/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkBYUWriter.h,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
// .NAME vtkBYUWriter - write MOVIE.BYU files
// .SECTION Description
// vtkBYUWriter writes MOVIE.BYU polygonal files. These files consist 
// of a geometry file (.g), a scalar file (.s), a displacement or 
// vector file (.d), and a 2D texture coordinate file (.t). These files 
// must be specified to the object, the appropriate boolean 
// variables must be true, and data must be available from the input
// for the files to be written.
// WARNING: this writer does not currently write triangle strips. Use
// vtkTriangleFilter to convert strips to triangles.

#ifndef __vtkBYUWriter_h
#define __vtkBYUWriter_h

#include "vtkPolyDataWriter.h"

class VTK_IO_EXPORT vtkBYUWriter : public vtkPolyDataWriter
{
public:
  static vtkBYUWriter *New();

  vtkTypeRevisionMacro(vtkBYUWriter,vtkPolyDataWriter);
  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Specify the name of the geometry file to write.
  vtkSetStringMacro(GeometryFileName);
  vtkGetStringMacro(GeometryFileName);

  // Description:
  // Specify the name of the displacement file to write.
  vtkSetStringMacro(DisplacementFileName);
  vtkGetStringMacro(DisplacementFileName);

  // Description:
  // Specify the name of the scalar file to write.
  vtkSetStringMacro(ScalarFileName);
  vtkGetStringMacro(ScalarFileName);

  // Description:
  // Specify the name of the texture file to write.
  vtkSetStringMacro(TextureFileName);
  vtkGetStringMacro(TextureFileName);

  // Description:
  // Turn on/off writing the displacement file.
  vtkSetMacro(WriteDisplacement,int);
  vtkGetMacro(WriteDisplacement,int);
  vtkBooleanMacro(WriteDisplacement,int);
  
  // Description:
  // Turn on/off writing the scalar file.
  vtkSetMacro(WriteScalar,int);
  vtkGetMacro(WriteScalar,int);
  vtkBooleanMacro(WriteScalar,int);
  
  // Description:
  // Turn on/off writing the texture file.
  vtkSetMacro(WriteTexture,int);
  vtkGetMacro(WriteTexture,int);
  vtkBooleanMacro(WriteTexture,int);

protected:
  vtkBYUWriter();
  ~vtkBYUWriter();

  void WriteData();

  char *GeometryFileName;
  char *DisplacementFileName;
  char *ScalarFileName;
  char *TextureFileName;
  int WriteDisplacement;
  int WriteScalar;
  int WriteTexture;

  void WriteGeometryFile(FILE *fp, int numPts);
  void WriteDisplacementFile(int numPts);
  void WriteScalarFile(int numPts);
  void WriteTextureFile(int numPts);
private:
  vtkBYUWriter(const vtkBYUWriter&);  // Not implemented.
  void operator=(const vtkBYUWriter&);  // Not implemented.
};

#endif

