\(\renewcommand{\AA}{\text{Å}}\)

3.15. Body styles

Classes that define body particles are derived from the Body class. Body particles can represent complex entities, such as surface meshes of discrete points, collections of sub-particles, deformable objects, etc.

See the Howto body page for an overview of using body particles and the various body styles LAMMPS supports. New styles can be created to add new kinds of body particles to LAMMPS.

Body_nparticle.cpp is an example of a body particle that is treated as a rigid body containing N sub-particles.

Here is a brief description of methods you define in your new derived class. See src/body.h for details.

Required	“pure” methods that must be overridden
data_body	process a line from the Bodies section of a data file
pack_data_body	pack body data into a buffer for writing to a data file
write_data_body	write body data to a data file
noutrow	number of sub-particles output is generated for
noutcol	number of values per-sub-particle output is generated for
output	output values for the Mth sub-particle
image	provide geometry for dump image rendering

Optional	methods that have a default or empty implementation
pack_comm_body	body attributes to communicate every timestep
unpack_comm_body	unpacking of those attributes
pack_border_body	body attributes to communicate when reneighboring is done
unpack_border_body	unpacking of those attributes
radius_body	return effective radius for use by granular pair styles