Triangular Mesh Refinement: [ET_table,EV_table,ETV_index]=edge_tangents(V,Ne) - File Exchange

Code covered by the BSD License

Fnew=makenewfacelist(F,HT_ind... Combine the edge middle points and old vertex points to faces.
Ne=vertex_neighbours(FV) This function VERTEX_NEIGHBOURS will search in a face list for all
Ne=vertex_neighbours_double(F... Neighbourh cell array
[ET_table,EV_table,ETV_index]...
[ET_table,EV_table,ETV_index]... Edge tangents table
[FV2]=refinepatch(FV) This function "refinepatch" refines a triangular mesh with
[Vout,HT_index, HT_values]=ma...
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from Triangular Mesh Refinement by Dirk-Jan Kroon
This function will refine a triangular mesh with 4-split spline interpolation

[ET_table,EV_table,ETV_index]=edge_tangents(V,Ne)
function [ET_table,EV_table,ETV_index]=edge_tangents(V,Ne) [ET_table,EV_table,ETV_index]=edge_tangents_double(double(V),Ne);