Gabriele Cosmo
145 lines
6.2 KiB
C++
145 lines
6.2 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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// G4GDMLWriteDefine implementation
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//
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// Author: Zoltan Torzsok, November 2007
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// --------------------------------------------------------------------
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#include "G4GDMLWriteDefine.hh"
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#include "G4SystemOfUnits.hh"
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const G4double G4GDMLWriteDefine::kRelativePrecision = DBL_EPSILON;
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const G4double G4GDMLWriteDefine::kAngularPrecision = DBL_EPSILON;
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const G4double G4GDMLWriteDefine::kLinearPrecision = DBL_EPSILON;
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// --------------------------------------------------------------------
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G4GDMLWriteDefine::G4GDMLWriteDefine()
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: G4GDMLWrite()
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{
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}
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// --------------------------------------------------------------------
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G4GDMLWriteDefine::~G4GDMLWriteDefine()
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{
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}
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// --------------------------------------------------------------------
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G4ThreeVector G4GDMLWriteDefine::GetAngles(const G4RotationMatrix& mtx)
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{
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G4double x, y, z;
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G4RotationMatrix mat = mtx;
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mat.rectify(); // Rectify matrix from possible roundoff errors
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// Direction of rotation given by left-hand rule; clockwise rotation
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static const G4double kMatrixPrecision = 10E-10;
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const G4double cosb = std::sqrt(mtx.xx() * mtx.xx() + mtx.yx() * mtx.yx());
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if(cosb > kMatrixPrecision)
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{
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x = std::atan2(mtx.zy(), mtx.zz());
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y = std::atan2(-mtx.zx(), cosb);
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z = std::atan2(mtx.yx(), mtx.xx());
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}
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else
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{
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x = std::atan2(-mtx.yz(), mtx.yy());
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y = std::atan2(-mtx.zx(), cosb);
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z = 0.0;
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}
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return G4ThreeVector(x, y, z);
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}
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// --------------------------------------------------------------------
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void G4GDMLWriteDefine::Scale_vectorWrite(xercesc::DOMElement* element,
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const G4String& tag,
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const G4String& name,
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const G4ThreeVector& scl)
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{
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const G4double x =
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(std::fabs(scl.x() - 1.0) < kRelativePrecision) ? 1.0 : scl.x();
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const G4double y =
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(std::fabs(scl.y() - 1.0) < kRelativePrecision) ? 1.0 : scl.y();
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const G4double z =
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(std::fabs(scl.z() - 1.0) < kRelativePrecision) ? 1.0 : scl.z();
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xercesc::DOMElement* scaleElement = NewElement(tag);
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scaleElement->setAttributeNode(NewAttribute("name", name));
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scaleElement->setAttributeNode(NewAttribute("x", x));
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scaleElement->setAttributeNode(NewAttribute("y", y));
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scaleElement->setAttributeNode(NewAttribute("z", z));
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element->appendChild(scaleElement);
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}
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// --------------------------------------------------------------------
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void G4GDMLWriteDefine::Rotation_vectorWrite(xercesc::DOMElement* element,
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const G4String& tag,
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const G4String& name,
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const G4ThreeVector& rot)
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{
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const G4double x = (std::fabs(rot.x()) < kAngularPrecision) ? 0.0 : rot.x();
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const G4double y = (std::fabs(rot.y()) < kAngularPrecision) ? 0.0 : rot.y();
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const G4double z = (std::fabs(rot.z()) < kAngularPrecision) ? 0.0 : rot.z();
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xercesc::DOMElement* rotationElement = NewElement(tag);
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rotationElement->setAttributeNode(NewAttribute("name", name));
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rotationElement->setAttributeNode(NewAttribute("x", x / degree));
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rotationElement->setAttributeNode(NewAttribute("y", y / degree));
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rotationElement->setAttributeNode(NewAttribute("z", z / degree));
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rotationElement->setAttributeNode(NewAttribute("unit", "deg"));
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element->appendChild(rotationElement);
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}
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// --------------------------------------------------------------------
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void G4GDMLWriteDefine::Position_vectorWrite(xercesc::DOMElement* element,
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const G4String& tag,
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const G4String& name,
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const G4ThreeVector& pos)
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{
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const G4double x = (std::fabs(pos.x()) < kLinearPrecision) ? 0.0 : pos.x();
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const G4double y = (std::fabs(pos.y()) < kLinearPrecision) ? 0.0 : pos.y();
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const G4double z = (std::fabs(pos.z()) < kLinearPrecision) ? 0.0 : pos.z();
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xercesc::DOMElement* positionElement = NewElement(tag);
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positionElement->setAttributeNode(NewAttribute("name", name));
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positionElement->setAttributeNode(NewAttribute("x", x / mm));
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positionElement->setAttributeNode(NewAttribute("y", y / mm));
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positionElement->setAttributeNode(NewAttribute("z", z / mm));
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positionElement->setAttributeNode(NewAttribute("unit", "mm"));
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element->appendChild(positionElement);
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}
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// --------------------------------------------------------------------
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void G4GDMLWriteDefine::DefineWrite(xercesc::DOMElement* element)
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{
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#ifdef G4VERBOSE
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G4cout << "G4GDML: Writing definitions..." << G4endl;
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#endif
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defineElement = NewElement("define");
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element->appendChild(defineElement);
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}
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