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
|
/*=========================================================================
Program: Visualization Toolkit
Module: TestImageDataOrientation2.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.
=========================================================================*/
// .NAME Test orientation for image data
// .SECTION Description
// This program tests the location of an oriented Image Data by using a
// non-identity direction matrix and extracting points of the image data
// that fall within a sphere.
#include "vtkDebugLeaks.h"
#include "vtkGlyph3D.h"
#include "vtkImageData.h"
#include "vtkMath.h"
#include "vtkMatrix4x4.h"
#include "vtkNew.h"
#include "vtkPolyDataMapper.h"
#include "vtkProperty.h"
#include "vtkRegressionTestImage.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSelectEnclosedPoints.h"
#include "vtkSphereSource.h"
#include "vtkThresholdPoints.h"
int TestImageDataOrientation2(int argc, char* argv[])
{
// Standard rendering classes
vtkNew<vtkRenderer> renderer;
vtkNew<vtkRenderWindow> renWin;
renWin->AddRenderer(renderer);
vtkNew<vtkRenderWindowInteractor> iren;
iren->SetRenderWindow(renWin);
// Create an oriented image data
double angle = -vtkMath::Pi() / 4;
double direction[9] = { cos(angle), sin(angle), 0, -sin(angle), cos(angle), 0, 0, 0, 1 };
vtkNew<vtkImageData> image;
image->SetExtent(0, 6, 0, 10, 0, 10);
image->SetOrigin(-0.4, 0.2, -0.6);
image->SetSpacing(0.4, -0.25, 0.25);
image->SetDirectionMatrix(direction);
image->AllocateScalars(VTK_DOUBLE, 0);
// Create a containing surface
vtkNew<vtkSphereSource> ss;
ss->SetPhiResolution(25);
ss->SetThetaResolution(38);
ss->SetCenter(0, 0, 0);
ss->SetRadius(2.5);
vtkNew<vtkPolyDataMapper> sphereMapper;
sphereMapper->SetInputConnection(ss->GetOutputPort());
vtkNew<vtkActor> sphereActor;
sphereActor->SetMapper(sphereMapper);
sphereActor->GetProperty()->SetRepresentationToWireframe();
vtkNew<vtkSelectEnclosedPoints> select;
select->SetInputData(image);
select->SetSurfaceConnection(ss->GetOutputPort());
// Now extract points
vtkNew<vtkThresholdPoints> thresh;
thresh->SetInputConnection(select->GetOutputPort());
thresh->SetInputArrayToProcess(
0, 0, 0, vtkDataObject::FIELD_ASSOCIATION_POINTS, "SelectedPoints");
thresh->ThresholdByUpper(0.5);
// Show points as glyphs
vtkNew<vtkSphereSource> glyph;
vtkNew<vtkGlyph3D> glypher;
glypher->SetInputConnection(thresh->GetOutputPort());
glypher->SetSourceConnection(glyph->GetOutputPort());
glypher->SetScaleModeToDataScalingOff();
glypher->SetScaleFactor(0.15);
vtkNew<vtkPolyDataMapper> pointsMapper;
pointsMapper->SetInputConnection(glypher->GetOutputPort());
pointsMapper->ScalarVisibilityOff();
vtkNew<vtkActor> pointsActor;
pointsActor->SetMapper(pointsMapper);
pointsActor->GetProperty()->SetColor(0, 0, 1);
// Add actors
// renderer->AddActor(sphereActor);
renderer->AddActor(pointsActor);
// Standard testing code.
renWin->SetSize(400, 400);
renWin->Render();
int retVal = vtkRegressionTestImage(renWin);
if (retVal == vtkRegressionTester::DO_INTERACTOR)
{
iren->Start();
}
return !retVal;
}
|
