// -*- c++ -*-
/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkSLACPlaneGlyphs.h

  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.

=========================================================================*/
/*----------------------------------------------------------------------------
 Copyright (c) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/

// .NAME vtkSLACPlaneGlyphs - Create evenly spaced glyphs on a plane through data.
//
// .SECTION Description
//
// This filter probes a volume with regularly spaced samples on a plane and
// generates oriented glyphs.  It also supports some special scaling of
// the glyphs to look nice on electric field data.
//

#ifndef vtkSLACPlaneGlyphs_h
#define vtkSLACPlaneGlyphs_h

#include "vtkPolyDataAlgorithm.h"

class vtkSLACPlaneGlyphs : public vtkPolyDataAlgorithm
{
public:
  vtkTypeMacro(vtkSLACPlaneGlyphs, vtkPolyDataAlgorithm);
  static vtkSLACPlaneGlyphs* New();
  virtual void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;

  // Description:
  // The location of the center of the plane.  A point is guaranteed to be here.
  vtkGetVector3Macro(Center, double);
  vtkSetVector3Macro(Center, double);

  // Description:
  // The normal to the plane.
  vtkGetVector3Macro(Normal, double);
  vtkSetVector3Macro(Normal, double);

  // Description:
  // The approximate number of samples in each direction that will intersect the
  // input bounds.
  vtkGetMacro(Resolution, int);
  vtkSetMacro(Resolution, int);

protected:
  vtkSLACPlaneGlyphs();
  ~vtkSLACPlaneGlyphs();

  double Center[3];
  double Normal[3];
  int Resolution;

  virtual int FillInputPortInformation(int port, vtkInformation* info) VTK_OVERRIDE;

  virtual int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) VTK_OVERRIDE;

private:
  vtkSLACPlaneGlyphs(const vtkSLACPlaneGlyphs&);
  void operator=(const vtkSLACPlaneGlyphs&);
};

#endif // vtkSLACPlaneGlyphs_h
