NavigationInfo{ type "EXAMINE" }
  Viewpoint{ fieldOfView .2 position 0 0 40 description "[100]"}
  Viewpoint{ fieldOfView .2 position 28 0 28 orientation 0 1 0 .785 description "[110]"}
  Viewpoint{ fieldOfView .2 position 23 23 23 orientation -1 1 0 .955 description "[111]"}
  DEF XForm Transform{ children[] }
  Script{
    field SFNode XForm USE XForm
    directOutput TRUE
  url ["javascript:
  function initialize() { 
    var i,j,k, n=2,  is=1,js,ks,BY, sum, Str = '';
    for ( i= -n; i<= n; i++) {
      js = 1; sj='';
      for ( j= -n; j<= n; j++) {
        ks = 1; BY=1; sk = '';
        for ( k= -3; k<= 3; k++) {
          sum = is+js+ks;
          if (sum == 3) sk += 'Cu{ trans '+i+' '+k+' '+j+'}';
          if ( (sum == 1)&& !(((k == 3)||(k == -3))&&(is < 0))&&
            !((k == 0)&&(ks < 0)) )
            sk += 'O{ trans '+i+' '+k+' '+j+'}';
          if (sum == -3){ BY = -BY;
            if (BY < 0) sk += 'Ba{ trans '+i+' '+k+' '+j+'}';
            else  sk += 'Y{ trans '+i+' '+k+' '+j+'}';
          }
          ks = -ks;}
        sj += sk; js = -js;}
      Str += sj; is = -is;}
    XForm.addChildren = Browser.createVrmlFromString(
  'PROTO Cu[ field SFVec3f trans 0 0 0]{'+
  'Transform{ translation IS trans children[ '+
  'Shape{ appearance Appearance{ material Material{ diffuseColor 1 1 0}}'+
  'geometry Sphere{ radius 0.15 }}]}}'+
  'PROTO Ba[ field SFVec3f trans 0 0 0]{'+
  'Transform{ translation IS trans children[ '+
  'Shape{ appearance Appearance{ material Material{ diffuseColor 0 0 1}}'+
  'geometry Sphere{ radius 0.3 }}]}}'+
  'PROTO Y[ field SFVec3f trans 0 0 0]{'+
  'Transform{ translation IS trans children[ '+
  'Shape{ appearance Appearance{ material Material{ diffuseColor 1 0 0}}'+
  'geometry Sphere{ radius 0.25 }}]}}'+
  'PROTO O[ field SFVec3f trans 0 0 0]{'+
  'Transform{ translation IS trans children[ '+
  'Shape{ appearance Appearance{ material Material{ diffuseColor 1 1 1}}'+
  'geometry Sphere{ radius 0.2 }}]}}' + Str );
  }"]
  }