Changing the type of particles in the simulation

[Benjamin Sykes]

I am attempting to create a custom updater that changes the particle type once the particle reaches a certain point; however, my attempts have been unsuccessful. All my updater does currently is access the snapshot and change the typeid of the chosen particles, which seems like it would be a solution, but this is not working when I run the sim. Is there anything else I need to add in order to successfully change a particle's type?

[Joshua Anderson]

Benjamin,

For help with a specific piece of code, please share a minimal working example that demonstrates the problem and state the output you expect from the code.

These tutorials are relevant to the general nature of your question:

https://hoomd-blue.readthedocs.io/en/v3.9.0/tutorial/04-Custom-Actions-In-Python/04-Custom-Updater.html

https://hoomd-blue.readthedocs.io/en/v3.9.0/tutorial/04-Custom-Actions-In-Python/06-Improving-Performance.html

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Joshua A. Anderson, Ph.D.

Research Area Specialist, Chemical Engineering, University of Michigan

On Mar 6, 2023, at 8:59 AM, Benjamin Sykes <bb...@email.unc.edu> wrote:

I am attempting to create a custom updater that changes the particle type once the particle reaches a certain point; however, my attempts have been unsuccessful. All my updater does currently is access the snapshot and change the typeid of the chosen particles, which seems like it would be a solution, but this is not working when I run the sim. Is there anything else I need to add in order to successfully change a particle's type?

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