lars/geant4
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
96c8bcd0af6199eb0c12c400a8498add55e6c23e
geant4/source/geometry/solids/specific/include/G4VTwistSurface.icc
T
Gabriele Cosmo 96c8bcd0af Import Geant4 9.1.0 source tree
2016-06-09 15:37:50 +02:00

382 lines
13 KiB
Plaintext
Raw Blame History

//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
// $Id: G4VTwistSurface.icc,v 1.3 2006/06/29 18:48:20 gunter Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
//
// --------------------------------------------------------------------
// G4VTwistSurface class inline methods
//
// Author:
// 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp)
//
// History:
// 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4
// from original version in Jupiter-2.5.02 application.
// --------------------------------------------------------------------
//=====================================================================
//* DistanceToPlaneWithV ----------------------------------------------
inline
G4double G4VTwistSurface::DistanceToPlaneWithV(const G4ThreeVector &p,
const G4ThreeVector &v,
const G4ThreeVector &x0,
const G4ThreeVector &n0,
G4ThreeVector &xx)
{
G4double t = (n0 * (x0 - p)) / (n0 * v);
xx = p + t * v;
return t;
}
//=====================================================================
//* DistanceToPlane ---------------------------------------------------
inline
G4double G4VTwistSurface::DistanceToPlane(const G4ThreeVector &p,
const G4ThreeVector &x0,
const G4ThreeVector &n0,
G4ThreeVector &xx)
{
// DistanceToPlane :
// Calculate distance to plane in local coordinate,
// then return distance and global intersection points.
//
// p - location of flying particle
// x0 - reference point of surface
// xx - a foot of perpendicular line from p to the plane
// t - distance from xx to p
// n - a unit normal of this plane from plane to p.
//
// equation of plane:
// n*(x - x0) = 0;
//
// vector to xx:
// xx = p - t*n
//
// where
// t = n * (p - x0) / std::abs(n)
//
G4double t;
G4ThreeVector n = n0.unit();
t = n * (p - x0);
xx = p - t * n;
return t;
}
//=====================================================================
//* DistanceToPlane ---------------------------------------------------
inline
G4double G4VTwistSurface::DistanceToPlane(const G4ThreeVector &p,
const G4ThreeVector &x0,
const G4ThreeVector &t1,
const G4ThreeVector &t2,
G4ThreeVector &xx,
G4ThreeVector &n)
{
// DistanceToPlane :
// Calculate distance to plane in local coordinate,
// then return distance and global intersection points.
// t1 - 1st. vector lying on the plane
// t2 - 2nd. vector lying on the plane
n = (t1.cross(t2)).unit();
return DistanceToPlane(p, x0, n, xx);
}
//=====================================================================
//* DistanceToLine ----------------------------------------------------
inline
G4double G4VTwistSurface::DistanceToLine(const G4ThreeVector &p,
const G4ThreeVector &x0,
const G4ThreeVector &d,
G4ThreeVector &xx)
{
// DistanceToLine :
// Calculate distance to line,
// then return distance and global intersection points.
//
// p - location of flying particle
// x0 - reference point of line
// d - direction vector of line
// xx - a foot of perpendicular line from p to the plane
// t - distance from xx to p
//
// Equation
//
// distance^2 = |(xx - p)|^2
// with
// xx = x0 + t*d
//
// (d/dt)distance^2 = (d/dt)|((x0 + t*d) - p)|^2
// = 2*t*|d|^2 + 2*d*(x0 - p)
// = 0 // smallest distance
// then
// t = - d*(x0 - p) / |d|^2
//
G4double t;
G4ThreeVector dir = d.unit();
t = - dir * (x0 - p); // |dir|^2 = 1.
xx = x0 + t * dir;
G4ThreeVector dist = xx - p;
return dist.mag();
}
//=====================================================================
//* IsAxis0 -----------------------------------------------------------
inline
G4bool G4VTwistSurface::IsAxis0(G4int areacode) const
{
if (areacode & sAxis0) return true;
return false;
}
//=====================================================================
//* IsAxis1 -----------------------------------------------------------
inline
G4bool G4VTwistSurface::IsAxis1(G4int areacode) const
{
if (areacode & sAxis1) return true;
return false;
}
//=====================================================================
//* IsOutside ---------------------------------------------------------
inline
G4bool G4VTwistSurface::IsOutside(G4int areacode) const
{
if (areacode & sInside) return false;
return true;
}
//=====================================================================
//* IsInside ----------------------------------------------------------
inline
G4bool G4VTwistSurface::IsInside(G4int areacode, G4bool testbitmode) const
{
if (areacode & sInside) {
if (testbitmode) {
return true;
} else {
if (!((areacode & sBoundary) || (areacode & sCorner))) return true;
}
}
return false;
}
//=====================================================================
//* IsBoundary --------------------------------------------------------
inline
