Gabriele Cosmo
180 lines
6.7 KiB
C++
180 lines
6.7 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// G4UExtrudedSolid
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//
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// Class description:
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//
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// Wrapper class for G4ExtrudedSolid to make use of VecGeom ExtrudedSolid.
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// Author: Gabriele Cosmo (CERN), 17.11.2017
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// --------------------------------------------------------------------
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#ifndef G4UEXTRUDEDSOLID_HH
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#define G4UEXTRUDEDSOLID_HH
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#include "G4UAdapter.hh"
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#if ( defined(G4GEOM_USE_USOLIDS) || defined(G4GEOM_USE_PARTIAL_USOLIDS) )
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#include <VecGeom/volumes/UnplacedExtruded.h>
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#include "G4TwoVector.hh"
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#include "G4Polyhedron.hh"
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/**
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* @brief G4UExtrudedSolid is a wrapper class for G4ExtrudedSolid
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* to make use of VecGeom ExtrudedSolid.
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*/
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class G4UExtrudedSolid : public G4UAdapter<vecgeom::UnplacedExtruded>
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{
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using Shape_t = vecgeom::UnplacedExtruded;
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using Base_t = G4UAdapter<vecgeom::UnplacedExtruded>;
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public:
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/**
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* Structure defining a Z section composing the solid.
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*/
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struct ZSection
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{
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ZSection() : fZ(0.), fOffset(0.,0.), fScale(1.) {}
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ZSection(G4double z, const G4TwoVector& offset, G4double scale)
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: fZ(z), fOffset(offset), fScale(scale) {}
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G4double fZ;
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G4TwoVector fOffset;
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G4double fScale;
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};
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/**
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* General constructor for an extruded polygon, through contour and polyline.
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* @param[in] pName The solid name.
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* @param[in] polygon The 2D polygonal contour, i.e. the vertices of the
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* outlined polygon defined in clock-wise order.
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* @param[in] zsections The 3D polyline with scale factors, i.e. the
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* Z-sections defined by Z position in increasing order.
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*/
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G4UExtrudedSolid(const G4String& pName,
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const std::vector<G4TwoVector>& polygon,
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const std::vector<ZSection>& zsections);
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/**
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* Special constructor for an extruded polygon with 2 Z-sections.
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* @param[in] pName The solid name.
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* @param[in] polygon The 2D polygonal contour, i.e. the vertices of the
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* outlined polygon defined in clock-wise order.
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* @param[in] halfZ Half length in Z, i.e. the distance from the origin
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* to the sections.
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* @param[in] off1 (X, Y) position of the first polygon in -halfZ.
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* @param[in] scale1 Scale factor at -halfZ.
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* @param[in] off2 (X, Y) position of the second polygon in +halfZ.
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* @param[in] scale2 Scale factor at +halfZ.
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*/
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G4UExtrudedSolid(const G4String& pName,
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const std::vector<G4TwoVector>& polygon,
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G4double halfZ,
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const G4TwoVector& off1 = G4TwoVector(0.,0.),
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G4double scale1 = 1.,
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const G4TwoVector& off2 = G4TwoVector(0.,0.),
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G4double scale2 = 1. );
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/**
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* Default Destructor.
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*/
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~G4UExtrudedSolid() override = default;
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/**
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* Accessors.
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*/
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G4int GetNofVertices() const;
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G4TwoVector GetVertex(G4int index) const;
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std::vector<G4TwoVector> GetPolygon() const;
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G4int GetNofZSections() const;
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ZSection GetZSection(G4int index) const;
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std::vector<ZSection> GetZSections() const;
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/**
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* Returns the type ID, "G4ExtrudedSolid" of the solid.
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*/
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inline G4GeometryType GetEntityType() const override;
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/**
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* Returns true as the solid has only planar faces.
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*/
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inline G4bool IsFaceted() const override;
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/**
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* Computes the bounding limits of the solid.
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* @param[out] pMin The minimum bounding limit point.
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* @param[out] pMax The maximum bounding limit point.
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*/
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void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
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/**
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* Calculates the minimum and maximum extent of the solid, when under the
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* specified transform, and within the specified limits.
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* @param[in] pAxis The axis along which compute the extent.
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* @param[in] pVoxelLimit The limiting space dictated by voxels.
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* @param[in] pTransform The internal transformation applied to the solid.
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* @param[out] pMin The minimum extent value.
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* @param[out] pMax The maximum extent value.
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* @returns True if the solid is intersected by the extent region.
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*/
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G4bool CalculateExtent(const EAxis pAxis,
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const G4VoxelLimits& pVoxelLimit,
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const G4AffineTransform& pTransform,
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G4double& pMin, G4double& pMax) const override;
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/**
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* Returns a generated polyhedron as graphical representations.
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*/
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G4Polyhedron* CreatePolyhedron() const override;
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/**
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* Copy constructor and assignment operator.
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*/
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G4UExtrudedSolid( const G4UExtrudedSolid& source );
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G4UExtrudedSolid &operator=(const G4UExtrudedSolid& source);
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};
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// --------------------------------------------------------------------
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// Inline methods
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// --------------------------------------------------------------------
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inline G4GeometryType G4UExtrudedSolid::GetEntityType() const
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{
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return "G4ExtrudedSolid";
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}
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inline G4bool G4UExtrudedSolid::IsFaceted() const
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{
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return true;
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}
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#endif // G4GEOM_USE_USOLIDS
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#endif
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