graphics/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 =========================================================================*/
00077 #ifndef __vtkVolume16Reader_h
00078 #define __vtkVolume16Reader_h
00079 
00080 #include <stdio.h>
00081 #include "vtkVolumeReader.h"
00082 #include "vtkTransform.h"
00083 
00084 #define VTK_FILE_BYTE_ORDER_BIG_ENDIAN 0
00085 #define VTK_FILE_BYTE_ORDER_LITTLE_ENDIAN 1
00086 
00087 class VTK_EXPORT vtkVolume16Reader : public vtkVolumeReader
00088 {
00089 public:
00090   vtkTypeMacro(vtkVolume16Reader,vtkVolumeReader);
00091   void PrintSelf(ostream& os, vtkIndent indent);
00092 
00096   static vtkVolume16Reader *New();
00097 
00099   vtkSetVector2Macro(DataDimensions,int);
00100   vtkGetVectorMacro(DataDimensions,int,2);
00101 
00104   vtkSetMacro(DataMask,unsigned short);
00105   vtkGetMacro(DataMask,unsigned short);
00106 
00108   vtkSetMacro(HeaderSize,int);
00109   vtkGetMacro(HeaderSize,int);
00110 
00121   void SetDataByteOrderToBigEndian();
00122   void SetDataByteOrderToLittleEndian();
00123   int GetDataByteOrder();
00124   void SetDataByteOrder(int);
00125   const char *GetDataByteOrderAsString();
00126 
00128   vtkSetMacro(SwapBytes,int);
00129   vtkGetMacro(SwapBytes,int);
00130   vtkBooleanMacro(SwapBytes,int);
00131 
00135   vtkSetObjectMacro(Transform,vtkTransform);
00136   vtkGetObjectMacro(Transform,vtkTransform);
00137 
00139   vtkStructuredPoints *GetImage(int ImageNumber);
00140 
00141 protected:
00142   vtkVolume16Reader();
00143   ~vtkVolume16Reader();
00144   vtkVolume16Reader(const vtkVolume16Reader&) {};
00145   void operator=(const vtkVolume16Reader&) {};
00146 
00147   void Execute();
00148   void ExecuteInformation();
00149   int   DataDimensions[2];
00150   unsigned short DataMask;
00151   int   SwapBytes;
00152   int   HeaderSize;
00153   vtkTransform *Transform;
00154 
00155   void TransformSlice (unsigned short *slice, unsigned short *pixels, int k, int dimensions[3], int bounds[3]);
00156   void ComputeTransformedDimensions(int dimensions[3]);
00157   void ComputeTransformedBounds(int bounds[6]);
00158   void ComputeTransformedSpacing(float Spacing[3]);
00159   void ComputeTransformedOrigin(float origin[3]);
00160   void AdjustSpacingAndOrigin(int dimensions[3], float Spacing[3], float origin[3]);
00161   vtkScalars *ReadImage(int ImageNumber);
00162   vtkScalars *ReadVolume(int FirstImage, int LastImage);
00163   int Read16BitImage(FILE *fp, unsigned short *pixels, int xsize, int ysize, 
00164            int skip, int swapBytes);
00165 
00166 };
00167 
00168 #endif
00169 
00170