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ThirdParty-6/ParaView-5.0.1/VTK/Charts/Core/vtkCompositeTransferFunctionItem.h

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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCompositeTransferFunctionItem.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.
=========================================================================*/
#ifndef vtkCompositeTransferFunctionItem_h
#define vtkCompositeTransferFunctionItem_h
#include "vtkChartsCoreModule.h" // For export macro
#include "vtkColorTransferFunctionItem.h"
class vtkPiecewiseFunction;
// Description:
// vtkPlot::Color and vtkPlot::Brush have no effect here.
class VTKCHARTSCORE_EXPORT vtkCompositeTransferFunctionItem: public vtkColorTransferFunctionItem
{
public:
static vtkCompositeTransferFunctionItem* New();
vtkTypeMacro(vtkCompositeTransferFunctionItem, vtkColorTransferFunctionItem);
virtual void PrintSelf(ostream &os, vtkIndent indent);
void SetOpacityFunction(vtkPiecewiseFunction* opacity);
vtkGetObjectMacro(OpacityFunction, vtkPiecewiseFunction);
protected:
vtkCompositeTransferFunctionItem();
virtual ~vtkCompositeTransferFunctionItem();
// Description:
// Returns true if we are rendering in log space.
// Since vtkPiecewiseFunction doesn't support log, we show this transfer
// function in non-log space always.
virtual bool UsingLogScale() { return false; }
// Description:
// Reimplemented to return the range of the piecewise function
virtual void ComputeBounds(double bounds[4]);
virtual void ComputeTexture();
vtkPiecewiseFunction* OpacityFunction;
private:
vtkCompositeTransferFunctionItem(const vtkCompositeTransferFunctionItem&); // Not implemented.
void operator=(const vtkCompositeTransferFunctionItem&); // Not implemented
};
#endif