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report data range. 

gracefully deal with constant field (below 1e-8 noise).
This commit is contained in:
Philip Eisenlohr 2015-06-19 11:36:21 +00:00
parent 3e0e187b14
commit 9b1f16e99e
1 changed files with 11 additions and 3 deletions
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10
processing/post/imageData.py
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@ -111,7 +111,15 @@ for name in filenames:
if options.log: table.data = np.log10(table.data);options.range = np.log10(options.range) if options.log: table.data = np.log10(table.data);options.range = np.log10(options.range)
if options.flipLR: table.data = np.fliplr(table.data) if options.flipLR: table.data = np.fliplr(table.data)
if options.flipUD: table.data = np.flipud(table.data) if options.flipUD: table.data = np.flipud(table.data)
if np.all(np.array(options.range) == 0.0): options.range = [table.data.min(),table.data.max()] if np.all(np.array(options.range) == 0.0):
options.range = [table.data.min(),table.data.max()]
file['croak'].write('data range: %g -- %g\n'%(options.range[0],options.range[1]))
delta = max(options.range) - min(options.range)
avg = 0.5*(max(options.range) + min(options.range))
print delta,avg,delta/avg
if delta * 1e8 <= avg: # delta around numerical noise
options.range = [min(options.range) - 0.5*avg, max(options.range) + 0.5*avg] # extend range to have actual data centered within
table.data = (table.data - min(options.range)) / \ table.data = (table.data - min(options.range)) / \
(max(options.range) - min(options.range)) (max(options.range) - min(options.range))