Tracking Expression selection at specific frame

OVITO
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1

Hello,

I want to apply a selection like (Position.X > 13 && Position.X < 32 ) at a specific frame, but I want to follow the selected particles at frame1 at different frames. What should I add to the expression selection?

Thanks

2

Hi,

You can use the Freeze Property Modifier to “freeze” the particle selection property from frame 1.
https://www.ovito.org/docs/current/reference/pipelines/modifiers/freeze_property.html#particles-modifiers-freeze-property
Also see here: Motion visualization with marker particles — OVITO User Manual 3.10.6 documentation

3

Thank you, that is what I am looking for.