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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi All,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I was comiling the medical3.cxx class from vtk Examples. It
generates a 3D image of the head. I am trying to change the voxel size of
the image, but it only seems to be changing the size of the render window. The
Image Data remains unaffected. I have compiled it using vtk 4.2.6 and vtk 5.0
without any change in results.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have attached the code below. I have highlighted the
section where I have inserted code to change the spacing ( i.e. voxel size) of
the image. I have also tried using the SetSpacing() method of vtkImageData on
another example, but again all it seems to be doing is the changing the size
of the render window and not the image data. How do I get it to actually
act upon the image data itself and not just on the render window??</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any help will be appreciated.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Rohan</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>/*=========================================================================</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
Program: Visualization Toolkit</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
Module: $RCSfile: Medical3.cxx,v $</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
Language: C++</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
Date: $Date: 2002/12/02 </span></font><font size=2 color=green face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:green'>20:39:46</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'> $</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
Version: $Revision: 1.4 $</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> Copyright
(c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> All
rights reserved.</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> See
Copyright.txt or http://www.kitware.com/Copyright.htm for details.</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
This software is distributed WITHOUT ANY WARRANTY; without even </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>
PURPOSE. See the above copyright notice for more information.</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>=========================================================================*/</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// This example
reads a volume dataset, extracts two isosurfaces that</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// represent the
skin and bone, creates three orthogonal planes </span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// (saggital,
axial, coronal), and displays them.</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>//</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkRenderer.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkRenderWindow.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkRenderWindowInteractor.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkVolume16Reader.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkPolyDataMapper.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkActor.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkOutlineFilter.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkCamera.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkStripper.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkLookupTable.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkImageDataGeometryFilter.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkProperty.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkPolyDataNormals.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkContourFilter.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkImageData.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkImageMapToColors.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkImageActor.h"</span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>#include</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
"vtkImageReslice.h"</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue'>int</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
main (<font color=blue><span style='color:blue'>int</span></font> argc, <font
color=blue><span style='color:blue'>char</span></font> **argv)</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>{</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=blue><span style='color:blue'>if</span></font>
(argc < 2)</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> {</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> cout <<
"Usage: " << argv[0] << " DATADIR/headsq/quarter"
<< endl;</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=blue><span
style='color:blue'>return</span></font> 1;</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> }</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Create the renderer, the render window, and the interactor. The</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
renderer draws into the render window, the interactor enables</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
mouse- and keyboard-based interaction with the data within the</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
render window.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkRenderer *aRenderer = vtkRenderer::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkRenderWindow *renWin = vtkRenderWindow::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> renWin->AddRenderer(aRenderer);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> iren->SetRenderWindow(renWin);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
The following reader is used to read a series of 2D slices (images)</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
that compose the volume. The slice dimensions are set, and the</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
pixel spacing. The data Endianness must also be specified. The</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
reader usese the FilePrefix in combination with the slice number to</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
construct filenames using the format FilePrefix.%d. (In this case</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
the FilePrefix is the root name of the file: quarter.)</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkVolume16Reader *v16 = vtkVolume16Reader::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> v16->SetDataDimensions(64,64);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> v16->SetDataByteOrderToLittleEndian();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> v16->SetFilePrefix (argv[1]);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> v16->SetImageRange(1, 93);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> v16->SetDataSpacing (3.2, 3.2,
1.5);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
An isosurface, or contour value of 500 is known to correspond to</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
the skin of the patient. Once generated, a vtkPolyDataNormals</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
filter is is used to create normals for smooth surface shading</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
during rendering. The triangle stripper is used to create triangle</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
strips from the isosurface; these render much faster on may</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
systems.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkContourFilter *skinExtractor = vtkContourFilter::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinExtractor->SetInput(
v16->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinExtractor->SetValue(0,
