grid_igloo.m

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Igloo grid, as per Appendix A2 of (http://dx.doi.org/10.1016/j.jmr.2014.05.009).

Syntax

    [alps,bets,gams,whts,vorn]=grid_igloo(n_long)

Arguments

    n_long - number of longitudes in the grid

Outputs

     alps - alpha Euler angles of the grid (radians),
            zeros because these are two-angle grids

     bets - beta Euler angles of the grid (radians)

     gams - gamma Euler angles of the grid (radians)
 
     whts - Voronoi tessellation body angle weights

     vorn - a cell array of matrices containing the
            coordinates of the vertices of the Voro-
            noi polyhedra

Examples

Below is the Voronoi polyhedra diagram returned by grid_igloo(20).

Igloo 20.png

Notes

If no outputs are requested, a schematic is drawn.

See also

Integration grids, Appendix I: powder grids


Version 2.6, authors: Ilya Kuprov