Hello!
I have build all my volumes in HandsOn2. I would like to turn the cylinder inside from the horizontal (position 1) to the vertical position (position 2). I have use G4RotationMatrix* rotationMatrix = new G4RotationMatrix(90*deg,0,0);
rotationMatrix->rotateY(90.*deg);
but it does not walk. What to do please?
thank you in advance