def __init__(self):
## Beam properties
self.beamdata = self.getDefaultBeamdata()
self.twiss = self.getDefaultTwiss()
self.multipart = gaussianTwiss3D(self.beamdata[5], self.twiss)
self.envelope = envelopeFromMultipart(self.multipart)
# empty lattice
self.lattice = Lattice("Facility", self.beamdata, self.twiss, self.multipart)
def generateMultipart(self, nbrOfParticles, twiss):
multipart = gaussianTwiss3D(nbrOfParticles, twiss)
self.setMultipart(multipart)
