message: correction of the number of edges per line
diff: @@ -2044,7 +2044,7 @@ namespace RINGMesh
  {
  test_and_initialize();
  ringmesh_assert( line < this->geomodel_.nb_lines() );
  - return line_edge_ptr_[line + 1];
  + return line_edge_ptr_[line + 1] - line_edge_ptr_[line];
  }
  template < index_t DIMENSION >
  