forked from Kitware/VTK
-
Notifications
You must be signed in to change notification settings - Fork 0
/
vtkImplicitHalo.h
99 lines (82 loc) · 2.51 KB
/
vtkImplicitHalo.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
/*=========================================================================
Program: Visualization Toolkit
Module: vtkImplicitHalo.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.
=========================================================================*/
/**
* @class vtkImplicitHalo
* @brief implicit function for an halo
*
* vtkImplicitHalo evaluates to 1.0 for each position in the sphere of a
* given center and radius Radius*(1-FadeOut). It evaluates to 0.0 for each
* position out the sphere of a given Center and radius Radius. It fades out
* linearly from 1.0 to 0.0 for points in a radius from Radius*(1-FadeOut) to
* Radius.
* vtkImplicitHalo is a concrete implementation of vtkImplicitFunction.
* It is useful as an input to
* vtkSampleFunction to generate an 2D image of an halo. It is used this way by
* vtkShadowMapPass.
* @warning
* It does not implement the gradient.
*/
#ifndef vtkImplicitHalo_h
#define vtkImplicitHalo_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"
class VTKCOMMONDATAMODEL_EXPORT vtkImplicitHalo : public vtkImplicitFunction
{
public:
/**
* Center=(0.0,0.0,0.0), Radius=1.0, FadeOut=0.01
*/
static vtkImplicitHalo *New();
vtkTypeMacro(vtkImplicitHalo,vtkImplicitFunction);
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* Evaluate the equation.
*/
using vtkImplicitFunction::EvaluateFunction;
double EvaluateFunction(double x[3]) override;
//@}
/**
* Evaluate normal. Not implemented.
*/
void EvaluateGradient(double x[3], double g[3]) override;
//@{
/**
* Radius of the sphere.
*/
vtkSetMacro(Radius,double);
vtkGetMacro(Radius,double);
//@}
//@{
/**
* Center of the sphere.
*/
vtkSetVector3Macro(Center,double);
vtkGetVector3Macro(Center,double);
//@}
//@{
/**
* FadeOut ratio. Valid values are between 0.0 and 1.0.
*/
vtkSetMacro(FadeOut,double);
vtkGetMacro(FadeOut,double);
//@}
protected:
vtkImplicitHalo();
~vtkImplicitHalo() override;
double Radius;
double Center[3];
double FadeOut;
private:
vtkImplicitHalo(const vtkImplicitHalo&) = delete;
void operator=(const vtkImplicitHalo&) = delete;
};
#endif