/usr/include/ITK-4.5/itkFrustumSpatialFunction.hxx is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
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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.
*
*=========================================================================*/
#ifndef __itkFrustumSpatialFunction_hxx
#define __itkFrustumSpatialFunction_hxx
#include "itkFrustumSpatialFunction.h"
namespace itk
{
template< unsigned int VImageDimension, typename TInput >
FrustumSpatialFunction< VImageDimension, TInput >::FrustumSpatialFunction()
{
for ( unsigned int i = 0; i < m_Apex.GetPointDimension(); i++ )
{
m_Apex[i] = 0.0f;
}
m_AngleZ = 0.0f;
m_ApertureAngleX = 0.0f;
m_ApertureAngleY = 0.0f;
m_TopPlane = 0.0f;
m_BottomPlane = 0.0f;
m_RotationPlane = RotateInXZPlane;
}
template< unsigned int VImageDimension, typename TInput >
FrustumSpatialFunction< VImageDimension, TInput >::~FrustumSpatialFunction()
{}
template< unsigned int VImageDimension, typename TInput >
typename FrustumSpatialFunction< VImageDimension, TInput >::OutputType
FrustumSpatialFunction< VImageDimension, TInput >
::Evaluate(const InputType & position) const
{
typedef InputType PointType;
typedef typename PointType::VectorType VectorType;
VectorType relativePosition = position - m_Apex;
const double distanceToApex = relativePosition.GetNorm();
// Check Top and Bottom planes.. If the angle is negative, the
// top plane may be less than the bottom plane, but is ok.
if ( m_TopPlane <= m_BottomPlane )
{
if ( distanceToApex < m_TopPlane
|| distanceToApex > m_BottomPlane )
{
return 0;
}
}
else
{
if ( distanceToApex > m_TopPlane
|| distanceToApex < m_BottomPlane )
{
return 0;
}
}
if ( m_RotationPlane == RotateInXZPlane )
{
const double dx = relativePosition[0];
const double dy = relativePosition[1];
const double dz = relativePosition[2];
const double distanceXZ = vcl_sqrt(dx * dx + dz * dz);
const double deg2rad = vcl_atan(1.0f) / 45.0;
// Check planes along Y
const double angleY = vcl_atan2(dy, distanceXZ);
if ( vcl_fabs(angleY) > m_ApertureAngleY * deg2rad )
{
return 0;
}
// Check planes along X
const double angleX = vcl_atan2(dx, dz);
if ( vcl_cos(angleX + ( 180.0 + m_AngleZ ) * deg2rad) <
vcl_cos(deg2rad * m_ApertureAngleX) )
{
return 0;
}
return 1;
}
else if ( m_RotationPlane == RotateInYZPlane )
{
const double dx = relativePosition[0];
const double dy = relativePosition[1];
const double dz = relativePosition[2];
const double distanceYZ = vcl_sqrt(dy * dy + dz * dz);
const double deg2rad = vcl_atan(1.0f) / 45.0;
// Check planes along X
const double angleX = vcl_atan2(dx, distanceYZ);
if ( vcl_fabs(angleX) > m_ApertureAngleX * deg2rad )
{
return 0;
}
// Check planes along Y
const double angleY = vcl_atan2(dy, dz);
if ( vcl_cos(angleY + ( 180.0 + m_AngleZ ) * deg2rad) <
vcl_cos(deg2rad * m_ApertureAngleY) )
{
return 0;
}
return 1;
}
else
{
itkExceptionMacro(<< "Rotation plane not set!");
}
return 0;
}
template< unsigned int VImageDimension, typename TInput >
void
FrustumSpatialFunction< VImageDimension, TInput >::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Apex: " << m_Apex << std::endl;
os << indent << "AngleZ: " << m_AngleZ << std::endl;
os << indent << "ApertureAngleX: " << m_ApertureAngleX << std::endl;
os << indent << "ApertureAngleY: " << m_ApertureAngleY << std::endl;
os << indent << "TopPlane: " << m_TopPlane << std::endl;
os << indent << "BottomPlane: " << m_BottomPlane << std::endl;
os << indent << "RotationPlane: " << m_RotationPlane << std::endl;
}
} // end namespace itk
#endif
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