{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950324,-0.311263,0.000000,0.000000,0.173714,-0.530370,0.829778,0.000000,-0.257737,0.786902,0.560675,0.000000,-1645614.379984,5024258.789368,3555867.407952,1],    "boundingVolume": {    "region": [1.887268,0.595143,1.887368,0.595259,0.000000,8.188635]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1454037.b3dm"}}}