In This Package:

PlotAlg.py

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#!/usr/bin/env python
'''
A simple Python algorithm to test drawing in a TCanvas

Example:

nuwa.py -E EventLooper.Gui -m EventLooper.PlotAlg --raw-load=both --no-history -n 10 ~/daq.NoTag.0006291.Physics.SAB-AD2.SFO-1._0001.data 


'''

import GaudiPython as gp
from DybPython.DybPythonAlg import DybPythonAlg

class plotter(DybPythonAlg):
    def __init__(self,name):
        DybPythonAlg.__init__(self,name)
        return

    def initialize(self):
        status = DybPythonAlg.initialize(self)
        if status.isFailure(): return status
        import ROOT
        self.canvas = ROOT.TCanvas('plotalg_canvas','gaussian')
        self.histogram = ROOT.TH1D("plotalg_gaussian","gaussian",200,-10,10)
        self.histogram.Draw()
        return status

    def execute(self):
        self.histogram.FillRandom("gaus")
        self.canvas.Modified()
        self.canvas.Update()
        return gp.SUCCESS

    def finalize(self):
        status = DybPythonAlg.finalize(self)
        return status

    pass

def run(app):
    alg = plotter("plotter")
    app.addAlgorithm(alg)
    return

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