SphinxExamples/src/Core/Common/ObserveAnEvent/Code.py

#!/usr/bin/env python

# Copyright Insight Software Consortium
#
# 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
#
#        http://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

Dimension = 2
PixelType = itk.UC
ImageType = itk.Image[PixelType, Dimension]

source = itk.GaussianImageSource[ImageType].New()
size = itk.Size[Dimension]()
size.Fill(128)
source.SetSize(size)

sigma = itk.FixedArray[itk.D, Dimension]()
sigma.Fill(45.0)
source.SetSigma(sigma)


def myCommand():
    print('Progress: ' + str(source.GetProgress()))

source.AddObserver(itk.ProgressEvent(), myCommand)

source.Update()