Angle Indexing

[JessicaRehak]

Solutions and terms in BART are indexed by an integer angle index and a pair of angle and group indices, respectively. The quadrature set implementation supports providing this index for a given quadrature point and vice versa. Ideally, the quadrature point itself (specifically the shared pointer) could be used to index solutions and terms. This causes a large conflicts that may be unsolvable:

• Quadrature point pointers require a template parameter because QuadraturePointI<dim> requires one.
• This propagates to TermI which propagates to system::Solution

This then propagates to most of the code, making any part of BART that interacts with the system solution to require a template parameter. This causes a ton of issues, especially with classes that already have template parameters (like stampers).

A better way to do this needs to be determined (perhaps finding a way to remove the template parameter from QuadraturePointI<dim>) so that, ideally, angle indices can be removed.