moleculardna/src/CylindricalChromosome.cc

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0025 //
0026 //
0027 /// file: CylindricalChromosome.cc
0028 /// brief: Implementation of virt chromosome class for cylindrical chromosomes
0029
0030 #include "CylindricalChromosome.hh"
0031
0032 #include "G4PhysicalConstants.hh"
0033 #include "G4RandomDirection.hh"
0034 #include "Randomize.hh"
0035
0036 #include <utility>
0037
0038 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0039
0040 const G4String CylindricalChromosome::fShape = "cyl";
0041
0042 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0043
0044 CylindricalChromosome::CylindricalChromosome(const G4String& name, const G4ThreeVector& pos,
0045                                              const G4double& radius, const G4double& height)
0046   : VirtualChromosome(name),
0047     fCenter(pos),
0048     fRadius(radius),
0049     fHeight(height),
0050     fRotation(G4RotationMatrix())
0051 {
0052   fInverseRotation = fRotation.inverse();
0053 }
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 CylindricalChromosome::CylindricalChromosome(const G4String& name, const G4ThreeVector& pos,
0058                                              const G4double& radius, const G4double& height,
0059                                              const G4RotationMatrix& rot)
0060   : VirtualChromosome(name), fCenter(pos), fRadius(radius), fHeight(height), fRotation(rot)
0061 {
0062   fInverseRotation = fRotation.inverse();
0063 }
0064
0065 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0066
0067 bool CylindricalChromosome::PointInChromosome(G4ThreeVector const& pos)
0068 {
0069   G4ThreeVector rpos = pos - fCenter;
0070   rpos = fInverseRotation(rpos);
0071
0072   G4bool height_ok;
0073   G4bool radius_ok;
0074   G4double height;
0075   G4double rad2;
0076
0077   height = std::abs(rpos.getZ());
0078   rad2 = rpos.getX() * rpos.getX() + rpos.getY() * rpos.getY();
0079
0080   height_ok = (height < fHeight);
0081   radius_ok = (rad2 < (fRadius * fRadius));
0082
0083   return height_ok && radius_ok;
0084 }
0085 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0086
0087 G4ThreeVector CylindricalChromosome::RandomPointInChromosome()
0088 {
0089   G4ThreeVector point;
0090   G4double z = 2 * (G4UniformRand() - 0.5) * fHeight;
0091   G4double theta = twopi * G4UniformRand();
0092   G4double r = fRadius * std::pow(G4UniformRand(), 0.5);
0093   G4double x = r * std::cos(theta);
0094   G4double y = r * std::sin(theta);
0095   point = G4ThreeVector(x, y, z);
0096   point = fRotation(point) + fCenter;
0097
0098   return point;
0099 }
0100
0101 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......