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Re: [lammps-users] region command with block &union argument
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Re: [lammps-users] region command with block &union argument

From: Julien Guénolé <julien.guenole@...4839...>
Date: Thu, 30 Nov 2017 19:30:06 +0100

I do not see a particular problem in the command you copied here.
Could you post the part of your parameter and log that describes the construction of the system, regions and groups?

On 30/11/17 14:51, liyi bai wrote:
Dear Users,

I wanna dump the atoms in specified region.The total number of dumped atoms can be change with radius R.However,the total number of dumped atoms can not be changed with the lateral size of plate.
Like, If I change R=10 to R=20.The dumped atoms will be decreased. If I change the plate lateral size X=40 to X=60 and  Y=40 to Y=60,the total number of dumped atoms can not be change.

Is there any one knows what's wrong with my specified region shown below.Any suggestions are 

partial input :

region      sideplate  block  0 40 0 40 0 30 side in
sidetip    sphere 20 20  30 10(R) side out
myregion  union 2 sideplate sidetip

Thank you very much

Best Regards

Liyi Bai

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Dr. Julien GUÉNOLÉ
Postdoctoral researcher
Department of Materials Science & Engineering
Institute 1: General Material Properties
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