moleculardna/src/EllipticalChromosome.cc

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0025 //
0026 //
0027 /// file: EllipticalChromosome.cc
0028 /// brief: Implementation of virt chromosome class for rod chromosomes
0029
0030 #include "EllipticalChromosome.hh"
0031
0032 #include "G4PhysicalConstants.hh"
0033 #include "G4RandomDirection.hh"
0034 #include "Randomize.hh"
0035
0036 const G4String EllipticalChromosome::fShape = "ellipse";
0037
0038 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0039
0040 EllipticalChromosome::EllipticalChromosome(const G4String& name, const G4ThreeVector& pos,
0041                                            const G4double& sx, const G4double& sy,
0042                                            const G4double& sz)
0043   : VirtualChromosome(name),
0044     fCenter(pos),
0045     fSemiX(std::abs(sx)),
0046     fSemiY(std::abs(sy)),
0047     fSemiZ(std::abs(sz)),
0048     fRotation(G4RotationMatrix())
0049 {
0050   fInverseRotation = fRotation.inverse();
0051 }
0052 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0053
0054 EllipticalChromosome::EllipticalChromosome(const G4String& name, const G4ThreeVector& pos,
0055                                            const G4double& sx, const G4double& sy,
0056                                            const G4double& sz, const G4RotationMatrix& rot)
0057   : VirtualChromosome(name),
0058     fCenter(pos),
0059     fSemiX(std::abs(sx)),
0060     fSemiY(std::abs(sy)),
0061     fSemiZ(std::abs(sz)),
0062     fRotation(rot)
0063 {
0064   fInverseRotation = fRotation.inverse();
0065 }
0066
0067 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0068
0069 EllipticalChromosome::~EllipticalChromosome() = default;
0070
0071 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0072
0073 G4bool EllipticalChromosome::PointInChromosome(G4ThreeVector const& pos)
0074 {
0075   G4ThreeVector rpos = pos - fCenter;
0076   rpos = fInverseRotation(rpos);
0077
0078   //====================dousatsu=========================
0079   G4bool ok = ((std::pow(rpos.getX(), 2) / std::pow(fSemiX, 2)
0080                 + std::pow(rpos.getY(), 2) / std::pow(fSemiY, 2)
0081                 + std::pow(rpos.getZ(), 2) / std::pow(fSemiZ, 2))
0082                <= 1.);
0083   //====================dousatsu=========================
0084   //// TODO: This is a box, not an ellipsoid
0085   //// Check that (x/a)**2 + (y/b)**2 + (z/c)**2 <= 1 instead
0086   // G4bool ok = (std::abs(rpos.getX()) <= fSemiX);
0087   // ok = ok && (std::abs(rpos.getY()) <= fSemiY);
0088   // ok = ok && (std::abs(rpos.getZ()) <= fSemiZ);
0089
0090   return ok;
0091 }
0092
0093 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0094
0095 // NOTE: Not uniformly random
0096 G4ThreeVector EllipticalChromosome::RandomPointInChromosome()
0097 {
0098   G4ThreeVector point = G4UniformRand() * G4RandomDirection();
0099   point.setX(point.getX() * fSemiX);
0100   point.setY(point.getY() * fSemiY);
0101   point.setZ(point.getZ() * fSemiZ);
0102   return fCenter + fRotation(point);
0103 }
0104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......