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72 lines
2.6 KiB
72 lines
2.6 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkUnstructuredGridVolumeRayIntegrator.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkUnstructuredGridVolumeRayIntegrator - a superclass for volume ray integration functions
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// .SECTION Description
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//
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// vtkUnstructuredGridVolumeRayIntegrator is a superclass for ray
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// integration functions that can be used within a
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// vtkUnstructuredGridVolumeRayCastMapper.
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//
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// .SECTION See Also
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// vtkUnstructuredGridVolumeRayCastMapper
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// vtkUnstructuredGridVolumeRayCastFunction
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#ifndef __vtkUnstructuredGridVolumeRayIntegrator_h
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#define __vtkUnstructuredGridVolumeRayIntegrator_h
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#include "vtkObject.h"
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class vtkVolume;
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class vtkDoubleArray;
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class vtkDataArray;
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class VTK_VOLUMERENDERING_EXPORT vtkUnstructuredGridVolumeRayIntegrator : public vtkObject
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{
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public:
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vtkTypeRevisionMacro(vtkUnstructuredGridVolumeRayIntegrator,vtkObject);
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virtual void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Set up the integrator with the given properties and scalars.
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virtual void Initialize(vtkVolume *volume,
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vtkDataArray* scalars) = 0;
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// Description:
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// Given a set of intersections (defined by the three arrays), compute
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// the peicewise integration of the array in front to back order.
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// /c intersectionLengths holds the lengths of each peicewise segment.
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// /c nearIntersections and /c farIntersections hold the scalar values at
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// the front and back of each segment. /c color should contain the RGBA
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// value of the volume in front of the segments passed in, and the result
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// will be placed back into /c color.
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virtual void Integrate(vtkDoubleArray *intersectionLengths,
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vtkDataArray *nearIntersections,
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vtkDataArray *farIntersections,
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float color[4]) = 0;
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protected:
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vtkUnstructuredGridVolumeRayIntegrator();
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~vtkUnstructuredGridVolumeRayIntegrator();
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private:
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vtkUnstructuredGridVolumeRayIntegrator(const vtkUnstructuredGridVolumeRayIntegrator&); // Not implemented.
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void operator=(const vtkUnstructuredGridVolumeRayIntegrator&); // Not implemented.
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};
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#endif
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