|Message: Description of the angle 'alpha' in G4Para()||Not Logged In (login)|
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Hi, In the User's Guide for Application Developers (4.7.0), the variable 'alpha' of G4Para() G4Para(const G4String& pName, G4double dx, G4double dy, G4double dz, G4double alpha, G4double theta, G4double phi) is described as an "Angle formed by the y axis and by the plane joining the centre of the faces parallel to the z-x plane at -dy and +dy". But looking at the created volumes using the constructor, there is no faces parallel to the z-x plane (in general). There seems to be two parallelograms parallel to the x-y plane, one pair of sides parallel to the x axis and the other forming angle 'alpha' with respect to the y axis. Is it better to describe 'alpha' as an "Angle formed by the y axis and by a pair of sides of the parallelograms which are parallel to the x-y plane"? (if it's correct) By the way, the description of G4Para() in SRM (and also in G4Para.hh) reads "... and the plane joinng the centre of the faces G4Parallel to...". ~~~~~~ ~~~~~~~~~~ (the latter occured again in the description of 'alpha') Kazuyoshi
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