G4bool G4VTwistSurface::IsBoundary(G4int areacode, G4bool testbitmode) const
{
if ((areacode & sBoundary) == sBoundary) {
if (testbitmode) {
return true;
} else {
if ((areacode & sInside) == sInside) return true;
}
}
return false;
}
//=====================================================================
//* IsCorner ----------------------------------------------------------
inline
G4bool G4VTwistSurface::IsCorner(G4int areacode, G4bool testbitmode) const
{
if ((areacode & sCorner) == sCorner) {
if (testbitmode) {
return true;
} else {
if ((areacode & sInside) == sInside) return true;
}
}
return false;
}
//=====================================================================
//* GetAxisType -------------------------------------------------------
inline
G4int G4VTwistSurface::GetAxisType(G4int areacode, G4int whichaxis) const
{
G4int axiscode = areacode & sAxisMask & whichaxis;
if (axiscode == (sAxisX & sAxis0) ||
axiscode == (sAxisX & sAxis1)) {
return sAxisX;
} else if (axiscode == (sAxisY & sAxis0) ||
axiscode == (sAxisY & sAxis1)) {
return sAxisY;
} else if (axiscode == (sAxisZ & sAxis0) ||
axiscode == (sAxisZ & sAxis1)) {
return sAxisZ;
} else if (axiscode == (sAxisRho & sAxis0) ||
axiscode == (sAxisRho & sAxis1)) {
return sAxisRho;
} else if (axiscode == (sAxisPhi & sAxis0) ||
axiscode == (sAxisPhi & sAxis1)) {
return sAxisPhi;
} else {
G4cerr << "ERROR - G4VTwistSurface::GetAxisType()" << G4endl
<< " areacode = " << areacode << G4endl;
G4Exception("G4VTwistSurface::GetAxisType()","NotSupported",
FatalException, "Configuration not supported.");
}
return 1;
}
//=====================================================================
//* ComputeGlobalPoint ------------------------------------------------
inline
G4ThreeVector G4VTwistSurface::ComputeGlobalPoint(const G4ThreeVector &lp) const
{
return fRot * G4ThreeVector(lp) + fTrans;
}
//=====================================================================
//* ComputeGlobalPoint ------------------------------------------------
inline
G4ThreeVector G4VTwistSurface::ComputeLocalPoint(const G4ThreeVector &gp) const
{
return fRot.inverse() * ( G4ThreeVector(gp) - fTrans ) ;
}
//=====================================================================
//* ComputeGlobalDirection --------------------------------------------
inline
G4ThreeVector G4VTwistSurface::ComputeGlobalDirection(const G4ThreeVector &lp) const
{
return fRot * G4ThreeVector(lp);
}
//=====================================================================
//* ComputeLocalDirection ---------------------------------------------
inline
G4ThreeVector G4VTwistSurface::ComputeLocalDirection(const G4ThreeVector &gp) const
{
return fRot.inverse() * G4ThreeVector(gp);
}
//=====================================================================
//* SetNeighbours -----------------------------------------------------
inline
void G4VTwistSurface::SetNeighbours(G4VTwistSurface* axis0min, G4VTwistSurface* axis1min,
G4VTwistSurface* axis0max, G4VTwistSurface* axis1max)
{
fNeighbours[0] = axis0min;
fNeighbours[1] = axis1min;
fNeighbours[2] = axis0max;
fNeighbours[3] = axis1max;
}
//=====================================================================
//* GetNeighbours -----------------------------------------------------
inline
G4int G4VTwistSurface::GetNeighbours(G4int areacode, G4VTwistSurface** surfaces)
{
int sAxis0Min = sAxis0 & sAxisMin ;
int sAxis1Min = sAxis1 & sAxisMin ;
int sAxis0Max = sAxis0 & sAxisMax ;
int sAxis1Max = sAxis1 & sAxisMax ;
G4int i = 0;
if ( (areacode & sAxis0Min ) == sAxis0Min ) {
surfaces[i] = fNeighbours[0] ;
i++ ;
}
if ( ( areacode & sAxis1Min ) == sAxis1Min ) {
surfaces[i] = fNeighbours[1] ;
i++ ;
if ( i == 2 ) return i ;
}
if ( ( areacode & sAxis0Max ) == sAxis0Max ) {
surfaces[i] = fNeighbours[2] ;
i++ ;
if ( i == 2 ) return i ;
}
if ( ( areacode & sAxis1Max ) == sAxis1Max ) {
surfaces[i] = fNeighbours[3] ;
i++ ;
if ( i == 2 ) return i ;
}
return i ;
}
//=====================================================================
//* GetCorner ---------------------------------------------------------
inline
G4ThreeVector G4VTwistSurface::GetCorner(G4int areacode) const
{
if (!(areacode & sCorner)){
G4cerr << "ERROR - G4VTwistSurface::GetCorner()" << G4endl
<< " areacode = " << areacode << G4endl;
G4Exception("G4VTwistSurface::GetCorner()","InvalidSetup",
FatalException, "Area code must represent corner.");
}
if ((areacode & sC0Min1Min) == sC0Min1Min) {
return fCorners[0];
} else if ((areacode & sC0Max1Min) == sC0Max1Min) {
return fCorners[1];
} else if ((areacode & sC0Max1Max) == sC0Max1Max) {
return fCorners[2];
} else if ((areacode & sC0Min1Max) == sC0Min1Max) {
return fCorners[3];
} else {
G4cerr << "ERROR - G4VTwistSurface::GetCorner()" << G4endl
<< " areacode = " << areacode << G4endl;
G4Exception("G4VTwistSurface::GetCorner()", "NotSupported",
FatalException, "Configuration not supported.");
}
return fCorners[0];
}
Reference in New Issue View Git Blame Copy Permalink