F04ElementField.hh

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#ifndef F04ElementField_h
#define F04ElementField_h 1

#include "globals.hh"

#include "G4Navigator.hh"
#include "G4TransportationManager.hh"

#include "G4UserLimits.hh"
#include "G4VisAttributes.hh"

//  class F04ElementField - interface for the EM field of one element

//  This is the interface class used by GlobalField to compute the field
//  value at a given point[].

//  An element that represents an element with an EM field will
//  derive a class from this one and implement the computation for the
//  element. The Construct() function will add the derived object into
//  GlobalField.

class F04ElementField 
{

  private:

    F04ElementField& operator=(const F04ElementField&);

  public:

    F04ElementField(const G4ThreeVector, G4LogicalVolume*);

    void Construct();

    virtual ~F04ElementField() { if (fNavigator) delete fNavigator; }

    void SetMaxStep(G4double stp)
    {
      fMaxStep = stp;
      fUserLimits->SetMaxAllowedStep(fMaxStep);
      fVolume->SetUserLimits(fUserLimits);
    }

    G4double GetMaxStep() { return fMaxStep; }

    void SetColor(G4String c)
    {
      fColor = c;
      fVolume->SetVisAttributes(GetVisAttribute(fColor));
    }

    G4String GetColor() { return fColor; }

    static G4VisAttributes* GetVisAttribute(G4String color);

    void SetGlobalPoint(const G4double point[4])
    {
      if(fMinX == -DBL_MAX || fMinX > point[0]) fMinX = point[0];
      if(fMinY == -DBL_MAX || fMinY > point[1]) fMinY = point[1];
      if(fMinZ == -DBL_MAX || fMinZ > point[2]) fMinZ = point[2];
      if(fMaxX ==  DBL_MAX || fMaxX < point[0]) fMaxX = point[0];
      if(fMaxY ==  DBL_MAX || fMaxY < point[1]) fMaxY = point[1];
      if(fMaxZ ==  DBL_MAX || fMaxZ < point[2]) fMaxZ = point[2];
    }

    bool IsInBoundingBox(const G4double point[4]) const
    {
      if(point[2] < fMinZ || point[2] > fMaxZ) return false;
      if(point[0] < fMinX || point[0] > fMaxX) return false;
      if(point[1] < fMinY || point[1] > fMaxY) return false;
      return true;
    }

    virtual void
        AddFieldValue(const G4double point[4], G4double field[6]) const = 0;

    virtual G4double GetLength() = 0;
    virtual G4double GetWidth()  = 0;
    virtual G4double GetHeight() = 0;

  protected:

    G4LogicalVolume* fVolume;

    G4AffineTransform fGlobal2local;

//    F04ElementField(const F04ElementField&);

  private:

    static G4Navigator* fNavigator;

    G4String fColor;

    G4ThreeVector fCenter;
    G4double fMinX, fMinY, fMinZ, fMaxX, fMaxY, fMaxZ;

    G4double fMaxStep;
    G4UserLimits* fUserLimits;

};

#endif