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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::SurfaceSpatialObject}
//
// \doxygen{SurfaceSpatialObject} defines a surface in n-dimensional space.
// A SurfaceSpatialObject is defined by a list of points which lie on the
// surface. Each point has a position and a unique normal. The example begins
// by including the appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkSurfaceSpatialObject.h"
// Software Guide : EndCodeSnippet
int main( int , char *[] )
{
// Software Guide : BeginLatex
//
// SurfaceSpatialObject is templated over the dimension of the space. A
// SurfaceSpatialObject contains a list of SurfaceSpatialObjectPoints. A
// SurfaceSpatialObjectPoint has a position, a normal and a color.
//
// First we define some type definitions
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::SurfaceSpatialObject<3> SurfaceType;
typedef SurfaceType::Pointer SurfacePointer;
typedef itk::SurfaceSpatialObjectPoint<3> SurfacePointType;
typedef itk::CovariantVector<double,3> VectorType;
SurfacePointer Surface = SurfaceType::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.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
SurfaceType::PointListType list;
for( unsigned int i=0; i<3; i++)
{
SurfacePointType p;
p.SetPosition(i,i+1,i+2);
p.SetColor(1,0,0,1);
VectorType normal;
for(unsigned int j=0;j<3;j++)
{
normal[j]=j;
}
p.SetNormal(normal);
list.push_back(p);
}
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we create the surface and set his name using \code{SetName()}. We
// also set its Identification number with \code{SetId()} and we add the list
// of points previously created.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
Surface->GetProperty()->SetName("Surface1");
Surface->SetId(1);
Surface->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
SurfaceType::PointListType pointList = Surface->GetPoints();
std::cout << "Number of points representing the surface: ";
std::cout << pointList.size() << std::endl;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then we can access the points using standard STL iterators.
// \code{GetPosition()} and \code{GetColor()} functions return respectively
// the position and the color of the point. \code{GetNormal()} returns the
// normal as a \doxygen{CovariantVector}.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
SurfaceType::PointListType::const_iterator it
= Surface->GetPoints().begin();
while(it != Surface->GetPoints().end())
{
std::cout << "Position = " << (*it).GetPosition() << std::endl;
std::cout << "Normal = " << (*it).GetNormal() << std::endl;
std::cout << "Color = " << (*it).GetColor() << std::endl;
std::cout << std::endl;
it++;
}
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
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