![beatunes color undefined but other tagging software see it beatunes color undefined but other tagging software see it](https://community.audirvana.com/uploads/default/original/2X/f/f00b1698b6d9bf1b84ce5e32ef1b1f4af92b9d54.jpeg)
When we work through all the constraints with each of the seven point-group symmetries, we find that a unique base-centered lattice exists only for the orthorhombic point-group symmetry, a unique body-centered lattice exists only for cubic, tetragonal and orthorhombic point-group symmetries, and so on. So again your intended base-centered lattice is not unique in this case it is just another simple tetragonal lattice. But now there is a different trap: you can draw a smaller unit cell, with smaller square faces, that is a simple tetragonal lattice. You really do have a specific pair of "bases". Tetragonal point-group symmetry does not include a roration around a body diagonal or any other operation that would shift the square faces onto another face, so you avoid the trap of turning "base-centered" into "face-centered" like what happened with cubic symmetry. Suppose you try to construct a base-centered tetragonal lattice by allowing translations of the corners onto the centers of the opposing square faces of the prism.
![beatunes color undefined but other tagging software see it beatunes color undefined but other tagging software see it](https://mac-cdn.softpedia.com/screenshots/beatunes_13.jpg)
So to have both the base-centered translational symmetry and the cubic point-group symmetry, you have to allow translation of the unit cell corners to the centers of all the faces, not just one opposing pair, and your intended base-centered cubic lattice is really face-centered cubic. replacement and other features within the standard Photo Mechanic program, but takes it a step further by adding a full-fledged digital asset manager (DAM) for organizing and sorting through your. This new program features all of the ingestion, code. But "cubic" means you get the same unit cell back when you rotate each face to match an adjacent one (rotating around a body diagonal of the cube). Camera Bits, the company behind the popular photo ingestion program Photo Mechanic, has released its newest product, Photo Mechanic Plus. Base-centered means you get the same lattice back if you translate the corners of each unit cell to the centers of a pair of specified opposing faces (the "bases"). Essentially, certain combinations of the possible point-group symmetries (cubic, tetragonal, hexagonal, trigonal, orthorhombic, monoclinic, triclinic) and possible translational symmetries (simple, base-centered, face-centered, body-centered) end up having identical overall lattice symmetries and thus you don't get $7×4$ unique lattices.įor example, suppose you propose a base-centered cubic lattice.