Read one or more spe files and a detector parameter file, and create an output sqw file. Normal use: >> accumulate_sqw (dummy, spe_file, par_file, sqw_file, efix, emode, alatt, angdeg,... u, v, psi, psi_planned, omega, dpsi, gl, gs, grid_size_in, urange_in) If want output diagnostics: >> [tmp_file,grid_size,urange] = gen_sqw (dummy, spe_file, par_file, sqw_file, efix, emode, alatt, angdeg,... u, v, psi, omega, dpsi, gl, gs, grid_size_in, urange_in) Input: (in the following, nfile = no. spe files) dummy Dummy sqw object - used only to ensure that this service routine was called spe_file Full file name of spe file - character string or cell array of character strings for more than one file par_file Full file name of detector parameter file (Tobyfit format) sqw_file Full file name of output sqw file efix Fixed energy (meV) [scalar or vector length nfile] emode Direct geometry=1, indirect geometry=2 [scalar] alatt Lattice parameters (Ang^-1) [row or column vector] angdeg Lattice angles (deg) [row or column vector] u First vector (1x3) defining scattering plane (r.l.u.) v Second vector (1x3) defining scattering plane (r.l.u.) psi Angle of u w.r.t. ki (deg) [scalar or vector length nfile] psi_planned As psi, but is a vector specifying the full range of planned measurements omega Angle of axis of small goniometer arc w.r.t. notional u (deg) [scalar or vector length nfile] dpsi Correction to psi (deg) [scalar or vector length nfile] gl Large goniometer arc angle (deg) [scalar or vector length nfile] gs Small goniometer arc angle (deg) [scalar or vector length nfile] grid_size_in [Optional] Scalar or row vector of grid dimensions. Default is [50,50,50,50] urange_in [Optional] Range of data grid for output. If not given, then uses smallest hypercuboid that encloses the whole data range that would be available if psi_planned were used. Output: -------- tmp_file List of temporary files grid_size Actual size of grid used (size is unity along dimensions where there is zero range of the data points) urange Actual range of grid % Overloaded methods: sqw/accumulate_sqw sqw/accumulate_sqw

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