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
|
/*=========================================================================
Program: Visualization Toolkit
Module: TestFrustumSource.cxx
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.
=========================================================================*/
#include <vtkCamera.h>
#include <vtkFrustumSource.h>
#include <vtkMinimalStandardRandomSequence.h>
#include <vtkPlanes.h>
#include <vtkSmartPointer.h>
int TestFrustumSource(int vtkNotUsed(argc), char *vtkNotUsed(argv)[])
{
vtkSmartPointer<vtkMinimalStandardRandomSequence> randomSequence
= vtkSmartPointer<vtkMinimalStandardRandomSequence>::New();
randomSequence->SetSeed(1);
vtkSmartPointer<vtkFrustumSource> frustumSource
= vtkSmartPointer<vtkFrustumSource>::New();
frustumSource->ShowLinesOn();
frustumSource->SetOutputPointsPrecision(vtkAlgorithm::SINGLE_PRECISION);
randomSequence->Next();
double linesLength = randomSequence->GetValue();
frustumSource->SetLinesLength(linesLength);
vtkSmartPointer<vtkCamera> camera = vtkSmartPointer<vtkCamera>::New();
double position[3];
for(unsigned int i = 0; i < 3; ++i)
{
randomSequence->Next();
position[i] = randomSequence->GetValue();
}
camera->SetPosition(position);
double focalPoint[3];
for(unsigned int i = 0; i < 3; ++i)
{
randomSequence->Next();
focalPoint[i] = randomSequence->GetValue();
}
camera->SetFocalPoint(focalPoint);
double planeCoefficients[24];
camera->GetFrustumPlanes(1.0, planeCoefficients);
vtkSmartPointer<vtkPlanes> planes = vtkSmartPointer<vtkPlanes>::New();
planes->SetFrustumPlanes(planeCoefficients);
frustumSource->SetPlanes(planes);
frustumSource->Update();
vtkSmartPointer<vtkPolyData> polyData = frustumSource->GetOutput();
vtkSmartPointer<vtkPoints> points = polyData->GetPoints();
if(points->GetDataType() != VTK_FLOAT)
{
return EXIT_FAILURE;
}
frustumSource->SetOutputPointsPrecision(vtkAlgorithm::DOUBLE_PRECISION);
randomSequence->Next();
linesLength = randomSequence->GetValue();
frustumSource->SetLinesLength(linesLength);
for(unsigned int i = 0; i < 3; ++i)
{
randomSequence->Next();
position[i] = randomSequence->GetValue();
}
camera->SetPosition(position);
for(unsigned int i = 0; i < 3; ++i)
{
randomSequence->Next();
focalPoint[i] = randomSequence->GetValue();
}
camera->SetFocalPoint(focalPoint);
camera->GetFrustumPlanes(1.0, planeCoefficients);
planes->SetFrustumPlanes(planeCoefficients);
frustumSource->SetPlanes(planes);
frustumSource->Update();
polyData = frustumSource->GetOutput();
points = polyData->GetPoints();
if(points->GetDataType() != VTK_DOUBLE)
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
