lammps/doc/angle_style_hybrid.txt

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angle_style hybrid command :h3

[Syntax:]

angle_style hybrid style1 style2 ... :pre

style1,style2 = list of one or more angle styles :ul

[Examples:]

angle_style hybrid harmonic cosine
angle_coeff 1 harmonic 80.0 1.2
angle_coeff 2* cosine 50.0  :pre

[Description:]

The {hybrid} style enables the use of multiple angle styles in one
simulation.  An angle style is assigned to each angle type.  For
example, angles in a polymer flow (of angle type 1) could be computed
with a {harmonic} potential and angles in the wall boundary (of angle
type 2) could be computed with a {cosine} potential.  The assignment
of angle type to style is made via the "angle_coeff"_angle_coeff.html
command or in the data file.

In the angle_coeff command, the first coefficient sets the angle style
and the remaining coefficients are those appropriate to that style.
In the example above, the 2 angle_coeff commands would set angles of
angle type 1 to be computed with a {harmonic} potential with
coefficients 80.0, 1.2 for K, r0.  All other angle types (2-N) would
be computed with a {cosine} potential with coefficient 50.0 for K.

An angle style of {none} can be specified as an argument to
angle_style hybrid and the corresponding angle_coeff commands, if you
desire to turn off certain angle types.

[Restrictions:] none

[Related commands:]

"angle_coeff"_angle_coeff.html

[Default:] none