Hi there, I noticed the PyTables conference at CERN and I was wondering: from the examples of the PyTables package, one can easily figure out how to define a nested structure of structures of... etc...
But is there a way to define a column of user tables.IsDescription ? Something like that: class Vertex(IsDescription): position = FloatCol( dflt=0., shape=3 ) class Particle(IsDescription): fourMomentum = FloatCol( dflt=0., shape=4 ) idCode = IntCol( dflt=0, shape=1) productionVtx= Vertex() decayVtx = Vertex() class Particles(IsDescription): particles = MakeCol(Particle) #<== here is the tricky part class Event(IsDescription): electrons = Particles() photons = Particles() neutrinos = Particles() An Event is hence made from several collections of particles which are themselves made from a production and a decay vertices, a four-momentum and some barcode to distinguish between different types of particles. Of course I don't know a priori the number of electrons and photons I can find in each of my events... Any hint on how to model this event structure ? Cheers, Sebastien. -- ################################### # Sebastien Binet # # Lawrence Berkeley National Lab. # # 1 Cyclotron Road # # Berkeley, CA 94720 # ################################### Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Pytables-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/pytables-users
