vtkChartHistogram2D.h 2.38 KB
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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkChart2DHistogram.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.

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

// .NAME vtkChart2DHistogram - Chart for 2D histograms.
//
// .SECTION Description
// This defines the interface for a 2D histogram chart.

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#ifndef vtkChartHistogram2D_h
#define vtkChartHistogram2D_h
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#include "vtkChartsCoreModule.h" // For export macro
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#include "vtkChartXY.h"
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#include "vtkSmartPointer.h" // For SP ivars

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class vtkColorLegend;
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class vtkPlotHistogram2D;
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class vtkImageData;
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class vtkScalarsToColors;
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class VTKCHARTSCORE_EXPORT vtkChartHistogram2D : public vtkChartXY
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{
public:
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  vtkTypeMacro(vtkChartHistogram2D, vtkChartXY);
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  virtual void PrintSelf(ostream &os, vtkIndent indent);

  // Description:
  // Creates a 2D histogram chart
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  static vtkChartHistogram2D* New();
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  // Description:
  // Perform any updates to the item that may be necessary before rendering.
  // The scene should take care of calling this on all items before their
  // Paint function is invoked.
  virtual void Update();

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  virtual void SetInputData(vtkImageData *data, vtkIdType z = 0);
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  virtual void SetTransferFunction(vtkScalarsToColors *function);
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  // Description:
  // Return true if the supplied x, y coordinate is inside the item.
  virtual bool Hit(const vtkContextMouseEvent &mouse);

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  // Description:
  // Get the plot at the specified index, returns null if the index is invalid.
  virtual vtkPlot* GetPlot(vtkIdType index);

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protected:
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  vtkChartHistogram2D();
  ~vtkChartHistogram2D();
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  vtkSmartPointer<vtkPlotHistogram2D> Histogram;
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  // Description:
  // The point cache is marked dirty until it has been initialized.
  vtkTimeStamp BuildTime;

  class Private;
  Private* Storage;

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  virtual bool UpdateLayout(vtkContext2D *painter);
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private:
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  vtkChartHistogram2D(const vtkChartHistogram2D &); // Not implemented.
  void operator=(const vtkChartHistogram2D &);   // Not implemented.
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};

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#endif //vtkChartHistogram2D_h