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
|
/*=========================================================================
Program: Visualization Toolkit
Module: TestTransform.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 <iostream>
#include "vtkTransform.h"
#include "vtkSmartPointer.h"
// forward declare test subroutines
int testUseOfInverse();
int TestTransform(int,char *[])
{
int numErrors = 0;
numErrors += testUseOfInverse();
return (numErrors > 0) ? 1 : 0;
}
// This is a regression test for a bug where th following code produced
// a segfault. As long as this code does not produce a segfault,
// consider it to have passed the test.
int testUseOfInverse()
{
vtkSmartPointer<vtkTransform> trans1 =
vtkSmartPointer<vtkTransform>::New();
vtkSmartPointer<vtkTransform> trans2 =
vtkSmartPointer<vtkTransform>::New();
vtkSmartPointer<vtkTransform> trans3 =
vtkSmartPointer<vtkTransform>::New();
trans1->Identity();
trans2->Identity();
trans2->PostMultiply();
trans3->Identity();
double a[] = {3,4,5}, b[3];
// get inverses for 2 and 3
vtkSmartPointer<vtkLinearTransform> inv2 =
trans2->GetLinearInverse();
vtkSmartPointer<vtkLinearTransform> inv3 =
trans3->GetLinearInverse();
for (int i = 0; i < 30; i++)
{
// make the transform something easy
trans2->Translate(a);
trans2->RotateX(4);
trans2->RotateY(i % 90);
// transform some stuff
inv2->TransformVector(a,b);
inv2->TransformPoint(a,b);
// build a transform with concatenations including an inverse
trans2->Identity();
trans2->Concatenate(trans1);
trans2->Concatenate(inv3);
// transform some stuff
inv2->TransformVector(a,b);
inv2->TransformPoint(a,b);
// print i
trans2->Identity();
std::cout << "Iteration: " << i << " Reference Count: "
<< inv3->GetReferenceCount() << std::endl;
}
return 0;
}
|
