text: Title: Fill in empty space in open mesh
  Body: ![image](https://user-images.githubusercontent.com/73815944/237020363-fba07136-ff66-4787-8415-8b23208da87a.png)
  Hi, I have open mesh and want to fill some space.
  So, I try to create points about empty space. And using reconstruct_surface() to create a mesh filled whit empty space.
  
  I want to get points for empty space through plane slicing (intersect_with_plane()) and create spline.
  
  The result is similar to the image below.
  ![image](https://user-images.githubusercontent.com/73815944/237020196-919d403f-6fe8-4aef-a767-dc1be08457a8.png)
  The line was recognized individually and there was no order for the direction, making it impossible to fill the empty space through the splines.
  
  ![image](https://user-images.githubusercontent.com/73815944/237018043-26922bea-222a-420c-8cb2-7222c929a2a9.png)
  Can we order multiple lines made through intercept_with_plane() ? Like the image above
  
  Or Is there any other way to fill in the empty space?