orient.html
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orient.html
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			<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>
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			<H3>orient command
			</H3>
			<P><B>Syntax:</B>
			</P>
			<PRE>orient dim i j k
			</PRE>
			<UL><LI>dim = <I>x</I> or <I>y</I> or <I>z</I>
			<LI>i,j,k = orientation of lattice that is along box direction dim
			</UL>
			<P><B>Examples:</B>
			</P>
			<PRE>orient x 1 1 0
			orient y -1 1 0
			orient z 0 0 1
			</PRE>
			<P><B>Description:</B>
			</P>
			<P>Specify the orientation of a cubic lattice along simulation box
			directions <I>x</I> or <I>y</I> or <I>z</I>. These 3 basis vectors are used when the
			<A HREF = "create_atoms.html">create_atoms</A> command generates a lattice of atoms.
			</P>
			<P>The 3 basis vectors B1, B2, B3 must be mutually orthogonal and form a
			right-handed system such that B1 cross B2 is in the direction of B3.
			</P>
			<P>The basis vectors should be specified in an irreducible form (smallest
			possible integers), though LAMMPS does not check for this.
			</P>
			<P><B>Restrictions:</B> none
			</P>
			<P><B>Related commands:</B>
			</P>
			<P><A HREF = "origin.html">origin</A>, <A HREF = "create_atoms.html">create_atoms</A>
			</P>
			<P><B>Default:</B>
			</P>
			<PRE>orient x 1 0 0
			orient y 0 1 0
			orient z 0 0 1
			</PRE>
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