tracking::geo::DetectorElement Class Reference

Public Member Functions
	DetectorElement (const std::shared_ptr< Acts::Surface > &surface, const Acts::Transform3 &default_transform, double thickness)
Acts::Transform3	uncorrectedTransform () const
const Acts::Transform3 &	transform (const Acts::GeometryContext &gctx) const override
const Acts::Surface &	surface () const override
Acts::Surface &	surface () override
double	thickness () const override
Acts::GeometryIdentifier	geometryId () const

Private Attributes
Acts::Transform3	m_transform_ = Acts::Transform3::Identity()
std::shared_ptr< Acts::Surface >	m_surface_
double	m_thickness_

Detailed Description

Definition at line 19 of file DetectorElement.h.

Constructor & Destructor Documentation

DetectorElement()

tracking::geo::DetectorElement::DetectorElement ( const std::shared_ptr< Acts::Surface > & surface, const Acts::Transform3 & default_transform, double thickness )

inline

Definition at line 27 of file DetectorElement.h.

                                                                             {
    m_surface_ = surface;
    m_thickness_ = thickness;
 
    // This is the local to global transformation
    m_transform_ = default_transform;
  }

~DetectorElement()

tracking::geo::DetectorElement::~DetectorElement ( )

override

Definition at line 7 of file DetectorElement.cxx.

{};

Member Function Documentation

geometryId()

Acts::GeometryIdentifier tracking::geo::DetectorElement::geometryId ( ) const

inline

Definition at line 68 of file DetectorElement.h.

                                            {
    if (!m_surface_)
      throw std::logic_error("DetectorElement:: surface not assigned");
 
    return (m_surface_->geometryId());
  }

surface() [1/2]

const Acts::Surface & tracking::geo::DetectorElement::surface ( ) const

override

Definition at line 50 of file DetectorElement.cxx.

                                                  {
  if (!m_surface_)
    throw std::logic_error(
        "DetectorElement::Attempted to return reference of null ptr");
  return *m_surface_;
}

surface() [2/2]

Acts::Surface & tracking::geo::DetectorElement::surface ( )

override

Definition at line 56 of file DetectorElement.cxx.

                                      {
  if (!m_surface_)
    throw std::logic_error(
        "DetectorElement::Attempted to return reference of null ptr");
  return *m_surface_;
}

thickness()

double tracking::geo::DetectorElement::thickness ( ) const

override

Definition at line 65 of file DetectorElement.cxx.

                                        {
  // return m_thickness;
  auto material = static_cast<const Acts::HomogeneousSurfaceMaterial*>(
      m_surface_->surfaceMaterial());
  return material->materialSlab(Acts::Vector2{0., 0.}).thickness();
}

transform()

const Acts::Transform3 & tracking::geo::DetectorElement::transform ( const Acts::GeometryContext & gctx ) const

override

Definition at line 9 of file DetectorElement.cxx.

                                           {
  if (!m_surface_)
    throw std::logic_error("DetectorElement:: Sensor/Element ID not set");
 
  // The elementId will be valid only after tracking geometry is built
  // I will use this fact to return the default transform in order to build
  // always the same default tracking geometry and modify later the sensor
  // transformations.
 
  unsigned int element_id = unpackGeometryIdentifier(m_surface_->geometryId());
 
  // Check if the elementId is valid
  if (element_id > 9999) {
    // elementId not valid: return default transformation
    return m_transform_;
  }
 
  auto ctx = gctx.get<GeometryContext*>();
 
  // Found the aligned transform for this sensor
  if ((ctx->alignment_map_).count(element_id) > 0) {
    const Acts::Transform3& c_transform = ctx->alignment_map_[element_id];
 
    if (false) {
      // TODO : Have this in the logging system
      std::cout << "Aligned transform" << std::endl;
      std::cout << c_transform.translation() << std::endl;
      std::cout << c_transform.rotation() << std::endl;
      std::cout << "Original transform" << std::endl;
      std::cout << m_transform_.translation() << std::endl;
      std::cout << m_transform_.rotation() << std::endl;
    }
 
    return c_transform;
  }
 
  else
    return m_transform_;
}

uncorrectedTransform()

Acts::Transform3 tracking::geo::DetectorElement::uncorrectedTransform ( ) const

inline

Definition at line 40 of file DetectorElement.h.

{ return m_transform_; }

Member Data Documentation

m_surface_

std::shared_ptr<Acts::Surface> tracking::geo::DetectorElement::m_surface_

private

Definition at line 79 of file DetectorElement.h.

m_thickness_

double tracking::geo::DetectorElement::m_thickness_

private

Definition at line 80 of file DetectorElement.h.

m_transform_

Acts::Transform3 tracking::geo::DetectorElement::m_transform_ = Acts::Transform3::Identity()

private

Definition at line 77 of file DetectorElement.h.

---

The documentation for this class was generated from the following files:

• Tracking/include/Tracking/geo/DetectorElement.h
• Tracking/src/Tracking/geo/DetectorElement.cxx