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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::GroupSpatialObject}
//
// A \doxygen{GroupSpatialObject} does not have
// any data associated with it. It can be used to group objects
// or to add transforms to a current object.
// In this example we show how to use a GroupSpatialObject.
//
// Let's begin by including the appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkGroupSpatialObject.h"
// Software Guide : EndCodeSnippet
#include "itkEllipseSpatialObject.h"
int main( int , char *[] )
{
// Software Guide : BeginLatex
//
// The \doxygen{GroupSpatialObject} is templated
// over the dimensionality of the object.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::GroupSpatialObject<3> GroupType;
GroupType::Pointer myGroup = GroupType::New();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we create an \doxygen{EllipseSpatialObject} and add it to
// the group.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
typedef itk::EllipseSpatialObject<3> EllipseType;
EllipseType::Pointer myEllipse = EllipseType::New();
myEllipse->SetRadius(2);
myGroup->AddSpatialObject(myEllipse);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// We then translate the group by 10mm in each direction.
// Therefore the ellipse is translated in physical space at the same time.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
GroupType::VectorType offset;
offset.Fill(10);
myGroup->GetObjectToParentTransform()->SetOffset(offset);
myGroup->ComputeObjectToWorldTransform();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// We can then query if a point is inside the group using the
// \code{IsInside()} function. We need to specify in this case that
// we want to consider all the hierarchy, therefore we set the depth to 2.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
GroupType::PointType point;
point.Fill(10);
std::cout << "Is my point " << point << " inside?: "
<< myGroup->IsInside(point,2) << std::endl;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Like any other SpatialObjects we can remove the ellipse from the group
// using the \code{RemoveSpatialObject()} method.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
myGroup->RemoveSpatialObject(myEllipse);
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
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