Import Geant4 8.1.0 source tree
This commit is contained in:
Gabriele Cosmo
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//
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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 and of QinetiQ Ltd, *
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// * subject DEFCON 705 IPR conditions. *
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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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// $Id: G4QuadrangularFacet.cc,v 1.3 2006/06/29 18:48:51 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// MODULE: G4QuadrangularFacet.cc
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//
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// Date: 15/06/2005
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// Author: P R Truscott
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// Organisation: QinetiQ Ltd, UK
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// Customer: UK Ministry of Defence : RAO CRP TD Electronic Systems
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// Contract: C/MAT/N03517
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// CHANGE HISTORY
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// --------------
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//
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// 31 October 2004, P R Truscott, QinetiQ Ltd, UK - Created.
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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#include "G4QuadrangularFacet.hh"
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#include "globals.hh"
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///////////////////////////////////////////////////////////////////////////////
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//
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// !!!THIS IS A FUDGE!!! IT'S TWO ADJACENT G4TRIANGULARFACETS
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// --- NOT EFFICIENT BUT PRACTICAL.
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//
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G4QuadrangularFacet::G4QuadrangularFacet (const G4ThreeVector Pt0,
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const G4ThreeVector vt1, const G4ThreeVector vt2,
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const G4ThreeVector vt3, G4FacetVertexType vertexType)
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: G4VFacet()
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{
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P0 = Pt0;
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nVertices = 4;
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if (vertexType == ABSOLUTE)
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{
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P.push_back(vt1);
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P.push_back(vt2);
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P.push_back(vt3);
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E.push_back(vt1 - P0);
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E.push_back(vt2 - P0);
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E.push_back(vt3 - P0);
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}
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else
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{
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P.push_back(P0 + vt1);
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P.push_back(P0 + vt2);
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P.push_back(P0 + vt3);
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E.push_back(vt1);
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E.push_back(vt2);
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E.push_back(vt3);
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}
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G4double length1 = E[0].mag();
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G4double length2 = (P[1]-P[0]).mag();
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G4double length3 = (P[2]-P[1]).mag();
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G4double length4 = E[2].mag();
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G4ThreeVector normal1 = E[0].cross(E[1]).unit();
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G4ThreeVector normal2 = E[1].cross(E[2]).unit();
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if (length1 <= kCarTolerance || length2 <= kCarTolerance ||
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length3 <= kCarTolerance || length4 <= kCarTolerance ||
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normal1.dot(normal2) < 0.9999999999)
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{
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G4Exception("G4QuadrangularFacet::G4QuadrangularFacet()",
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"InvalidSetup", JustWarning,
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"Length of sides of facet are too small or sides not planar.");
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G4cerr << G4endl;
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G4cerr << "P0 = " << P0 << G4endl;
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G4cerr << "P1 = " << P[0] << G4endl;
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G4cerr << "P2 = " << P[1] << G4endl;
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G4cerr << "P3 = " << P[2] << G4endl;
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G4cerr << "Side lengths = P0->P1" << length1 << G4endl;
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G4cerr << "Side lengths = P1->P2" << length2 << G4endl;
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G4cerr << "Side lengths = P2->P3" << length3 << G4endl;
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G4cerr << "Side lengths = P3->P0" << length4 << G4endl;
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G4cerr << G4endl;
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isDefined = false;
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geometryType = "G4QuadragularFacet";
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surfaceNormal = G4ThreeVector(0.0,0.0,0.0);
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}
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else
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{
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isDefined = true;
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geometryType = "G4QuadrangularFacet";
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facet1 = new G4TriangularFacet(P0,P[0],P[1],ABSOLUTE);
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facet2 = new G4TriangularFacet(P0,P[1],P[2],ABSOLUTE);
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surfaceNormal = normal1;
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G4ThreeVector vtmp = 0.5 * (E[0] + E[1]);
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centroid = P0 + vtmp;
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radiusSqr = vtmp.mag2();
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radius = std::sqrt(radiusSqr);
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for (size_t i=0; i<4; i++) I.push_back(0);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4QuadrangularFacet::~G4QuadrangularFacet ()
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{
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if (facet1 != 0) delete facet1;
