File: itkMetaDataDictionaryTest.py

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# ==========================================================================
#
#   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
#
#          https://www.apache.org/licenses/LICENSE-2.0.txt
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#
# ==========================================================================*/

import itk

md = itk.MetaDataDictionary()
# one way of setting and retrieving double value in the dictionary
dv = itk.MetaDataObject.D.New()
dv.SetMetaDataObjectValue(10.0)
md.Set("double", dv)
print(md.Get("double"))
# other way of setting and retrieving double value (leverages Python's
# weak type system)
md["double"] = 10.0
print(md["double"])

# Required for "NRRD_measurement frame"
md1 = itk.MetaDataObject[itk.vector[itk.vector[itk.D]]].New()
print(md1)

# Required for "qto_xyz" metadata
md2 = itk.MetaDataObject[itk.Matrix[itk.F, 4, 4]].New()
print(md2)