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#!/usr/bin/env python
#
# Determine mean detector shift based on prediction refinement results
#
# Copyright (c) 2015 Deutsches Elektronen-Synchrotron DESY,
# a research centre of the Helmholtz Association.
#
# Author:
# 2015 Thomas White <taw@physics.org>
#
import sys
import os
import re
f = open(sys.argv[1], 'r')
if len(sys.argv) > 2:
geom = sys.argv[2]
have_geom = 1
else:
have_geom = 0
# Determine the mean shifts
total_x = 0
total_y = 0
total_z = 0
n_xy = 0
n_z = 0
prog1 = re.compile("^predict_refine/det_shift\sx\s=\s([0-9\.\-]+)\sy\s=\s([0-9\.\-]+)\smm$")
prog2 = re.compile("^predict_refine/clen_shift\s=\s([0-9\.\-]+)\smm$")
while True:
fline = f.readline()
if not fline:
break
match = prog1.match(fline)
if match:
xshift = float(match.group(1))
yshift = float(match.group(2))
total_x += xshift
total_y += yshift
n_xy += 1
match = prog2.match(fline)
if match:
zshift = float(match.group(1))
total_z += xshift
n_z += 1
if n_xy != n_z:
print 'Warning: number of xy shifts not equal to number of z shifts'
mean_x = total_x / n_xy
mean_y = total_y / n_xy
mean_z = total_z / n_z
print 'Mean shifts: dx = %.2f mm, dy = %.2f mm; dz = %.2f mm' % (mean_x,mean_y,mean_z)
f.close()
if not have_geom:
exit(0)
# Apply shifts to geometry
out = os.path.splitext(geom)[0]+'-predrefine.geom'
print 'Applying corrections to %s, output filename %s' % (geom,out)
g = open(geom, 'r')
h = open(out, 'w')
prog1 = re.compile("^\s*res\s+=\s+([0-9\.]+)\s")
prog2 = re.compile("^\s*(.*)\/res\s+=\s+([0-9\.]+)\s")
prog3 = re.compile("^\s*(.*)\/corner_x\s+=\s+([0-9\.]+)\s")
prog4 = re.compile("^\s*(.*)\/corner_y\s+=\s+([0-9\.]+)\s")
default_res = 0
while True:
fline = g.readline()
if not fline:
break
match = prog1.match(fline)
if match:
default_res = float(match.group(1))
print 'default res %f' % (default_res)
h.write(fline)
continue
match = prog2.match(fline)
if match:
panel = match.group(1)
panel_res = float(match.group(2))
print 'panel res %s / %f' % (panel, panel_res)
h.write(fline)
continue
match = prog3.match(fline)
if match:
panel = match.group(1)
panel_cnx = float(match.group(2))
res = default_res # FIXME!
h.write('%s/corner_x = %f\n' % (panel,panel_cnx+(mean_x*res*1e-3)))
continue
match = prog4.match(fline)
if match:
panel = match.group(1)
panel_cny = float(match.group(2))
res = default_res # FIXME!
h.write('%s/corner_y = %f\n' % (panel,panel_cny+(mean_y*res*1e-3)))
continue
h.write(fline)
g.close()
h.close()
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