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if (facet2 != 0) delete facet2;
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P.clear();
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E.clear();
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I.clear();
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4VFacet *G4QuadrangularFacet::GetClone ()
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{
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G4QuadrangularFacet *c =
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new G4QuadrangularFacet (P0, P[0], P[1], P[2], ABSOLUTE);
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G4VFacet *cc = 0;
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cc = c;
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return cc;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4ThreeVector G4QuadrangularFacet::Distance (const G4ThreeVector &p)
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{
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G4ThreeVector v1 = facet1->Distance(p);
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G4ThreeVector v2 = facet2->Distance(p);
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if (v1.mag2() < v2.mag2()) return v1;
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else return v2;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4double G4QuadrangularFacet::Distance (const G4ThreeVector &p,
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const G4double)
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{
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/*G4ThreeVector D = P0 - p;
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G4double d = E[0].dot(D);
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G4double e = E[1].dot(D);
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G4double s = b*e - c*d;
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G4double t = b*d - a*e;*/
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G4double dist = kInfinity;
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/*if (s+t > 1.0 || s < 0.0 || t < 0.0)
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{
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G4ThreeVector D0 = P0 - p;
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G4ThreeVector D1 = P[0] - p;
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G4ThreeVector D2 = P[1] - p;
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G4double d0 = D0.mag();
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G4double d1 = D1.mag();
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G4double d2 = D2.mag();
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dist = min(d0, min(d1, d2));
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if (dist > minDist) return kInfinity;
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}*/
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dist = Distance(p).mag();
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return dist;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4double G4QuadrangularFacet::Distance (const G4ThreeVector &p,
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const G4double, const G4bool outgoing)
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{
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/*G4ThreeVector D = P0 - p;
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G4double d = E[0].dot(D);
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G4double e = E[1].dot(D);
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G4double s = b*e - c*d;
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G4double t = b*d - a*e;*/
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G4double dist = kInfinity;
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/*if (s+t > 1.0 || s < 0.0 || t < 0.0)
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{
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G4ThreeVector D0 = P0 - p;
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G4ThreeVector D1 = P[0] - p;
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G4ThreeVector D2 = P[1] - p;
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G4double d0 = D0.mag();
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G4double d1 = D1.mag();
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G4double d2 = D2.mag();
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dist = min(d0, min(d1, d2));
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if (dist > minDist ||
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(D0.dot(surfaceNormal) > 0.0 && !outgoing) ||
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(D0.dot(surfaceNormal) < 0.0 && outgoing)) return kInfinity;
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}*/
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G4ThreeVector v = Distance(p);
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G4double dir = v.dot(surfaceNormal);
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if ((dir > dirTolerance && !outgoing) ||
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(dir <-dirTolerance && outgoing)) dist = kInfinity;
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else dist = v.mag();
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return dist;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4double G4QuadrangularFacet::Extent (const G4ThreeVector axis)
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{
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G4double s = P0.dot(axis);
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for (G4ThreeVectorList::iterator it=P.begin(); it!=P.end(); it++)
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{
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G4double sp = it->dot(axis);
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if (sp > s) s = sp;
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}
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return s;
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}
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///////////////////////////////////////////////////////////////////////////////
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//
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G4bool G4QuadrangularFacet::Intersect (const G4ThreeVector &p,
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const G4ThreeVector &v, G4bool outgoing, G4double &distance,
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G4double &distFromSurface, G4ThreeVector &normal)
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{
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G4bool intersect =
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facet1->Intersect(p,v,outgoing,distance,distFromSurface,normal);
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if (!intersect)
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intersect =
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facet2->Intersect(p,v,outgoing,distance,distFromSurface,normal);
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if (!intersect)
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{
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distance = kInfinity;
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distFromSurface = kInfinity;
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normal = G4ThreeVector(0.0,0.0,0.0);
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}
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return intersect;
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}
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