firedrakeproject/firedrake — pull request #397 by miklos1 (2014-11-19 12:24:41+00:00)
Title: Initial support for quadrilateral meshes

What is included?
* Utility quadrilateral mesh creation
* Boundary subdomains are supported
* Cell integrals
* Higher-order CG
* HDiv and HCurl elements (manual assembly required, just as for extruded meshes)
* Test cases for the above
* Visualisation output

What does not work yet?
* Facet integrals
* Non-affine mesh elements
* Extruded quadrilateral meshes
* Immersed quadrilateral meshes (not tested)