evVisualizer2DVector.h

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/*
 *
 * EVITA: Efficient Visualization of Terascale Datasets
 * Copyright (C) 2000-2016  Team Evita
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
 * MA 02139, USA.
 *
 */


#ifndef __evVisualizer2DVector_h
#define __evVisualizer2DVector_h


#include "evVisualizer2D.h"
#include "vtkLookupTable.h"


class evVisualizer2DVector : public evVisualizer2D
{
public:
  evVisualizer2DVector(void);
  virtual ~evVisualizer2DVector(void);

  virtual const evString GetClassName(void) const
  {
    return(evString("evVisualizer2DVector"));
  }
  
  int Setup(evGUIVisualizerWindow &visualizer_window);
  int SetupProp(evROI *roi, const unsigned int component);
  int SetRenderBuffer(evROI *roi, const unsigned int component);

protected:
  
private:
  vtkLookupTable *LookupTable;
  static void CalcColor(const double vector_magnitude,
                        const double vector_angle,
                        double &red,
                        double &green,
                        double &blue);
  QccSQScalarQuantizer MagnitudeQuantizer;
  QccSQScalarQuantizer AngleQuantizer;
};


inline evVisualizer2DVector::evVisualizer2DVector(void)
{
  this->LookupTable = NULL;
  QccSQScalarQuantizerInitialize(&this->MagnitudeQuantizer);
  QccSQScalarQuantizerInitialize(&this->AngleQuantizer);
}


inline evVisualizer2DVector::~evVisualizer2DVector(void)
{
  if (this->LookupTable)
    this->LookupTable->Delete();
  QccSQScalarQuantizerFree(&this->MagnitudeQuantizer);
  QccSQScalarQuantizerFree(&this->AngleQuantizer);
}


#endif