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
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: LineSpatialObject.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
// Software Guide : BeginLatex
//
// \index{itk::LineSpatialObject}
//
// \doxygen{LineSpatialObject} defines a line in an n-dimensional space. A
// line is defined as a list of points which compose the line, i.e a
// polyline. We begin the example by including the appropriate header files.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkLineSpatialObject.h"
#include "itkLineSpatialObjectPoint.h"
// Software Guide : EndCodeSnippet
int main( int , char *[] )
{
// Software Guide : BeginLatex
//
// LineSpatialObject is templated over the dimension of the space.
// A LineSpatialObject contains a list of LineSpatialObjectPoints.
// A LineSpatialObjectPoint has a position, $n-1$ normals and a color.
// Each normal is expressed as a \doxygen{CovariantVector} of size N.
//
// First, we define some type definitions and we create our line.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::LineSpatialObject<3> LineType;
typedef LineType::Pointer LinePointer;
typedef itk::LineSpatialObjectPoint<3> LinePointType;
typedef itk::CovariantVector<double,3> VectorType;
LinePointer Line = LineType::New();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// We create a point list and we set the position of each point in the local
// coordinate system using the \code{SetPosition()} method. We also set the
// color of each point to red.
//
// The two normals are set using the \code{SetNormal()} function; the first
// argument is the normal itself and the second argument is the index of the
// normal.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
LineType::PointListType list;
for(unsigned int i=0; i<3; i++)
{
LinePointType p;
p.SetPosition(i,i+1,i+2);
p.SetColor(1,0,0,1);
VectorType normal1;
VectorType normal2;
for(unsigned int j=0;j<3;j++)
{
normal1[j]=j;
normal2[j]=j*2;
}
p.SetNormal(normal1,0);
p.SetNormal(normal2,1);
list.push_back(p);
}
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we set the name of the object using \code{SetName()}. We also set its
// identification number with \code{SetId()} and we set the list of points
// previously created.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
Line->GetProperty()->SetName("Line1");
Line->SetId(1);
Line->SetPoints(list);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The \code{GetPoints()} method returns a reference to the internal list of points
// of the object.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
LineType::PointListType pointList = Line->GetPoints();
std::cout << "Number of points representing the line: ";
std::cout << pointList.size() << std::endl;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then we can access the points using standard STL iterators. The
// \code{GetPosition()} and \code{GetColor()} functions return respectively the position
// and the color of the point. Using the GetNormal(unsigned int) function we
// can access each normal.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
LineType::PointListType::const_iterator it = Line->GetPoints().begin();
while(it != Line->GetPoints().end())
{
std::cout << "Position = " << (*it).GetPosition() << std::endl;
std::cout << "Color = " << (*it).GetColor() << std::endl;
std::cout << "First normal = " << (*it).GetNormal(0) << std::endl;
std::cout << "Second normal = " << (*it).GetNormal(1) << std::endl;
std::cout << std::endl;
it++;
}
// Software Guide : EndCodeSnippet
return 0;
}
|
