ITK  5.2.0
Insight Toolkit
Examples/SpatialObjects/LandmarkSpatialObject.cxx
/*=========================================================================
*
* Copyright NumFOCUS
*
* 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::LandmarkSpatialObject}
//
// \doxygen{LandmarkSpatialObject} contains a list of
// \doxygen{SpatialObjectPoint}s which have a position and a color. Let's
// begin this example by including the appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
// Software Guide : EndCodeSnippet
int
main(int, char *[])
{
// Software Guide : BeginLatex
//
// \code{LandmarkSpatialObject} is templated over the dimension of the
// space.
//
// Here we create a 3-dimensional landmark.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
using LandmarkType = itk::LandmarkSpatialObject<3>;
using LandmarkPointer = LandmarkType::Pointer;
using LandmarkPointType = LandmarkType::LandmarkPointType;
LandmarkPointer landmark = LandmarkType::New();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we set some properties of the object like its name and its
// identification number.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
landmark->GetProperty().SetName("Landmark1");
landmark->SetId(1);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// We are now ready to add points into the landmark. We first
// create a list of SpatialObjectPoint and for each point we set the
// position and the color.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
LandmarkType::LandmarkPointListType list;
for (unsigned int i = 0; i < 5; ++i)
{
LandmarkPointType p;
PointType pnt;
pnt[0] = i;
pnt[1] = i + 1;
pnt[2] = i + 2;
p.SetPositionInObjectSpace(pnt);
p.SetColor(1, 0, 0, 1);
list.push_back(p);
}
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then we add the list to the object using the \code{SetPoints()} method.
// Calling \code{Update()} afterwards ensures that World Space
// representations are also updated to match changes in the SpatialObject's
// parameters.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
landmark->SetPoints(list);
landmark->Update();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The current point list can be accessed using the \code{GetPoints()}
// method. The method returns a reference to the (STL) list.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
size_t nPoints = landmark->GetPoints().size();
std::cout << "Number of Points in the landmark: " << nPoints << std::endl;
LandmarkType::LandmarkPointListType::const_iterator it =
landmark->GetPoints().begin();
while (it != landmark->GetPoints().end())
{
std::cout << "Position: " << (*it).GetPositionInObjectSpace()
<< std::endl;
std::cout << "Color: " << (*it).GetColor() << std::endl;
++it;
}
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
itk::GTest::TypedefsAndConstructors::Dimension2::PointType
ImageBaseType::PointType PointType
Definition: itkGTestTypedefsAndConstructors.h:51
itkLandmarkSpatialObject.h
itk::LandmarkSpatialObject
Representation of a Landmark based on the spatial object classes.
Definition: itkLandmarkSpatialObject.h:38
itk::FixedArray::size
SizeType size() const