500);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkPolyDataNormals *skinNormals = vtkPolyDataNormals::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinNormals->SetInput(skinExtractor->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinNormals->SetFeatureAngle(60.0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkStripper *skinStripper = vtkStripper::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinStripper->SetInput(skinNormals->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkPolyDataMapper *skinMapper = vtkPolyDataMapper::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinMapper->SetInput(skinStripper->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinMapper->ScalarVisibilityOff();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkActor *skin = vtkActor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skin->SetMapper(skinMapper);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skin->GetProperty()->SetDiffuseColor(1,
.49, .25);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skin->GetProperty()->SetSpecular(.3);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skin->GetProperty()->SetSpecularPower(20);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
An isosurface, or contour value of 1150 is known to correspond to</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
the skin of the patient. Once generated, a vtkPolyDataNormals</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
filter is is used to create normals for smooth surface shading</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
during rendering. The triangle stripper is used to create triangle</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
strips from the isosurface; these render much faster on may</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
systems.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkContourFilter *boneExtractor = vtkContourFilter::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneExtractor->SetInput((vtkDataSet
*) v16->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneExtractor->SetValue(0,
1150);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkPolyDataNormals *boneNormals = vtkPolyDataNormals::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneNormals->SetInput(boneExtractor->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneNormals->SetFeatureAngle(60.0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkStripper *boneStripper = vtkStripper::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneStripper->SetInput(boneNormals->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkPolyDataMapper *boneMapper = vtkPolyDataMapper::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneMapper->SetInput(boneStripper->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneMapper->ScalarVisibilityOff();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkActor *bone = vtkActor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bone->SetMapper(boneMapper);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bone->GetProperty()->SetDiffuseColor(1,
1, .9412);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
An outline provides context around the data.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkOutlineFilter *outlineData = vtkOutlineFilter::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> outlineData->SetInput((vtkDataSet
*) v16->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkPolyDataMapper *mapOutline = vtkPolyDataMapper::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> mapOutline->SetInput(outlineData->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkActor *outline = vtkActor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> outline->SetMapper(mapOutline);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> outline->GetProperty()->SetColor(0,0,0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Now we are creating three orthogonal planes passing through the</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
volume. Each plane uses a different texture map and therefore has</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
diferent coloration.</span></font></span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Start by creatin a black/white lookup table.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkLookupTable *bwLut = vtkLookupTable::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bwLut->SetTableRange (0,
2000);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bwLut->SetSaturationRange (0,
0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bwLut->SetHueRange (0, 0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bwLut->SetValueRange (0, 1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bwLut->Build();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Now create a lookup table that consists of the full hue circle</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
(from HSV).</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkLookupTable *hueLut = vtkLookupTable::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> hueLut->SetTableRange (0,
2000);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> hueLut->SetHueRange (0, 1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> hueLut->SetSaturationRange (1,
1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> hueLut->SetValueRange (1, 1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> hueLut->Build();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Finally, create a lookup table with a single hue but having a range</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
in the saturation of the hue.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkLookupTable *satLut = vtkLookupTable::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> satLut->SetTableRange (0,
2000);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> satLut->SetHueRange (.6, .6);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> satLut->SetSaturationRange (0,
1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> satLut->SetValueRange (1, 1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> satLut->Build();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>// Code inserted by me</span></font></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> vtkImageReslice *sagittalReslice
= vtkImageReslice::New();</span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> </span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> sagittalReslice->SetInput(v16->GetOutput());</span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> <font color=blue><span
style='color:blue'>float</span></font> sag_spacing[] = {2.0, 2.0, 5.0};</span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> <font color=blue><span
style='color:blue'>int</span></font> sag_extents[] = {0, 63, 0, 63, 0, 93};</span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> </span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> sagittalReslice->SetOutputExtent(sag_extents);</span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> sagittalReslice->SetOutputSpacing(sag_spacing);</span></font></b></p>
<p class=MsoNormal><b><font size=3 face="Courier New"><span style='font-size:
12.0pt;font-family:"Courier New";font-weight:bold'> sagittalReslice->Update();</span></font></b></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Create the first of the three planes. The filter vtkImageMapToColors</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
maps the data through the corresponding lookup table created above. The</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
vtkImageActor is a type of vtkProp and conveniently displays an image on</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
a single quadrilateral plane. It does this using texture mapping and as</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
a result is quite fast. (Note: the input image has to be unsigned char</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
values, which the vtkImageMapToColors produces.) Note also that by</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
specifying the DisplayExtent, the pipeline requests data of this extent</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
and the vtkImageMapToColors only processes a slice of data.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkImageMapToColors *saggitalColors = vtkImageMapToColors::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> saggitalColors->SetInput(sagittalReslice->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> saggitalColors->SetLookupTable(bwLut);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkImageActor *saggital = vtkImageActor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> saggital->SetInput(saggitalColors->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> saggital->SetDisplayExtent(32,32,
