Home > Applications > Horace > @sqw > d4d.m

# iFit/d4d

## PURPOSE

Create a 4D Horace dataset ('d4d')

## SYNOPSIS

This is a script file.

## DESCRIPTION

``` Create a 4D Horace dataset ('d4d')

Syntax:
>> w = d4d (filename)       % Create object from a file

>> w = d4d (din)            % Create from a structure with valid fields
% Structure array will output an array of objects

Or:
>> w = d4d (u1,p1,u2,p2,u3,p3,u4,p4)
% u1,u2,u3,u4 vectors define projection axes in rlu,
p1,p2,p3,p4 give start,step and finish for the axes
>> w = d4d (u0,...)         % u0 is offset of origin of dataset,
>> w = d4d (lattice,...)    % Give lattice parameters [a,b,c,alf,bet,gam]
>> w = d4d (lattice,u0,...) % Give u0 and lattice parameters

Input parameters in more detail:
----------------------------------
lattice Defines crystal lattice: [a,b,c,alpha,beta,gamma]
u0      Vector of form [h0,k0,l0] or [h0,k0,l0,en0]
that defines an origin point on the manifold of the dataset.
If en0 omitted, then assumed to be zero.
u1      Vector [h1,k1,l1] or [h1,k1,l1,en1] defining a plot axis. Must
not mix momentum and energy components e.g. [1,1,2], [0,2,0,0] and
[0,0,0,1] are valid; [1,0,0,1] is not.
p1      Vector of form [plo,delta_p,phi] that defines limits and step
in multiples of u1.
u2,p2   For second plot axis
u3,p3   For third plot axis
u4,p4   For fourth plot axis```

## CROSS-REFERENCE INFORMATION

This function calls:
This function is called by:

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