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lammps/doc/_sources/compute_smd_triangle_mesh_vertices.txt
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compute_smd_triangle_mesh_vertices.txt
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compute smd/triangle/mesh/vertices
==================================
Syntax
""""""
.. parsed-literal::
compute ID group-ID smd/triangle/mesh/vertices
* ID, group-ID are documented in :doc:`compute <compute>` command
* smd/triangle/mesh/vertices = style name of this compute command
Examples
""""""""
.. parsed-literal::
compute 1 all smd/triangle/mesh/vertices
Description
"""""""""""
Define a computation that returns the coordinates of the vertices
corresponding to the triangle-elements of a mesh created by the `fix smd/wall_surface <ls_>`_.
See `this PDF guide <USER/smd/SMD_LAMMPS_userguide.pdf>`_ to using Smooth
Mach Dynamics in LAMMPS.
**Output info:**
This compute returns a per-particle vector of vectors, which can be
accessed by any command that uses per-particle values from a compute as
input. See :ref:`How-to discussions, section 6.15 <howto_15>`
for an overview of LAMMPS output options.
The per-particle vector has nine entries, (x1/y1/z1), (x2/y2/z2), and
(x3/y3/z3) corresponding to the first, second, and third vertex of
each triangle.
It is only meaningful to use this compute for a group of particles
which is created via the `fix smd/wall_surface <ls_>`_ command.
The output of this compute can be used with the dump2vtk_tris tool to
generate a VTK representation of the smd/wall_surace mesh for
visualization purposes.
The values will be given in :doc:`units <units>` of distance.
Restrictions
""""""""""""
This compute is part of the USER-SMD package. It is only enabled if
LAMMPS was built with that package. See the :ref:`Making LAMMPS <start_3>` section for more info.
Related commands
""""""""""""""""
:doc:`compute smd/move/tri/surf <fix_smd_move_triangulated_surface>`,
`compute smd/wall/surface <ls_>`_
**Default:** none
.. _lws: http://lammps.sandia.gov
.. _ld: Manual.html
.. _lc: Section_commands.html#comm
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