{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949774,-0.312938,0.000000,0.000000,0.115308,-0.349962,0.929640,0.000000,-0.290653,0.882138,0.370612,0.000000,-1854677.067940,5628986.144755,2349070.055697,1],    "boundingVolume": {    "region": [1.889012,0.379577,1.889150,0.379759,0.000000,28.459170]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_73202.b3dm"}}}