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Sliceomatic

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Sliceomatic

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19 Sep 2001 (Updated )

Volume slice visualization gui

Editor's Notes:

This file was selected as MATLAB Central Pick of the Week

sliceomaticsetdata(d,xmesh,ymesh,zmesh)
function appdata = sliceomaticsetdata(d,xmesh,ymesh,zmesh)
% SLICEOMATICSETDATA(rawdata) - Create the data used for
% sliceomatic in the appdata D.

% Copyright 2000, 2001, 2002, 2003, 2004, 2005 The MathWorks Inc

% Check variables
  error(nargchk(1,4,nargin))

  % Simplify the isonormals
  %as smooth3 is taking the most time for large volumes
  if size(d.data,1)*size(d.data,2)*size(d.data,3)>10^6
      disp('SKIPPING: Smoothing for IsoNormals...');
      disp('Do not use ISO surface controller for this large volume...');
      d.smooth=d.data;
  else
      disp('Smoothing for IsoNormals...');
      d.smooth=smooth3(d.data);  % ,'box',5);
  end
  d.reducenumbers=[floor(size(d.data,2)/20)...
                   floor(size(d.data,1)/20)...
                   floor(size(d.data,3)/20) ];
  d.reducenumbers(d.reducenumbers==0)=1;


  if nargin == 4
    % Reorder vectors: make them horizontal (prepare to flipdim)
    if size(xmesh,1)>size(xmesh,2) 
      xmesh=xmesh';
    end
    if size(ymesh,1)>size(ymesh,2) 
      ymesh=ymesh';
    end
    if size(zmesh,1)>size(zmesh,2) 
      zmesh=zmesh';
    end
    % Set axis orientation
    xdir='normal';
    ydir='normal';
    zdir='normal';
    if issorted(xmesh)~=1
      xmesh=flipdim(xmesh,2);
      xdir='reverse';
      d.xlim = [xmesh(1) xmesh(end)];
      xmesh=flipdim(xmesh,2);
    else
      d.xlim = [xmesh(1) xmesh(end)];
    end
    if issorted(ymesh)~=1
      ymesh=flipdim(ymesh,2);
      ydir='reverse';
      d.ylim = [ymesh(1) ymesh(end)];
      ymesh=flipdim(ymesh,2);
    else
      d.ylim = [ymesh(1) ymesh(end)];
    end
    % This should not be the case for medical images
    if issorted(zmesh)~=1
      zmesh=flipdim(zmesh,2);
      zdir='reverse';
      d.zlim = [zmesh(1) zmesh(end)];
      zmesh=flipdim(zmesh,2);
    else
      d.zlim = [zmesh(1) zmesh(end)];
    end
    
    % Vol vis suite takes numbers in X/Y form.
    ly = 1:d.reducenumbers(1):size(d.data,2);
    lx = 1:d.reducenumbers(2):size(d.data,1);
    lz = 1:d.reducenumbers(3):size(d.data,3);
    
    for i = 1:length(ly)
      ly(i) = xmesh(ly(i));
    end
    for i = 1:length(lx)
      lx(i) = ymesh(lx(i));
    end
    for i = 1:length(lz)
      lz(i) = zmesh(lz(i));
    end
    
    d.reducelims={ ly lx lz };
    disp('Generating reduction volume...');
    d.reduce= reducevolume(d.data,d.reducenumbers);
    d.reducesmooth=smooth3(d.reduce,'box',5);
    % Set axis
    %d.xlim = [xmesh(1) xmesh(end)];
    %d.ylim = [ymesh(1) ymesh(end)];
    %d.zlim = [zmesh(1) zmesh(end)];
    d.xmesh = xmesh;
    d.ymesh = ymesh;
    d.zmesh = zmesh;
    d.xdir = xdir;
    d.ydir = ydir;
    d.zdir = zdir;
    
  else
    % Vol vis suite takes numbers in X/Y form.
    ly = 1:d.reducenumbers(1):size(d.data,2);
    lx = 1:d.reducenumbers(2):size(d.data,1);
    lz = 1:d.reducenumbers(3):size(d.data,3);
    
    d.reducelims={ ly lx lz };
    disp('Generating reduction volume...');
    d.reduce= reducevolume(d.data,d.reducenumbers);
    d.reducesmooth=smooth3(d.reduce,'box',5);

    d.xlim = [1 size(d.data,2)];
    d.ylim = [1 size(d.data,1)];
    d.zlim = [1 size(d.data,3)];
    d.xmesh = nan;
    d.ymesh = nan;
    d.zmesh = nan;
    d.xdir = 'normal';
    d.ydir = 'normal';
    d.zdir = 'normal';
  end
  
  appdata = d;

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