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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Generate "peak powder" from CrystFEL stream
#
# Copyright © 2017 Deutsches Elektronen-Synchrotron DESY,
# a research centre of the Helmholtz Association.
#
# Author:
# 2017 Thomas White <taw@physics.org>
#
import numpy as np
import h5py
import sys
import re
f = open(sys.argv[1], 'r')
powder = np.zeros((512,1024), dtype=float)
peaks = []
prog1 = re.compile("^\s*([\d\-\.]+)\s+([\d\-\.]+)\s+[\d\-\.]+\s+([\d\-\.]+)\s+\S+$")
while True:
fline = f.readline()
if not fline:
break
if fline == '----- End chunk -----\n':
if len(peaks) > 10:
for p in peaks:
powder[p[1],p[0]] += p[2]
peaks = []
match = prog1.match(fline)
if match:
fs = int(float(match.group(1)))
ss = int(float(match.group(2)))
intensity = float(match.group(3))
peaks.append((fs,ss,intensity))
f.close()
fh = h5py.File("summed-peaks.h5", "w")
fh.create_dataset("/data", (512,1024), data=powder)
fh.close()
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