File size: 3,233 Bytes
dbf8921 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | # Copyright (c) Meta Platforms, Inc. and affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from typing import Any, Dict, Set
from .io_utils import load_json
class ObjectLibrary(object):
def __init__(self, object_library_json: Dict[str, Any], asset_folder: str):
self._object_library_json = object_library_json
(
self._object_id_to_name_dict,
self._object_name_to_id_dict,
) = self._get_object_id_name_mappings(object_library_json)
(
self._headset_id_to_name_dict,
self._headset_name_to_id_dict,
) = self._get_headset_id_name_mappings(object_library_json)
self._asset_folder = asset_folder
@property
def object_id_to_name_dict(self):
return self._object_id_to_name_dict
@property
def object_name_to_id_dict(self):
return self._object_name_to_id_dict
@property
def headset_id_to_name_dict(self):
return self._headset_id_to_name_dict
@property
def headset_name_to_id_dict(self):
return self._headset_name_to_id_dict
@property
def object_uids(self) -> Set[str]:
return set(self._object_name_to_id_dict.values())
@property
def headset_uids(self) -> Set[str]:
return set(self._headset_name_to_id_dict.values())
@property
def asset_folder_name(self) -> str:
return self._asset_folder
def _get_object_id_name_mappings(self, object_info_json):
object_id_to_name_dict = {
k: v["instance_name"]
for k, v in object_info_json.items()
if v["instance_type"] == "object" and v["motion_type"] == "dynamic"
}
object_name_to_id_dict = {v: k for k, v in object_id_to_name_dict.items()}
return object_id_to_name_dict, object_name_to_id_dict
def _get_headset_id_name_mappings(self, object_info_json):
headset_id_to_name_dict = {
k: v["instance_name"]
for k, v in object_info_json.items()
if v["instance_type"] == "headset"
}
headset_name_to_id_dict = {v: k for k, v in headset_id_to_name_dict.items()}
return headset_id_to_name_dict, headset_name_to_id_dict
@staticmethod
def get_cad_asset_path(object_library_folderpath: str, object_id: str) -> str:
return os.path.join(object_library_folderpath, f"{object_id}.glb")
def load_object_library(object_library_folderpath: str) -> ObjectLibrary:
instance_filepath = os.path.join(object_library_folderpath, "instance.json")
object_library_json = load_json(instance_filepath)
asset_folder = os.path.join(object_library_folderpath)
return ObjectLibrary(object_library_json, asset_folder)
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