IO/vtkVolume16Reader.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkVolume16Reader.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00078 #ifndef __vtkVolume16Reader_h
00079 #define __vtkVolume16Reader_h
00080 
00081 #include <stdio.h>
00082 #include "vtkVolumeReader.h"
00083 #include "vtkTransform.h"
00084 class vtkUnsignedCharArray;
00085 class vtkUnsignedShortArray;
00086 
00087 #define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
00088 #define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
00089 
00090 class VTK_IO_EXPORT vtkVolume16Reader : public vtkVolumeReader
00091 {
00092 public:
00093   vtkTypeMacro(vtkVolume16Reader,vtkVolumeReader);
00094   void PrintSelf(ostream& os, vtkIndent indent);
00095 
00099   static vtkVolume16Reader *New();
00100 
00102 
00103   vtkSetVector2Macro(DataDimensions,int);
00104   vtkGetVectorMacro(DataDimensions,int,2);
00106 
00108 
00110   vtkSetMacro(DataMask,unsigned short);
00111   vtkGetMacro(DataMask,unsigned short);
00113 
00115 
00116   vtkSetMacro(HeaderSize,int);
00117   vtkGetMacro(HeaderSize,int);
00119 
00121 
00131   void SetDataByteOrderToBigEndian();
00132   void SetDataByteOrderToLittleEndian();
00133   int GetDataByteOrder();
00134   void SetDataByteOrder(int);
00135   const char *GetDataByteOrderAsString();
00137 
00139 
00140   vtkSetMacro(SwapBytes,int);
00141   vtkGetMacro(SwapBytes,int);
00142   vtkBooleanMacro(SwapBytes,int);
00144 
00146 
00149   vtkSetObjectMacro(Transform,vtkTransform);
00150   vtkGetObjectMacro(Transform,vtkTransform);
00152 
00154   vtkStructuredPoints *GetImage(int ImageNumber);
00155 
00156 protected:
00157   vtkVolume16Reader();
00158   ~vtkVolume16Reader();
00159 
00160   void Execute();
00161   void ExecuteInformation();
00162   int   DataDimensions[2];
00163   unsigned short DataMask;
00164   int   SwapBytes;
00165   int   HeaderSize;
00166   vtkTransform *Transform;
00167 
00168   void TransformSlice (unsigned short *slice, unsigned short *pixels, int k, int dimensions[3], int bounds[3]);
00169   void ComputeTransformedDimensions(int dimensions[3]);
00170   void ComputeTransformedBounds(int bounds[6]);
00171   void ComputeTransformedSpacing(float Spacing[3]);
00172   void ComputeTransformedOrigin(float origin[3]);
00173   void AdjustSpacingAndOrigin(int dimensions[3], float Spacing[3], float origin[3]);
00174   vtkUnsignedShortArray *ReadImage(int ImageNumber);
00175   vtkUnsignedShortArray *ReadVolume(int FirstImage, int LastImage);
00176   int Read16BitImage(FILE *fp, unsigned short *pixels, int xsize, int ysize, 
00177                      int skip, int swapBytes);
00178 
00179 private:
00180   vtkVolume16Reader(const vtkVolume16Reader&);  // Not implemented.
00181   void operator=(const vtkVolume16Reader&);  // Not implemented.
00182 };
00183 
00184 #endif
00185 
00186