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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
// Software Guide : BeginLatex
//
// \index{itk::TubeSpatialObject}
//
// \doxygen{TubeSpatialObject} defines an n-dimensional tube. A tube is
// defined as a list of centerline points which have a position, a radius,
// some normals and other properties. Let's start by including the
// appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkTubeSpatialObject.h"
// Software Guide : EndCodeSnippet
int main( int , char *[] )
{
// Software Guide : BeginLatex
//
// TubeSpatialObject is templated over the dimension of the space. A
// TubeSpatialObject contains a list of TubeSpatialObjectPoints.
//
// First we define some type definitions and we create the tube.
//
// Software Guide : EndLatex
unsigned int i;
// Software Guide : BeginCodeSnippet
typedef itk::TubeSpatialObject<3> TubeType;
typedef TubeType::Pointer TubePointer;
typedef itk::TubeSpatialObjectPoint<3> TubePointType;
typedef TubePointType::CovariantVectorType VectorType;
TubePointer tube = TubeType::New();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// We create a point list and we set:
// \begin{enumerate}
// \item The position of each point in the local coordinate system using the
// \code{SetPosition()} method.
// \item The radius of the tube at this position using \code{SetRadius()}.
// \item The two normals at the tube is set using \code{SetNormal1()} and
// \code{SetNormal2()}.
// \item The color of the point is set to red in our case.
// \end{enumerate}
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
TubeType::PointListType list;
for (i=0; i<5; ++i)
{
TubePointType p;
p.SetPosition(i,i+1,i+2);
p.SetRadius(1);
VectorType normal1;
VectorType normal2;
for (unsigned int j=0; j<3; ++j)
{
normal1[j]=j;
normal2[j]=j*2;
}
p.SetNormal1(normal1);
p.SetNormal2(normal2);
p.SetColor(1,0,0,1);
list.push_back(p);
}
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we create the tube and set its name using \code{SetName()}. We also
// set its identification number with \code{SetId()} and, at the end, we add
// the list of points previously created.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
tube->GetProperty()->SetName("Tube1");
tube->SetId(1);
tube->SetPoints(list);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The \code{GetPoints()} method return a reference to the internal list of
// points of the object.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
TubeType::PointListType pointList = tube->GetPoints();
std::cout << "Number of points representing the tube: ";
std::cout << pointList.size() << std::endl;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The \code{ComputeTangentAndNormals()} function computes the normals and
// the tangent for each point using finite differences.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
tube->ComputeTangentAndNormals();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then we can access the points using STL iterators. \code{GetPosition()}
// and \code{GetColor()} functions return respectively the position and the
// color of the point. \code{GetRadius()} returns the radius at that
// point. \code{GetNormal1()} and \code{GetNormal1()} functions return a
// \doxygen{CovariantVector} and \code{GetTangent()} returns a
// \doxygen{Vector}.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
TubeType::PointListType::const_iterator it = tube->GetPoints().begin();
i=0;
while(it != tube->GetPoints().end())
{
std::cout << std::endl;
std::cout << "Point #" << i << std::endl;
std::cout << "Position: " << (*it).GetPosition() << std::endl;
std::cout << "Radius: " << (*it).GetRadius() << std::endl;
std::cout << "Tangent: " << (*it).GetTangent() << std::endl;
std::cout << "First Normal: " << (*it).GetNormal1() << std::endl;
std::cout << "Second Normal: " << (*it).GetNormal2() << std::endl;
std::cout << "Color = " << (*it).GetColor() << std::endl;
it++;
i++;
}
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
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