Display only particles with specific property from trajectory file

OVITO
1

Hello,

From lammps I output a trajectory file including a column header ‘vx’ - after processing with a python script this column is used to show whether a specific particle forms part of a crystal structure, if this is true, vx is set to 4.

Is it possible to view only particles where vx=4 throughout the trajectory? This would allow me to easily view crystal growth without other particles obscuring things.

This is possible in VMD simply by tying vx=4 in selected atoms but I am interested in using OVITO due to the ability to easily combine lammps trajectories with data files and many other useful features.

Any help would be greatly appreciated.
Thanks

2

Yes, the corresponding OVITO workflow would look like this:

  1. Use an Expression Selection Modifier with the following settings:
    Boolean Expression: vx != 4
    to select all particles that are not associated with the specified per-particle value.
  2. Now you can add a Delete Selected Modifier to delete the selected particles from the scene.
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3

That works perfectly, thank you for your help!

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