commons-geometry-euclidean/src/test/resources/org/apache/commons/geometry/euclidean/threed/issue-1211.bsp

PolyhedronsSet
 plus  internal -1.0  0.0  0.0 -1.0  0.0  0.0
   minus internal  0.0  1.0  0.0  0.0  1.0  0.0
     minus internal  0.0  0.0  1.0  0.0  0.0  1.0
       minus internal  0.0  0.0 -1.0  0.0  0.0 -1.0
         minus internal  0.0 -1.0  0.0  0.0 -1.0  0.0
           minus internal  1.0  0.0  0.0  1.0  0.0  0.0
             minus leaf true
             plus  leaf false
           plus  leaf false
         plus  leaf false
       plus  leaf false
     plus  leaf false
   plus  leaf false