I want to get some snap shots from VMD through inputing my gro and trr file to  
the VMD. But I always find that I can not get the bond connection among the 
atoms and then, I try to use the dynamic bonds to solve this problem but  
another problem is that  when I define a value for the cutoff distance, the 
bonds which don't exist among the atoms in the original shape will also come up 
.

VMD guess at bonds based on atom names and inter-atomic distances, so your .gro file isn't following the rules it expects. Either your structures are broken, or they're coarse-grained and you need to tell VMD to use suitable rules, or something similar.

Mark

Except the dynamic method to figure out this problem, I wonder whether there 
are other ways to fix this problem.

Thank you for any suggestions.

Yang
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