Octree based Cubical Marching Squares algorithm

Hello, I would need an java library which allows me to do basic modifications on a octree (Adding/Removing Blocks/Spheres) and extract the mesh using the cubical marching squares algorithm described here: [login to view URL]~cyy/publications/papers/[login to view URL] The algorithm need to be able to: -Support tiling. -Support different levels of detail for each tile. As a brief layout, i would need following functions: Octree world=new Octree(float maximumTileSize); [login to view URL](Sphere(Vector3f(height,widht,depth),Vector3f position)); [login to view URL](Box(Vector3f(height,widht,depth),Vector3f position)); [login to view URL](Box(Vector3f(height,widht,depth),Vector3f position)); List tiles=[login to view URL](); [login to view URL](0).buildMesh(MeshInformation mesh, int maxDepth); I would provide the basic classes with the //todo functions.