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Add integral filter to compute the time-dependent evolution of the integral of a field.

Mohsen Lahooti requested to merge feature/nonconformal-MR-p5 into master

Issue/feature addressed

Need to be able to generate a time-dependent integral of the composites during the simulation.

Proposed solution

Add a new filter to calculate the integral over one or more composite groups.


New filter named FilterIntegral is added to library/SolverUtils/Filters.


No test has been added yet, since the tester does not currently have a means to check the contents of a file generated during execution of the test.



  • Functions and classes, or changes to them, are documented.
  • User guide/documentation is updated.
  • Changelog is updated.
  • Suitable tests added for new functionality.
  • Contributed code is correctly formatted. (See the contributing guidelines).
  • License added to any new files.
  • No extraneous files have been added (e.g. compiler output or test data files).


On the 19.07 the code formatting (code style) was standardised using clang-format, over the whole Nektar++ code. This means changes in your branch will conflict with formatting changes on the master branch. To resolve these conflicts , see #295 (closed)

Edited by Chris Cantwell

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