grid_trian.m

Triangular spherical quadrature grids, as per Appendix A.6 of (http://dx.doi.org/10.1016/j.jmr.2014.05.009).

Syntax

    [alps,bets,gams,whts,vorn]=grid_trian(type,n)

Parameters

     type - 'asg', 'sophe', or 'stoll'

        n - point count parameter

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 figure produced by grid_trian('stoll',10).

Notes

If no outputs are requested, a schematic is drawn.

See also

arclength.m, gaussleg.m, get_hull.m, grid_fibon.m, grid_igloo.m, grid_kron.m, grid_plot.m, grid_polar.m, grid_test.m, one_vcell_solidangle.m, repulsion.m, shrewd.m, sphtarea.m, sphtrsubd.m, vcell_solidangle.m, voitlander.m, voronoisphere.m, zfs_sampling.m, Kernel_utilities, Appendix I: powder grids

Version 2.6, authors: Ilya Kuprov