VTK  9.1.0
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
43#ifndef vtkUnstructuredGridLinearRayIntegrator_h
44#define vtkUnstructuredGridLinearRayIntegrator_h
45
46#include "vtkRenderingVolumeModule.h" // For export macro
48
49class vtkLinearRayIntegratorTransferFunction;
51
52class VTKRENDERINGVOLUME_EXPORT vtkUnstructuredGridLinearRayIntegrator
54{
55public:
58 void PrintSelf(ostream& os, vtkIndent indent) override;
59
60 void Initialize(vtkVolume* volume, vtkDataArray* scalars) override;
61
62 void Integrate(vtkDoubleArray* intersectionLengths, vtkDataArray* nearIntersections,
63 vtkDataArray* farIntersections, float color[4]) override;
64
66
70 static void IntegrateRay(double length, double intensity_front, double attenuation_front,
71 double intensity_back, double attenuation_back, float color[4]);
72 static void IntegrateRay(double length, const double color_front[3], double attenuation_front,
73 const double color_back[3], double attenuation_back, float color[4]);
75
80 static float Psi(float length, float attenuation_front, float attenuation_back);
81
82protected:
85
87
88 vtkLinearRayIntegratorTransferFunction* TransferFunctions;
91
92private:
94 void operator=(const vtkUnstructuredGridLinearRayIntegrator&) = delete;
95};
96
97#endif // vtkUnstructuredGridLinearRayIntegrator_h
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:159
dynamic, self-adjusting array of double
a simple class to control print indentation
Definition: vtkIndent.h:113
record modification and/or execution time
Definition: vtkTimeStamp.h:52
performs piecewise linear ray integration.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
static vtkUnstructuredGridLinearRayIntegrator * New()
static float Psi(float length, float attenuation_front, float attenuation_back)
Computes Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructure...
void Integrate(vtkDoubleArray *intersectionLengths, vtkDataArray *nearIntersections, vtkDataArray *farIntersections, float color[4]) override
Given a set of intersections (defined by the three arrays), compute the piecewise integration of the ...
static void IntegrateRay(double length, const double color_front[3], double attenuation_front, const double color_back[3], double attenuation_back, float color[4])
Integrates a single ray segment.
static void IntegrateRay(double length, double intensity_front, double attenuation_front, double intensity_back, double attenuation_back, float color[4])
Integrates a single ray segment.
void Initialize(vtkVolume *volume, vtkDataArray *scalars) override
Set up the integrator with the given properties and scalars.
vtkLinearRayIntegratorTransferFunction * TransferFunctions
a superclass for volume ray integration functions
represents the common properties for rendering a volume.
represents a volume (data & properties) in a rendered scene
Definition: vtkVolume.h:144