Feature/transformed finite element mixin

This MR provides a small helper to for transformed finite Elements. It effectively extracts the useful structural contributions from !421 (closed) into a much compacter form. Additionally, this MR now contains a cubic Hermite element (1d-3d simplices) and a Morley-triangle implemented in this style. The contained tests for those elements depend on !480 (merged) and !481.

added 1 commit

• 34904ddc - first draft

Compare with previous version

added 1 commit

• bc89d0ae - a hermite basis and a test

Compare with previous version

added 1 commit

• 70570a53 - use Mixin, style guides, cleanup

Compare with previous version

added 1 commit

• 9d397a11 - Bugfixes for Node and Prebasis

Compare with previous version

added 8 commits

• 9d397a11...28d2cfed - 4 commits from branch master
• 23404936 - first draft
• 6065c27e - a hermite basis and a test
• 68853585 - use Mixin, style guides, cleanup
• c95b04bc - Bugfixes for Node and Prebasis

Compare with previous version

added 3 commits

• 194e9499 - some bugfixes
• 36e08fbb - make it compile
• e571463b - bugfixes and reduce partial test to 1st order

Compare with previous version

added 2 commits

• 8fe6458a - fix partial
• 205a3dee - Bugfix: make transformedbasis copyable

Compare with previous version

added 1 commit

• 3f891616 - [fix] Randomly added char

Compare with previous version

added 1 commit

• 56c1c080 - test partials up to order 2

Compare with previous version

added 2 commits

• 9099fce8 - add a morley basis and a test
• dbdd1593 - compiling but buggy version of morley element

Compare with previous version

added 1 commit

• 7b2d962b - fix morley, now passing tests

Compare with previous version

changed the description

changed the description

added 3 commits

• 4ca90e5e - Add FunctionalDescriptor class
• 1855a891 - Add FunctionalDescriptors to Hermite- and Morley-basis
• f15db7b5 - Add missing includes

Compare with previous version

added 5 commits

• af359f0e - [hermite] Add TransformedFiniteElementMixin class
• bf8931dc - [hermite] Add a cubic Hermite-basis
• c2f4ed04 - [hermite] Add a Morley-basis
• 24244c81 - [hermite] Add FunctionalDescriptor class
• 8bd50bef - [hermite] Add FunctionalDescriptors to Hermite- and Morley-basis

Compare with previous version

added 5 commits

• dd23ab42 - [hermite] Add TransformedFiniteElementMixin class
• e9ce5211 - [hermite] Add a cubic Hermite-basis
• c90b3370 - [hermite] Add a Morley-basis
• 12362071 - [hermite] Add FunctionalDescriptor class
• 648df5e3 - [hermite] Add FunctionalDescriptors to Hermite- and Morley-basis

Compare with previous version

The implementation here works and has also been tested downstream in dune-fufem using the following examples:

• 2d Poisson equation with cubic Hermite-basis and weak enforcement of Dirichlet BC (Nitsches method).
• 2d Poisson equation with cubic Hermite-basis and strong enforcement of Dirichlet BC utilizing the FunctionalDescriptor interface.
• 2d biharmonic equation with nonconforming Morley basis and strong enforcement of clamped BC utilizing the FunctionalDescriptor interface.

This is still a draft because:

• This requires some other MRs (see above) for extended testing of the basis required for Hermite-type bases.
• The history needs to be cleaned up.
• The code needs to be cleaned up.

added 1 commit

• 7813954e - [hermite[cleanup][doc] Improve TransformedFiniteElementMixin

Compare with previous version

added 1 commit

• 4bba5af0 - [hermite][cleanup][doc] Improve TransformedFiniteElementMixin

Compare with previous version