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/*=========================================================================
*
* 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
*
* https://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.
*
*=========================================================================*/
#ifndef itkEllipseSpatialObject_hxx
#define itkEllipseSpatialObject_hxx
namespace itk
{
template <unsigned int TDimension>
EllipseSpatialObject<TDimension>::EllipseSpatialObject()
{
this->SetTypeName("EllipseSpatialObject");
this->Clear();
this->Update();
}
template <unsigned int TDimension>
void
EllipseSpatialObject<TDimension>::Clear()
{
Superclass::Clear();
m_RadiusInObjectSpace.Fill(1.0);
m_CenterInObjectSpace.Fill(0.0);
this->Modified();
}
template <unsigned int TDimension>
void
EllipseSpatialObject<TDimension>::SetRadiusInObjectSpace(double radius)
{
bool changes = false;
for (unsigned int i = 0; i < ObjectDimension; ++i)
{
if (m_RadiusInObjectSpace[i] != radius)
{
m_RadiusInObjectSpace[i] = radius;
changes = true;
}
}
if (changes)
{
this->Modified();
}
}
template <unsigned int TDimension>
bool
EllipseSpatialObject<TDimension>::IsInsideInObjectSpace(const PointType & point) const
{
double d;
double r = 0;
for (unsigned int i = 0; i < TDimension; ++i)
{
if (m_RadiusInObjectSpace[i] > 0.0)
{
d = point[i] - m_CenterInObjectSpace[i];
r += (d * d) / (m_RadiusInObjectSpace[i] * m_RadiusInObjectSpace[i]);
}
else if (point[i] != 0.0 || m_RadiusInObjectSpace[i] < 0)
// Deal with an ellipse with 0 or negative radius;
{
r = 2; // Keeps function from returning true here
break;
}
}
if (r < 1)
{
return true;
}
return false;
}
template <unsigned int TDimension>
void
EllipseSpatialObject<TDimension>::ComputeMyBoundingBox()
{
itkDebugMacro("Computing ellipse bounding box");
PointType pnt1;
PointType pnt2;
for (unsigned int i = 0; i < TDimension; ++i)
{
pnt1[i] = m_CenterInObjectSpace[i] - m_RadiusInObjectSpace[i];
pnt2[i] = m_CenterInObjectSpace[i] + m_RadiusInObjectSpace[i];
}
this->GetModifiableMyBoundingBoxInObjectSpace()->SetMinimum(pnt1);
this->GetModifiableMyBoundingBoxInObjectSpace()->SetMaximum(pnt1);
this->GetModifiableMyBoundingBoxInObjectSpace()->ConsiderPoint(pnt2);
this->GetModifiableMyBoundingBoxInObjectSpace()->ComputeBoundingBox();
}
template <unsigned int TDimension>
typename LightObject::Pointer
EllipseSpatialObject<TDimension>::InternalClone() const
{
typename LightObject::Pointer loPtr = Superclass::InternalClone();
typename Self::Pointer rval = dynamic_cast<Self *>(loPtr.GetPointer());
if (rval.IsNull())
{
itkExceptionMacro("Downcast to type " << this->GetNameOfClass() << " failed.");
}
rval->SetRadiusInObjectSpace(this->GetRadiusInObjectSpace());
rval->SetCenterInObjectSpace(this->GetCenterInObjectSpace());
return loPtr;
}
template <unsigned int TDimension>
void
EllipseSpatialObject<TDimension>::PrintSelf(std::ostream & os, Indent indent) const
{
os << indent << "EllipseSpatialObject(" << this << ')' << std::endl;
Superclass::PrintSelf(os, indent);
os << indent << "Object Radii: " << m_RadiusInObjectSpace << std::endl;
os << indent << "Object Center: " << m_CenterInObjectSpace << std::endl;
}
} // end namespace itk
#endif
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