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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkImplicitWindowFunction.h"
#include "vtkGarbageCollector.h"
#include "vtkObjectFactory.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkImplicitWindowFunction);
vtkCxxSetObjectMacro(vtkImplicitWindowFunction, ImplicitFunction, vtkImplicitFunction);
// Construct object with window range (0,1) and window values (0,1).
vtkImplicitWindowFunction::vtkImplicitWindowFunction()
{
this->ImplicitFunction = nullptr;
this->WindowRange[0] = 0.0;
this->WindowRange[1] = 1.0;
this->WindowValues[0] = 0.0;
this->WindowValues[1] = 1.0;
}
vtkImplicitWindowFunction::~vtkImplicitWindowFunction()
{
this->SetImplicitFunction(nullptr);
}
// Evaluate window function.
double vtkImplicitWindowFunction::EvaluateFunction(double x[3])
{
static bool beenWarned = false;
double value, diff1, diff2, scaledRange;
if (!this->ImplicitFunction && !beenWarned)
{
vtkErrorMacro(<< "Implicit function must be defined");
beenWarned = true;
return 0.0;
}
value = this->ImplicitFunction->EvaluateFunction(x);
diff1 = value - this->WindowRange[0];
diff2 = value - this->WindowRange[1];
scaledRange = (this->WindowValues[1] - this->WindowValues[0]) / 2.0;
if (scaledRange == 0.0)
{
scaledRange = 1.0;
}
if (diff1 >= 0.0 && diff2 <= 0.0) // within window
{
if (diff1 <= (-diff2))
{
value = diff1 / scaledRange + this->WindowValues[0];
}
else
{
value = (-diff2) / scaledRange + this->WindowValues[0];
}
}
else if (diff1 < 0.0) // below window
{
value = diff1 / scaledRange + this->WindowValues[0];
}
else // above window
{
value = -diff2 / scaledRange + this->WindowValues[0];
}
return value;
}
// Evaluate window function gradient. Just return implicit function gradient.
void vtkImplicitWindowFunction::EvaluateGradient(double x[3], double n[3])
{
if (this->ImplicitFunction)
{
this->ImplicitFunction->EvaluateGradient(x, n);
}
}
vtkMTimeType vtkImplicitWindowFunction::GetMTime()
{
vtkMTimeType fMtime;
vtkMTimeType mtime = this->vtkImplicitFunction::GetMTime();
if (this->ImplicitFunction)
{
fMtime = this->ImplicitFunction->GetMTime();
if (fMtime > mtime)
{
mtime = fMtime;
}
}
return mtime;
}
void vtkImplicitWindowFunction::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
if (this->ImplicitFunction)
{
os << indent << "Implicit Function: " << this->ImplicitFunction << "\n";
}
else
{
os << indent << "No implicit function defined.\n";
}
os << indent << "Window Range: (" << this->WindowRange[0] << ", " << this->WindowRange[1]
<< ")\n";
os << indent << "Window Values: (" << this->WindowValues[0] << ", " << this->WindowValues[1]
<< ")\n";
}
//------------------------------------------------------------------------------
void vtkImplicitWindowFunction ::ReportReferences(vtkGarbageCollector* collector)
{
this->Superclass::ReportReferences(collector);
// These filters share our input and are therefore involved in a
// reference loop.
vtkGarbageCollectorReport(collector, this->ImplicitFunction, "ImplicitFunction");
}
VTK_ABI_NAMESPACE_END
|
