You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: vtkOpenGLVolumeTransferFunction2D.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 vtkOpenGLTransferFunction2D_h
|
|
#define vtkOpenGLTransferFunction2D_h
|
|
#ifndef __VTK_WRAP__
|
|
|
|
#include "vtkOpenGLVolumeLookupTable.h"
|
|
|
|
#include "vtkNew.h"
|
|
|
|
// Forward declarations
|
|
class vtkOpenGLRenderWindow;
|
|
class vtkImageResize;
|
|
|
|
/**
|
|
* \brief 2D Transfer function container.
|
|
*
|
|
* Manages the texture fetched by the fragment shader when TransferFunction2D
|
|
* mode is active. Update() assumes the vtkImageData instance used as source
|
|
* is of type VTK_FLOAT and has 4 components (vtkVolumeProperty ensures this
|
|
* is the case when the function is set).
|
|
*
|
|
* \sa vtkVolumeProperty::SetTransferFunction2D
|
|
*/
|
|
class vtkOpenGLVolumeTransferFunction2D : public vtkOpenGLVolumeLookupTable
|
|
{
|
|
public:
|
|
vtkTypeMacro(vtkOpenGLVolumeTransferFunction2D, vtkOpenGLVolumeLookupTable);
|
|
void PrintSelf(ostream& os, vtkIndent indent) override;
|
|
|
|
static vtkOpenGLVolumeTransferFunction2D* New();
|
|
|
|
protected:
|
|
vtkOpenGLVolumeTransferFunction2D();
|
|
|
|
/**
|
|
* Update the internal texture object using the 2D image data
|
|
*/
|
|
void InternalUpdate(vtkObject* func, int blendMode, double sampleDistance, double unitDistance,
|
|
int filterValue) override;
|
|
|
|
/**
|
|
* Override needs update to not test for scalar range changes since the range
|
|
* is encoded in the vtkImageData
|
|
*/
|
|
bool NeedsUpdate(
|
|
vtkObject* func, double scalarRange[2], int blendMode, double sampleDistance) override;
|
|
|
|
/**
|
|
* Override allocate table to do nothing as no internal table management is
|
|
* needed.
|
|
*/
|
|
void AllocateTable() override;
|
|
|
|
vtkNew<vtkImageResize> ResizeFilter;
|
|
|
|
private:
|
|
vtkOpenGLVolumeTransferFunction2D(const vtkOpenGLVolumeTransferFunction2D&) = delete;
|
|
vtkOpenGLVolumeTransferFunction2D& operator=(const vtkOpenGLVolumeTransferFunction2D&) = delete;
|
|
};
|
|
|
|
#endif // __VTK_WRAP__
|
|
#endif // vtkOpenGLTransferFunction2D_h
|
|
// VTK-HeaderTest-Exclude: vtkOpenGLVolumeTransferFunction2D.h
|