| 38 | |
| 39 | @dataclass |
| 40 | class XYZDatastruct(Datastruct): |
| 41 | transforms: XYZTransform |
| 42 | _joints2jfeats: Joints2Jfeats |
| 43 | |
| 44 | features: Optional[Tensor] = None |
| 45 | joints_: Optional[Tensor] = None |
| 46 | jfeats_: Optional[Tensor] = None |
| 47 | |
| 48 | def __post_init__(self): |
| 49 | self.datakeys = ["features", "joints_", "jfeats_"] |
| 50 | # starting point |
| 51 | if self.features is not None and self.jfeats_ is None: |
| 52 | self.jfeats_ = self.features |
| 53 | |
| 54 | @property |
| 55 | def joints(self): |
| 56 | # Cached value |
| 57 | if self.joints_ is not None: |
| 58 | return self.joints_ |
| 59 | |
| 60 | # self.jfeats_ should be defined |
| 61 | assert self.jfeats_ is not None |
| 62 | |
| 63 | self._joints2jfeats.to(self.jfeats.device) |
| 64 | self.joints_ = self._joints2jfeats.inverse(self.jfeats) |
| 65 | return self.joints_ |
| 66 | |
| 67 | @property |
| 68 | def jfeats(self): |
| 69 | # Cached value |
| 70 | if self.jfeats_ is not None: |
| 71 | return self.jfeats_ |
| 72 | |
| 73 | # self.joints_ should be defined |
| 74 | assert self.joints_ is not None |
| 75 | |
| 76 | self._joints2jfeats.to(self.joints.device) |
| 77 | self.jfeats_ = self._joints2jfeats(self.joints) |
| 78 | return self.jfeats_ |
| 79 | |
| 80 | def __len__(self): |
| 81 | return len(self.jfeats) |