2016-05-10 01:33:12 +08:00
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< p class = "caption" > < span class = "caption-text" > User Documentation< / span > < / p >
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< li class = "toctree-l1" > < a class = "reference internal" href = "Section_intro.html" > 1. Introduction< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_start.html" > 2. Getting Started< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_commands.html" > 3. Commands< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_packages.html" > 4. Packages< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_accelerate.html" > 5. Accelerating LAMMPS performance< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_howto.html" > 6. How-to discussions< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_example.html" > 7. Example problems< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_perf.html" > 8. Performance & scalability< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_tools.html" > 9. Additional tools< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_modify.html" > 10. Modifying & extending LAMMPS< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_python.html" > 11. Python interface to LAMMPS< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_errors.html" > 12. Errors< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "Section_history.html" > 13. Future and history< / a > < / li >
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< p class = "caption" > < span class = "caption-text" > Index< / span > < / p >
< ul class = "current" >
< li class = "toctree-l1" > < a class = "reference internal" href = "tutorials.html" > Tutorials< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "commands.html" > Commands< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "fixes.html" > Fixes< / a > < / li >
< li class = "toctree-l1 current" > < a class = "reference internal" href = "computes.html" > Computes< / a > < ul class = "current" >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ackland_atom.html" > compute ackland/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_angle.html" > compute angle command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_angle_local.html" > compute angle/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_angmom_chunk.html" > compute angmom/chunk command< / a > < / li >
< li class = "toctree-l2 current" > < a class = "current reference internal" href = "#" > compute basal/atom command< / a > < ul >
< li class = "toctree-l3" > < a class = "reference internal" href = "#syntax" > Syntax< / a > < / li >
< li class = "toctree-l3" > < a class = "reference internal" href = "#examples" > Examples< / a > < / li >
< li class = "toctree-l3" > < a class = "reference internal" href = "#description" > Description< / a > < / li >
< li class = "toctree-l3" > < a class = "reference internal" href = "#restrictions" > Restrictions< / a > < / li >
< li class = "toctree-l3" > < a class = "reference internal" href = "#related-commands" > Related commands< / a > < / li >
< / ul >
< / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_body_local.html" > compute body/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_bond.html" > compute bond command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_bond_local.html" > compute bond/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_centro_atom.html" > compute centro/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_chunk_atom.html" > compute chunk/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_cluster_atom.html" > compute cluster/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_cna_atom.html" > compute cna/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_com.html" > compute com command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_com_chunk.html" > compute com/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_contact_atom.html" > compute contact/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_coord_atom.html" > compute coord/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_damage_atom.html" > compute damage/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_dihedral.html" > compute dihedral command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_dihedral_local.html" > compute dihedral/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_dilatation_atom.html" > compute dilatation/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_dipole_chunk.html" > compute dipole/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_displace_atom.html" > compute displace/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_dpd.html" > compute dpd command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_dpd_atom.html" > compute dpd/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_erotate_asphere.html" > compute erotate/asphere command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_erotate_rigid.html" > compute erotate/rigid command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_erotate_sphere.html" > compute erotate/sphere command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_erotate_sphere_atom.html" > compute erotate/sphere/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_event_displace.html" > compute event/displace command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_fep.html" > compute fep command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_group_group.html" > compute group/group command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_gyration.html" > compute gyration command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_gyration_chunk.html" > compute gyration/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_heat_flux.html" > compute heat/flux command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_hexorder_atom.html" > compute hexorder/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_improper.html" > compute improper command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_improper_local.html" > compute improper/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_inertia_chunk.html" > compute inertia/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ke.html" > compute ke command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ke_atom.html" > compute ke/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ke_atom_eff.html" > compute ke/atom/eff command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ke_eff.html" > compute ke/eff command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ke_rigid.html" > compute ke/rigid command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_meso_e_atom.html" > compute meso/e/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_meso_rho_atom.html" > compute meso/rho/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_meso_t_atom.html" > compute meso/t/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_msd.html" > compute msd command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_msd_chunk.html" > compute msd/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_msd_nongauss.html" > compute msd/nongauss command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_omega_chunk.html" > compute omega/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_orientorder_atom.html" > compute orientorder/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_pair.html" > compute pair command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_pair_local.html" > compute pair/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_pe.html" > compute pe command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_pe_atom.html" > compute pe/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_plasticity_atom.html" > compute plasticity/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_pressure.html" > compute pressure command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_property_atom.html" > compute property/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_property_chunk.html" > compute property/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_property_local.html" > compute property/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_rdf.html" > compute rdf command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_reduce.html" > compute reduce command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_reduce.html#compute-reduce-region-command" > compute reduce/region command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_rigid_local.html" > compute rigid/local command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_saed.html" > compute saed command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_slice.html" > compute slice command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_contact_radius.html" > compute smd/contact/radius command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_damage.html" > compute smd/damage command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_hourglass_error.html" > compute smd/hourglass/error