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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::BlobSpatialObject}
//
// \doxygen{BlobSpatialObject} defines an N-dimensional blob. Like other
// SpatialObjects this class derives from \doxygen{itkSpatialObject}. A blob
// is defined as a list of points which compose the object.
//
// Let's start by including the appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkBlobSpatialObject.h"
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// BlobSpatialObject is templated over the dimension of the space.
// A BlobSpatialObject contains a list of SpatialObjectPoints. Basically,
// a SpatialObjectPoint has a position and a color.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkSpatialObjectPoint.h"
// Software Guide : EndCodeSnippet
int main( int, char *[] )
{
// Software Guide : BeginLatex
//
// First we declare some type definitions.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::BlobSpatialObject<3> BlobType;
typedef BlobType::Pointer BlobPointer;
typedef itk::SpatialObjectPoint<3> BlobPointType;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then, we create a list of points 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 be red.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
BlobType::PointListType list;
for( unsigned int i=0; i<4; i++)
{
BlobPointType p;
p.SetPosition(i,i+1,i+2);
p.SetRed(1);
p.SetGreen(0);
p.SetBlue(0);
p.SetAlpha(1.0);
list.push_back(p);
}
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we create the blob and set its name using the \code{SetName()}
// function. We also set its Identification number with \code{SetId()} and we
// add the list of points previously created.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
BlobPointer blob = BlobType::New();
blob->GetProperty()->SetName("My Blob");
blob->SetId(1);
blob->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
BlobType::PointListType pointList = blob->GetPoints();
std::cout << "The blob contains " << pointList.size();
std::cout << " points" << std::endl;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then we can access the points using standard STL iterators and
// \code{GetPosition()} and \code{GetColor()} functions return respectively
// the position and the color of the point.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
BlobType::PointListType::const_iterator it = blob->GetPoints().begin();
while(it != blob->GetPoints().end())
{
std::cout << "Position = " << (*it).GetPosition() << std::endl;
std::cout << "Color = " << (*it).GetColor() << std::endl;
++it;
}
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
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