ModifiedTime.py

# ==========================================================================
#
#   Copyright NumFOCUS
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
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#          https://www.apache.org/licenses/LICENSE-2.0.txt
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# ==========================================================================

#
#  Test basic properties of modified times
#

import itk

# image and transform are in the same module, but filters are in a different module.


imType = itk.Image[itk.F, 2]
imTypeB = itk.Image[itk.UC, 2]
im = imType.New()

transType = itk.Transform[itk.D, 3]
trans = transType.New()

filtType = itk.AndImageFilter[imTypeB, imTypeB, imTypeB]
filt = filtType.New()

metricType = itk.ImageToImageMetricv4[imType, imType]
met = metricType.New()
# We modify them in the order image, transform, filter
for _ in range(3000):
    im.Modified()
trans.Modified()
met.Modified()
filt.Modified()

# and their Modified times should respect that order.
assert im.GetMTime() < trans.GetMTime()
assert trans.GetMTime() < met.GetMTime()
assert met.GetMTime() < filt.GetMTime()