angle_zero.txt
caf9483a0a7clammm-master

angle_zero.txt
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			.. index:: angle_style zero

			angle_style zero command
			========================

			Syntax
			""""""

			.. parsed-literal::

			angle_style zero nocoeff

			Examples
			""""""""

			.. parsed-literal::

			angle_style zero
			angle_style zero nocoeff
			angle_coeff *
			angle_coeff * 120.0

			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 :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,
			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 :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>`.

			Restrictions
			""""""""""""
			none

			Related commands
			""""""""""""""""

			:doc:`angle_style none <angle_none>`

			Default: none


			.. _lws: http://lammps.sandia.gov
			.. _ld: Manual.html
			.. _lc: Section_commands.html#comm