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vtkUnstructuredGridLinearRayIntegrator.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkUnstructuredGridLinearRayIntegrator.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
15 
16 /*
17  * Copyright 2004 Sandia Corporation.
18  * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
19  * license for use of this work by or on behalf of the
20  * U.S. Government. Redistribution and use in source and binary forms, with
21  * or without modification, are permitted provided that this Notice and any
22  * statement of authorship are reproduced on all copies.
23  */
24 
46 #ifndef vtkUnstructuredGridLinearRayIntegrator_h
47 #define vtkUnstructuredGridLinearRayIntegrator_h
48 
49 #include "vtkRenderingVolumeModule.h" // For export macro
51 
52 class vtkLinearRayIntegratorTransferFunction;
53 class vtkVolumeProperty;
54 
56 {
57 public:
61  virtual void PrintSelf(ostream &os, vtkIndent indent);
62 
63  virtual void Initialize(vtkVolume *volume, vtkDataArray *scalars);
64 
65  virtual void Integrate(vtkDoubleArray *intersectionLengths,
66  vtkDataArray *nearIntersections,
67  vtkDataArray *farIntersections,
68  float color[4]);
69 
71 
75  static void IntegrateRay(double length,
76  double intensity_front, double attenuation_front,
77  double intensity_back, double attenuation_back,
78  float color[4]);
79  static void IntegrateRay(double length,
80  const double color_front[3],
81  double attenuation_front,
82  const double color_back[3],
83  double attenuation_back,
84  float color[4]);
86 
91  static float Psi(float length,
92  float attenuation_front, float attenuation_back);
93 
94 protected:
97 
99 
100  vtkLinearRayIntegratorTransferFunction *TransferFunctions;
103 
104 private:
106  void operator=(const vtkUnstructuredGridLinearRayIntegrator&) VTK_DELETE_FUNCTION;
107 };
108 
109 #endif //vtkUnstructuredGridLinearRayIntegrator_h
represents a volume (data & properties) in a rendered scene
Definition: vtkVolume.h:50
virtual void Initialize(vtkVolume *volume, vtkDataArray *scalars)=0
Set up the integrator with the given properties and scalars.
record modification and/or execution time
Definition: vtkTimeStamp.h:35
dynamic, self-adjusting array of double
a superclass for volume ray integration functions
a simple class to control print indentation
Definition: vtkIndent.h:39
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:54
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
represents the common properties for rendering a volume.
vtkLinearRayIntegratorTransferFunction * TransferFunctions
performs piecewise linear ray integration.
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on...
virtual void Integrate(vtkDoubleArray *intersectionLengths, vtkDataArray *nearIntersections, vtkDataArray *farIntersections, float color[4])=0
Given a set of intersections (defined by the three arrays), compute the peicewise integration of the ...