bond_zero.txt
caf9483a0a7clammm-devel

bond_zero.txt
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			.. index:: bond_style zero

			bond_style zero command
			=======================

			Syntax
			""""""

			.. parsed-literal::

			bond_style zero nocoeff

			Examples
			""""""""

			.. parsed-literal::

			bond_style zero
			bond_style zero nocoeff
			bond_coeff *
			bond_coeff * 2.14

			Description
			"""""""""""

			Using an bond style of zero means bond forces and energies are not
			computed, but the geometry of bond pairs is still accessible to other
			commands.

			As an example, the :doc:`compute bond/local <compute_bond_local>`
			command can be used to compute distances for the list of pairs of bond
			atoms listed in the data file read by the :doc:`read_data <read_data>`
			command. If no bond style is defined, this command cannot be used.

			The optional nocoeff flag allows to read data files with a BondCoeff
			section for any bond style. Similarly, any bond_coeff commands
			will only be checked for the bond type number and the rest ignored.

			Note that the :doc:`bond_coeff <bond_coeff>` command must be used for
			all bond types. If specified, there can be only one value, which is
			going to be used to assign an equilibrium distance, e.g. for use with
			:doc:`fix shake <fix_shake>`.

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

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

			:doc:`bond_style none <bond_none>`

			Default: none


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