Initial revision

include/VoxelR.hh

+/*=========================================================================
+
+  Program:   Visualization Library
+  Module:    VoxelR.hh
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+This file is part of the Visualization Library. No part of this file or its
+contents may be copied, reproduced or altered in any way without the express
+written consent of the authors.
+
+Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen 1993, 1994
+
+=========================================================================*/
+//
+// Read Voxel Data
+//
+#ifndef __vlVoxelReader_h
+#define __vlVoxelReader_h
+
+#include <stdio.h>
+#include "SPtSrc.hh"
+#include "BScalars.hh"
+
+class vlVoxelReader : public vlStructuredPointsSource 
+{
+public:
+  vlVoxelReader():Filename(NULL) {};
+  ~vlVoxelReader() {if (this->Filename) delete [] this->Filename;};
+  char *GetClassName() {return "vlVoxelReader";};
+  void PrintSelf(ostream& os, vlIndent indent);
+
+  vlSetStringMacro(Filename);
+  vlGetStringMacro(Filename);
+
+protected:
+  char *Filename;
+  void Execute();
+};
+
+#endif
+
+

src/VoxelR.cc

+/*=========================================================================
+
+  Program:   Visualization Library
+  Module:    VoxelR.cc
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+This file is part of the Visualization Library. No part of this file or its
+contents may be copied, reproduced or altered in any way without the express
+written consent of the authors.
+
+Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen 1993, 1994
+
+=========================================================================*/
+#include <ctype.h>
+#include "VoxelR.hh"
+
+void vlVoxelReader::Execute()
+{
+  FILE *fp;
+  vlBitScalars *newScalars;
+  int i,numPts;
+  char tmp[80];
+  int bitcount;
+  unsigned char uc;
+  float f[3];
+  int ti[3];
+
+  // Initialize
+  this->Initialize();
+
+  if ((fp = fopen(this->Filename, "r")) == NULL)
+    {
+    vlErrorMacro(<< "File " << this->Filename << " not found");
+    return;
+    }
+
+  // read the header
+  fscanf(fp,"Voxel Data File\n");
+
+  // read in the 
+  fscanf(fp,"Origin: %f %f %f\n",f,f+1,f+2);
+  this->SetOrigin(f);
+
+  fscanf(fp,"Aspect: %f %f %f\n",f,f+1,f+2);
+  this->SetAspectRatio(f);
+
+  fscanf(fp,"Dimensions: %i %i %i\n",ti,ti+1,ti+2);
+  this->SetDimensions(ti);
+
+  numPts = this->Dimensions[0] * this->Dimensions[1] * this->Dimensions[2];
+  newScalars = new vlBitScalars(numPts);
+
+  bitcount = 0;
+  for (i=0; i<numPts;) 
+    {
+    uc = fgetc(fp);
+    newScalars->SetScalar(i++,uc&0x80);
+    newScalars->SetScalar(i++,uc&0x40);
+    newScalars->SetScalar(i++,uc&0x20);
+    newScalars->SetScalar(i++,uc&0x10);
+    newScalars->SetScalar(i++,uc&0x08);
+    newScalars->SetScalar(i++,uc&0x04);
+    newScalars->SetScalar(i++,uc&0x02);
+    newScalars->SetScalar(i++,uc&0x01);
+    }
+
+  vlDebugMacro(<< "Read " << numPts<< " points");
+
+  this->PointData.SetScalars(newScalars);
+}
+
+void vlVoxelReader::PrintSelf(ostream& os, vlIndent indent)
+{
+  if (this->ShouldIPrint(vlVoxelReader::GetClassName()))
+    {
+    vlStructuredPointsSource::PrintSelf(os,indent);
+
+    os << indent << "Filename: " << this->Filename << "\n";
+    }
+}