in GraphSampling/meshPooler.h [65:80]
void set_must_include_center_lst_from_mesh(const Mesh & mesh){
cout<<"Start setting must_include_center_lst from mesh (the red points)\n";
_must_include_center_lst.clear();
int point_num = mesh.colors.size();
for(int i =0; i< point_num; i++)
{
Vec3<float> c = mesh.colors[i];
if((c[0]==0) && (c[1]==1) && (c[2]==0))
{
_must_include_center_lst.push_back(i);
}
}
}