Incremental local boolean operation

[gsjoey]

Hello!

I would like to implement incremental boolean operations, much like obtaining the union of several mesh balls one by one. However, we've observed that after doing hundred times of boolean operations, the resulting union mesh becomes larger. If we still use the whole union mesh to do boolean operation with new mesh ball, the computation time will become longer. Therefore, we're wondering if it's possible to utilize a part of union mesh for boolean operations with the new one, as shown in the picture, the new mesh ball with green edges, we want to pick up a part of union-ed mesh in the red box to do boolean operation. Are there any functions in the CGAL library that can assist with this?

And this is the mesh data we used: obj.zip

Thank you!