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update documentation for modifying LAMMPS to reflect changes to Thermo class

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Axel Kohlmeyer
2022-03-19 18:06:56 -04:00
parent 74103b141a
commit c70b0b39ac
2 changed files with 57 additions and 29 deletions
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doc/src/Modify_variable.rst
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@ -1,8 +1,8 @@
Variable options
================
There is one class that computes and stores :doc:`variable <variable>`
information in LAMMPS; see the file variable.cpp. The value
The ``Variable`` class computes and stores :doc:`variable <variable>`
information in LAMMPS; see the file ``variable.cpp``. The value
associated with a variable can be periodically printed to the screen
via the :doc:`print <print>`, :doc:`fix print <fix_print>`, or
:doc:`thermo_style custom <thermo_style>` commands. Variables of style
@ -19,21 +19,22 @@ of arguments:
compute values = c_mytemp[0], c_thermo_press[3], ...
Adding keywords for the :doc:`thermo_style custom <thermo_style>`
command (which can then be accessed by variables) is discussed on the
:doc:`Modify thermo <Modify_thermo>` doc page.
command (which can then be accessed by variables) is discussed in the
:doc:`Modify thermo <Modify_thermo>` documentation.
Adding a new math function of one or two arguments can be done by
editing one section of the Variable::evaluate() method. Search for
editing one section of the ``Variable::evaluate()`` method. Search for
the word "customize" to find the appropriate location.
Adding a new group function can be done by editing one section of the
Variable::evaluate() method. Search for the word "customize" to find
the appropriate location. You may need to add a new method to the
Group class as well (see the group.cpp file).
``Variable::evaluate()`` method. Search for the word "customize" to
find the appropriate location. You may need to add a new method to the
Group class as well (see the ``group.cpp`` file).
Accessing a new atom-based vector can be done by editing one section
of the Variable::evaluate() method. Search for the word "customize"
to find the appropriate location.
Adding new :doc:`compute styles <compute>` (whose calculated values can
then be accessed by variables) is discussed on the :doc:`Modify compute <Modify_compute>` doc page.
then be accessed by variables) is discussed in the :doc:`Modify compute
<Modify_compute>` documentation.