Add the option to rotate tiling back to coordinate axes
As it stands, for some kernels:
for reasons of numerical stability are slightly rotated against the coordinate axes;
we decided not to rotate the tilings "back", once generated, since a) this'd consume resources and b) this orientation should be as good as any other
However, this has undesirable consequences, such as:
- aliasing when plotting
- loss of symmetry which means extra work for creating publication ready plots and may confuse users (who generally expect symmetry).
Suggestion:
Add the option (to the relevant kernels) to rotate the tiling back to the coordinate axes.