Update docs: angle_zero

.. index:: angle\_style zero

.. index:: angle_style zero

angle\_style zero command

=========================

angle_style zero command

========================

Syntax

""""""

.. parsed-literal::

.. code-block:: LAMMPS

   angle_style zero *nocoeff*

""""""""

.. parsed-literal::

.. code-block:: LAMMPS

   angle_style zero

   angle_style zero nocoeff

   angle_coeff \*

   angle_coeff \* 120.0

   angle_coeff *

   angle_coeff * 120.0

Description

"""""""""""

As an example, the :doc:`compute angle/local <compute_angle_local>`

command can be used to compute the theta values for the list of

triplets of angle atoms listed in the data file read by the

:doc:`read\_data <read_data>` command.  If no angle style is defined,

:doc:`read_data <read_data>` command.  If no angle style is defined,

this command cannot be used.

The optional *nocoeff* flag allows to read data files with AngleCoeff

section for any angle style. Similarly, any angle\_coeff commands

section for any angle style. Similarly, any :doc:`angle_coeff <angle_coeff>` commands

will only be checked for the angle type number and the rest ignored.

Note that the :doc:`angle\_coeff <angle_coeff>` command must be used for

Note that the :doc:`angle_coeff <angle_coeff>` command must be used for

all angle types. If specified, there can be only one value, which is

going to be used to assign an equilibrium angle, e.g. for use with

:doc:`fix shake <fix_shake>`.

Related commands

""""""""""""""""

:doc:`angle\_style none <angle_none>`

:doc:`angle_style none <angle_none>`

**Default:** none

.. _lws: http://lammps.sandia.gov

.. _ld: Manual.html

.. _lc: Commands_all.html

"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c

:link(lws,http://lammps.sandia.gov)

:link(ld,Manual.html)

:link(lc,Commands_all.html)

:line

angle_style zero command :h3

[Syntax:]

angle_style zero {nocoeff} :pre

[Examples:]

angle_style zero

angle_style zero nocoeff

angle_coeff *

angle_coeff * 120.0 :pre

[Description:]

Using an angle style of zero means angle forces and energies are not

computed, but the geometry of angle triplets is still accessible to

other commands.

As an example, the "compute angle/local"_compute_angle_local.html

command can be used to compute the theta values for the list of

triplets of angle atoms listed in the data file read by the

"read_data"_read_data.html command.  If no angle style is defined,

this command cannot be used.

The optional {nocoeff} flag allows to read data files with AngleCoeff

section for any angle style. Similarly, any angle_coeff commands

will only be checked for the angle type number and the rest ignored.

Note that the "angle_coeff"_angle_coeff.html command must be used for

all angle types. If specified, there can be only one value, which is

going to be used to assign an equilibrium angle, e.g. for use with

"fix shake"_fix_shake.html.

[Restrictions:] none

[Related commands:]

"angle_style none"_angle_none.html

[Default:] none