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doc/Section_commands.html
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@ -440,8 +440,8 @@ each style or click on the style itself for a full description:
package</A>.
</P>
<DIV ALIGN=center><TABLE BORDER=1 >
<TR ALIGN="center"><TD ><A HREF = "compute_ackland_atom.html">ackland/atom</A></TD><TD ><A HREF = "compute_ke_eff.html">ke/eff</A></TD><TD ><A HREF = "compute_ke_atom_eff.html">ke/atom/eff</A></TD><TD ><A HREF = "compute_meso_e_atom.html">meso_e/atom</A></TD><TD ><A HREF = "compute_meso_rho_atom.html">meso_rho/atom</A></TD><TD ><A HREF = "compute_meso_t_atom.html">meso_t/atom</A></TD></TR>
<TR ALIGN="center"><TD ><A HREF = "compute_temp_eff.html">temp/eff</A></TD><TD ><A HREF = "compute_temp_deform_eff.html">temp/deform/eff</A></TD><TD ><A HREF = "compute_temp_region_eff.html">temp/region/eff</A></TD><TD ><A HREF = "compute_temp_rotate.html">temp/rotate</A>
<TR ALIGN="center"><TD ><A HREF = "compute_ackland_atom.html">ackland/atom</A></TD><TD ><A HREF = "compute_basal_atom.html">basal/atom</A></TD><TD ><A HREF = "compute_ke_eff.html">ke/eff</A></TD><TD ><A HREF = "compute_ke_atom_eff.html">ke/atom/eff</A></TD><TD ><A HREF = "compute_meso_e_atom.html">meso_e/atom</A></TD><TD ><A HREF = "compute_meso_rho_atom.html">meso_rho/atom</A></TD></TR>
<TR ALIGN="center"><TD ><A HREF = "compute_meso_t_atom.html">meso_t/atom</A></TD><TD ><A HREF = "compute_temp_eff.html">temp/eff</A></TD><TD ><A HREF = "compute_temp_deform_eff.html">temp/deform/eff</A></TD><TD ><A HREF = "compute_temp_region_eff.html">temp/region/eff</A></TD><TD ><A HREF = "compute_temp_rotate.html">temp/rotate</A>
</TD></TR></TABLE></DIV>
<P>These are accelerated compute styles, which can be used if LAMMPS is

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@ -668,6 +668,7 @@ These are compute styles contributed by users, which can be used if
package"_Section_start.html#start_3.
"ackland/atom"_compute_ackland_atom.html,
"basal/atom"_compute_basal_atom.html,
"ke/eff"_compute_ke_eff.html,
"ke/atom/eff"_compute_ke_atom_eff.html,
"meso_e/atom"_compute_meso_e_atom.html,

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<HTML>
<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
</CENTER>
<HR>
<H3>compute basal/atom command
</H3>
<P><B>Syntax:</B>
</P>
<PRE>compute ID group-ID basal/atom
</PRE>
<UL><LI>ID, group-ID are documented in <A HREF = "compute.html">compute</A> command
<LI>basal/atom = style name of this compute command
</UL>
<P><B>Examples:</B>
</P>
<PRE>compute 1 all basal/atom
</PRE>
<P><B>Description:</B>
</P>
<P>Defines a computation that calculates the hexagonal close-packed "c"
lattice vector for each atom in the group. It does this by
calculating the normal unit vector to the basal plane for each atom.
The results enable efficient identification and characterization of
twins and grains in hexagonal close-packed structures.
</P>
<P>Details of the calculation are given in <A HREF = "#Barrett">(Barrett)</A>.
</P>
<P>The neighbor list needed to compute this quantity is constructed each
time the calculation is performed (i.e. each time a snapshot of atoms
is dumped). Thus it can be inefficient to compute/dump this quantity
too frequently or to have multiple compute/dump commands, each of
which computes this quantity.
</P>
<P>An example input script that uses this compute is provided
in examples/USER/misc/basal.
</P>
<P><B>Output info:</B>
</P>
<P>This compute calculates a per-atom array with 3 columns, which can be
accessed by indices 1-3 by any command that uses per-atom values from
a compute as input. See <A HREF = "Section_howto.html#howto_15">Section_howto
15</A> for an overview of LAMMPS output
options.
</P>
<P>The per-atom vector values are unitless since the 3 columns represent
components of a unit vector.
</P>
<P><B>Restrictions:</B>
</P>
<P>This compute is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the <A HREF = "Section_start.html#start_3">Making
LAMMPS</A> section for more info.
</P>
<P>The output of this compute will be meaningless unless the atoms are on
(or near) hcp lattice sites, since the calculation assumes a
well-defined basal plane.
</P>
<P><B>Related commands:</B>
</P>
<P><A HREF = "compute_centro_atom.html">compute centro/atom</A>, <A HREF = "compute_ackland_atom.html">compute
ackland/atom</A>
</P>
<P><B>Default:</B> none
</P>
<HR>
<A NAME = "Barrett"></A>
<P><B>(Barrett)</B> Barrett, Tschopp, El Kadiri, Scripta Mat. 66, p.666 (2012).
</P>
</HTML>

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"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
:link(lws,http://lammps.sandia.gov)
:link(ld,Manual.html)
:link(lc,Section_commands.html#comm)
:line
compute basal/atom command :h3
[Syntax:]
compute ID group-ID basal/atom :pre
ID, group-ID are documented in "compute"_compute.html command
basal/atom = style name of this compute command :ul
[Examples:]
compute 1 all basal/atom :pre
[Description:]
Defines a computation that calculates the hexagonal close-packed "c"
lattice vector for each atom in the group. It does this by
calculating the normal unit vector to the basal plane for each atom.
The results enable efficient identification and characterization of
twins and grains in hexagonal close-packed structures.
Details of the calculation are given in "(Barrett)"_#Barrett.
The neighbor list needed to compute this quantity is constructed each
time the calculation is performed (i.e. each time a snapshot of atoms
is dumped). Thus it can be inefficient to compute/dump this quantity
too frequently or to have multiple compute/dump commands, each of
which computes this quantity.
An example input script that uses this compute is provided
in examples/USER/misc/basal.
[Output info:]
This compute calculates a per-atom array with 3 columns, which can be
accessed by indices 1-3 by any command that uses per-atom values from
a compute as input. See "Section_howto
15"_Section_howto.html#howto_15 for an overview of LAMMPS output
options.
The per-atom vector values are unitless since the 3 columns represent
components of a unit vector.
[Restrictions:]
This compute is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the "Making
LAMMPS"_Section_start.html#start_3 section for more info.
The output of this compute will be meaningless unless the atoms are on
(or near) hcp lattice sites, since the calculation assumes a
well-defined basal plane.
[Related commands:]
"compute centro/atom"_compute_centro_atom.html, "compute
ackland/atom"_compute_ackland_atom.html
[Default:] none
:line
:link(Barrett)
[(Barrett)] Barrett, Tschopp, El Kadiri, Scripta Mat. 66, p.666 (2012).