old_contents: import {ccw}         from '../counter-clockwise';
  import {centroid}    from '../centroid';
  import {point as pt} from './point';
  
  export function cube(cubes, options, point, angles){
      var _cubes = [];
      for (var i = cubes.length - 1; i >= 0; i--) {
  
          var cube = cubes[i];
  
          var vertices = pt([
              cube[0],
              cube[1],
              cube[2],
              cube[3],
              cube[4],
              cube[5],
              cube[6],
              cube[7]
          ], options, point, angles);
  
          var v1 = vertices[0];
          var v2 = vertices[1];
          var v3 = vertices[2];
          var v4 = vertices[3];
          var v5 = vertices[4];
          var v6 = vertices[5];
          var v7 = vertices[6];
          var v8 = vertices[7];
  
          // TODO
          var front  = [v1, v2, v3, v4];
          var back   = [v8, v7, v6, v5];
          var left   = [v5, v6, v2, v1];
          var right  = [v4, v3, v7, v8];
          var bottom = [v5, v1, v4, v8];
          var top    = [v2, v6, v7, v3];
  
          front.centroid  = centroid(front);
          back.centroid   = centroid(back);
          left.centroid   = centroid(left);
          right.centroid  = centroid(right);
          top.centroid    = centroid(top);
          bottom.centroid = centroid(bottom);
  
          front.ccw  = ccw(front);
          back.ccw   = ccw(back);
          left.ccw   = ccw(left);
          right.ccw  = ccw(right);
          top.ccw    = ccw(top);
          bottom.ccw = ccw(bottom);
  
          front.face  = 'front';
          back.face   = 'back';
          left.face   = 'left';
          right.face  = 'right';
          top.face    = 'top';
          bottom.face = 'bottom';
  
          var _cube = [front, back, left, right, top, bottom];
  
          // TODO
          // _cube.centroid = cube.centroid || centroid(cube);
          _cubes.push(_cube);
      }
      return _cubes;
  }
  
new_contents: import {ccw}         from '../counter-clockwise';
  import {centroid}    from '../centroid';
  import {point as pt} from './point';
  
  export function cube(cubes, options, point, angles){
      var _cubes = [];
      for (var i = cubes.length - 1; i >= 0; i--) {
  
          var cube = cubes[i];
  
          var vertices = pt([
              cube[0],
              cube[1],
              cube[2],
              cube[3],
              cube[4],
              cube[5],
              cube[6],
              cube[7]
          ], options, point, angles);
  
          var v1 = vertices[0];
          var v2 = vertices[1];
          var v3 = vertices[2];
          var v4 = vertices[3];
          var v5 = vertices[4];
          var v6 = vertices[5];
          var v7 = vertices[6];
          var v8 = vertices[7];
  
          var front  = [v1, v2, v3, v4];
          var back   = [v8, v7, v6, v5];
          var left   = [v5, v6, v2, v1];
          var right  = [v4, v3, v7, v8];
          var bottom = [v5, v1, v4, v8];
          var top    = [v2, v6, v7, v3];
  
          front.centroid  = centroid(front);
          back.centroid   = centroid(back);
          left.centroid   = centroid(left);
          right.centroid  = centroid(right);
          top.centroid    = centroid(top);
          bottom.centroid = centroid(bottom);
  
          front.ccw  = ccw(front);
          back.ccw   = ccw(back);
          left.ccw   = ccw(left);
          right.ccw  = ccw(right);
          top.ccw    = ccw(top);
          bottom.ccw = ccw(bottom);
  
          front.face  = 'front';
          back.face   = 'back';
          left.face   = 'left';
          right.face  = 'right';
          top.face    = 'top';
          bottom.face = 'bottom';
  
          var _cube = [front, back, left, right, top, bottom];
  
          // TODO
          // _cube.centroid = cube.centroid || centroid(cube);
          _cubes.push(_cube);
      }
      return _cubes;
  }
  
subject: remove todo