command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_internal_energy.html" > compute smd/internal/energy command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_plastic_strain.html" > compute smd/plastic/strain command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_plastic_strain_rate.html" > compute smd/plastic/strain/rate command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_rho.html" > compute smd/rho command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_defgrad.html" > compute smd/tlsph/defgrad command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_dt.html" > compute smd/tlsph/dt command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_num_neighs.html" > compute smd/tlsph/num/neighs command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_shape.html" > compute smd/tlsph/shape command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_strain.html" > compute smd/tlsph/strain command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_strain_rate.html" > compute smd/tlsph/strain/rate command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_tlsph_stress.html" > compute smd/tlsph/stress command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_triangle_mesh_vertices.html" > compute smd/triangle/mesh/vertices< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_ulsph_num_neighs.html" > compute smd/ulsph/num/neighs command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_ulsph_strain.html" > compute smd/ulsph/strain command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_ulsph_strain_rate.html" > compute smd/ulsph/strain/rate command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_ulsph_stress.html" > compute smd/ulsph/stress command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_smd_vol.html" > compute smd/vol command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_sna_atom.html" > compute sna/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_sna_atom.html#compute-snad-atom-command" > compute snad/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_sna_atom.html#compute-snav-atom-command" > compute snav/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_stress_atom.html" > compute stress/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_tally.html" > compute force/tally command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_tally.html#compute-heat-flux-tally-command" > compute heat/flux/tally command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_tally.html#compute-pe-tally-command" > compute pe/tally command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_tally.html#compute-pe-mol-tally-command" > compute pe/mol/tally command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_tally.html#compute-stress-tally-command" > compute stress/tally command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp.html" > compute temp command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp.html#compute-temp-kk-command" > compute temp/kk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_asphere.html" > compute temp/asphere command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_body.html" > compute temp/body command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_chunk.html" > compute temp/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_com.html" > compute temp/com command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_cs.html" > compute temp/cs command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_deform.html" > compute temp/deform command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_deform_eff.html" > compute temp/deform/eff command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_drude.html" > compute temp/drude command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_eff.html" > compute temp/eff command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_partial.html" > compute temp/partial command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_profile.html" > compute temp/profile command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_ramp.html" > compute temp/ramp command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_region.html" > compute temp/region command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_region_eff.html" > compute temp/region/eff command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_rotate.html" > compute temp/rotate command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_temp_sphere.html" > compute temp/sphere command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_ti.html" > compute ti command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_torque_chunk.html" > compute torque/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_vacf.html" > compute vacf command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_vcm_chunk.html" > compute vcm/chunk command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_voronoi_atom.html" > compute voronoi/atom command< / a > < / li >
< li class = "toctree-l2" > < a class = "reference internal" href = "compute_xrd.html" > compute xrd command< / a > < / li >
< / ul >
< / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "pairs.html" > Pair Styles< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "bonds.html" > Bonds< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "angles.html" > Angle Styles< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "dihedrals.html" > Dihedral Styles< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "impropers.html" > Improper Styles< / a > < / li >
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2016-05-10 01:33:12 +08:00
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< li > compute basal/atom command< / li >
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< span id = "index-0" > < / span > < h1 > compute basal/atom command< / h1 >
< div class = "section" id = "syntax" >
< h2 > Syntax< / h2 >
< div class = "highlight-default" > < div class = "highlight" > < pre > < span > < / span > < span class = "n" > compute< / span > < span class = "n" > ID< / span > < span class = "n" > group< / span > < span class = "o" > -< / span > < span class = "n" > ID< / span > < span class = "n" > basal< / span > < span class = "o" > /< / span > < span class = "n" > atom< / span >
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< li > ID, group-ID are documented in < a class = "reference internal" href = "compute.html" > < span class = "doc" > compute< / span > < / a > command< / li >
< li > basal/atom = style name of this compute command< / li >
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< h2 > Examples< / h2 >
< div class = "highlight-default" > < div class = "highlight" > < pre > < span > < / span > < span class = "n" > compute< / span > < span class = "mi" > 1< / span > < span class = "nb" > all< / span > < span class = "n" > basal< / span > < span class = "o" > /< / span > < span class = "n" > atom< / span >
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< h2 > Description< / h2 >
< 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 > The output of the compute is thus the 3 components of a unit vector
associdate with each atom. The components are set to 0.0 for
atoms not in the group.< / p >
< p > Details of the calculation are given in < a class = "reference internal" href = "#barrett" > < span class = "std std-ref" > (Barrett)< / span > < / 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 > < strong > Output info:< / strong > < / 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
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a compute as input. See < a class = "reference internal" href = "Section_howto.html#howto-15" > < span class = "std std-ref" > Section 6.15< / span > < / a > for an overview of LAMMPS output
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options.< / p >
< p > The per-atom vector values are unitless since the 3 columns represent
components of a unit vector.< / p >
< / div >
< div class = "section" id = "restrictions" >
< h2 > Restrictions< / h2 >
< p > This compute is part of the USER-MISC package. It is only enabled if
LAMMPS was built with that package. See the < a class = "reference internal" href = "Section_start.html#start-3" > < span class = "std std-ref" > Making LAMMPS< / span > < / 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 >
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< div class = "section" id = "related-commands" >
< h2 > Related commands< / h2 >
< p > < a class = "reference internal" href = "compute_centro_atom.html" > < span class = "doc" > compute centro/atom< / span > < / a > , < a class = "reference internal" href = "compute_ackland_atom.html" > < span class = "doc" > compute ackland/atom< / span > < / a > < / p >
< p > < strong > Default:< / strong > none< / p >
< hr class = "docutils" / >
< p id = "barrett" > < strong > (Barrett)< / strong > Barrett, Tschopp, El Kadiri, Scripta Mat. 66, p.666 (2012).< / p >
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