TWaveform
ROOT-based framework to save waveforms. This is work based on my experience with Majorana and EXO in developing how to save and deal with waveforms in ROOT.
M. Marino, 2012
Installation:
Generally,
./configure make [-j#]
Usage:
# In python:
import ROOT
ROOT.gSystem.Load("/path/to/libWaveWaveBase")
# numpy is important when converting to/from numpy
import numpy
# create a waveform
wf = ROOT.TDoubleWaveform()
# generate from a numpy waveform
arr = numpy.array([0.1*x for x in range(1000)])
wf = ROOT.TDoubleWaveform(arr, len(arr))
# convert to numpy waveform
# following is SLOW
arr = numpy.array(wf)
# following is MUCH faster, requires no copy
arr = numpy.frombuffer(wf.GetData(),count=len(wf))
# Save to disk
afile = ROOT.TFile.OpenFile("new_file.root", "recreate")
wf.SetNameTitle("mywf", "A waveform")
wf.Write()