>> load Head_reduce4_4_1_crop
>> whos
  Name        Size                   Bytes  Class

  Heads     216x190x27             8864640  double array
  Xs        216x190x27             8864640  double array
  Ys        216x190x27             8864640  double array
  Zs        216x190x27             8864640  double array
  ans         1x444                    888  char array

Grand total is 4432764 elements using 35459448 bytes

>> clearslice(Xs,Ys,Zs,Heads, 500,500,15, 25);colormap(bone);
>> axis([span(Xs),span(Ys),span(Zs)])
>> [cX,cY,cZ]=cylinder(ones(20,1),40);
>> figure
>> surf(cX,cY,cZ)
>> cZ=cZ*-27;cX=cX*150+500;cY=cY*150+500;
>> figure(1)
>> hold on;clearslice(Xs,Ys,Zs,Heads, cX,cY,cZ, 25);colormap(bone);
>> clear
>> load ISOhead_025
>> whos
  Name        Size                   Bytes  Class

  fv_25       1x1                  1588664  struct array

Grand total is 198554 elements using 1588664 bytes

>> close all
>> visiso(fv_25)
ans =
    3.0017
>> camlight(-10, -10)
>> exit