| d_id | Integer identifier of the neighboring block, based on the ordering of the array given to this class's constructor |
| d_translated_domain | BoxArray describing coarse-level domain of the neighboring block in terms of the index space of the given block |
| d_rotation | The rotation needed to rotate the index space of the neighboring block so that it is aligned with the index space of the given block |
| d_shift | The shift needed to move the domain of the neighboring block from its post-rotation location to its actual location, from the point of view of the index space of the given block. |
| d_is_singularity | Whether or not the two blocks touch at a singularity |