0,63, 0,92);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Create the second (axial) plane of the three planes. We use the</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
same approach as before except that the extent differs.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkImageMapToColors *axialColors = vtkImageMapToColors::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> axialColors->SetInput(v16->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> axialColors->SetLookupTable(hueLut);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkImageActor *axial = vtkImageActor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> axial->SetInput(axialColors->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> axial->SetDisplayExtent(0,63,
0,63, 46,46);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Create the third (coronal) plane of the three planes. We use </span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
the same approach as before except that the extent differs.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkImageMapToColors *coronalColors = vtkImageMapToColors::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> coronalColors->SetInput(v16->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> coronalColors->SetLookupTable(satLut);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkImageActor *coronal = vtkImageActor::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> coronal->SetInput(coronalColors->GetOutput());</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> coronal->SetDisplayExtent(0,63,
32,32, 0,92);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
It is convenient to create an initial view of the data. The</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
FocalPoint and Position form a vector direction. Later on</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
(ResetCamera() method) this vector is used to position the camera</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
to look at the data in this direction.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> vtkCamera *aCamera = vtkCamera::New();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aCamera->SetViewUp (0, 0, -1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aCamera->SetPosition (0, 1,
0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aCamera->SetFocalPoint (0, 0,
0);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aCamera->ComputeViewPlaneNormal();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Actors are added to the renderer. </span></font></span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// aRenderer->AddActor(outline);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->AddActor(saggital);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->AddActor(axial);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->AddActor(coronal);</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// aRenderer->AddActor(axial);</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// aRenderer->AddActor(coronal);</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// aRenderer->AddActor(skin);</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>// aRenderer->AddActor(bone);</span></font></p>
<p class=MsoNormal><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Turn off bone for this example.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bone->VisibilityOff();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Set skin to semi-transparent.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skin->GetProperty()->SetOpacity(0.5);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
An initial camera view is created. The Dolly() method moves </span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
the camera towards the FocalPoint, thereby enlarging the image.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->SetActiveCamera(aCamera);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->ResetCamera ();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aCamera->Dolly(1.5);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Set a background color for the renderer and set the size of the</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
render window (expressed in pixels).</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->SetBackground(1,1,1);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> renWin->SetSize(640, 480);</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
Note that when camera movement occurs (as it does in the Dolly()</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
method), the clipping planes often need adjusting. Clipping planes</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
consist of two planes: near and far along the view direction. The </span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
near plane clips out objects in front of the plane; the far plane</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
clips out objects behind the plane. This way only what is drawn</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
between the planes is actually rendered.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->ResetCameraClippingRange ();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
interact with data</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> iren->Initialize();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> iren->Start(); </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
It is important to delete all objects created previously to prevent</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
memory leaks. In this case, since the program is on its way to</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
exiting, it is not so important. But in applications it is</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=green><span style='color:green'>//
essential.</span></font></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> v16->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinExtractor->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinNormals->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinStripper->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skinMapper->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> skin->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneExtractor->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneNormals->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneStripper->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> boneMapper->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bone->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> outlineData->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> mapOutline->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> outline->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> bwLut->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> hueLut->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> satLut->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> saggitalColors->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> saggital->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> axialColors->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> axial->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> coronalColors->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> coronal->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aCamera->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> aRenderer->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> renWin->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> iren->Delete();</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'> <font color=blue><span style='color:blue'>return</span></font>
0;</span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>}</span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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