Use of G4Box to create rectangles - Directions

valeriacellamare · April 6, 2023, 8:33am

Hi guys,

I have a question about the constructor of the G4Box class. When I create a “box” is there a predefined direction for its creation? I mean, If I want a rectangle with basis x mm (along the x axis), length y mm (along y… so the rectangle is parallel to Y) and z along Z, should I write

G4Box(“name”, 0.5x, 0.5y,0.5*z)?

Thanks

weller · April 6, 2023, 9:52am

github.com

Geant4/geant4/blob/master/source/geometry/solids/CSG/src/G4Box.cc#L52


      
          
          
#include "G4VPVParameterisation.hh"
          
          
#include "G4VGraphicsScene.hh"
          #include "G4VisExtent.hh"
          
          
////////////////////////////////////////////////////////////////////////
          //
          // Constructor - check & set half widths
          
          
G4Box::G4Box(const G4String& pName,
                             G4double pX,
                             G4double pY,
                             G4double pZ)
            : G4CSGSolid(pName), fDx(pX), fDy(pY), fDz(pZ)
          {
            delta = 0.5*kCarTolerance;
            if (pX < 2*kCarTolerance ||
                pY < 2*kCarTolerance ||
                pZ < 2*kCarTolerance)  // limit to thickness of surfaces
            {

exactly as you say.

system · April 13, 2023, 9:52am

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