russelmann / hole-filling-liepa Goto Github PK

I'm interested in calling this code from C++ code.

Could you please show a C++ coding example how to manually set and fill the vertices and faces variables?
I'm unfamiliar with Eigen library and how to initialize them remains unclear.

btw, this is a very obtuse way of storing and passing simple vector data.

 Eigen::MatrixX3d vertices;
 Eigen::MatrixX3i faces;
 
 // how to fill vertices ??
 // how to fill faces ??

 vector<Eigen::VectorXi> boundary_loops;
 boundary_loops = hole_filling_liepa::find_boundary_loops(faces);

 Eigen::MatrixX3i area_patch;
 area_patch = hole_filling_liepa::fill_hole_liepa(vertices, faces, boundary_loops[0], "area" );

I tried to run this code on jupyter and it gave me the shown error.

I was able to get the code compiled as C++, however it runs extremely slow!
I tested both "angle" and "area" methods, and both are equally slow.

I tried filling a mesh with a single hole of about 250 boundary vertices, and the code hangs in the fill_hole_liepa() function when it enters the 3 nested loops (j,i,m). Here it slows down significantly.

Do you have any suggestions on speeding up the code for large holes with many boundary vertices?
Are there any parameters that can be set to adjust the "coarseness" of the fill?

I would like to fill the hole with triangles as large as possible, and not necessarily fill them with small triangles.

Thanks