{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949171,-0.314762,0.000000,0.000000,0.175957,-0.530603,0.829156,0.000000,-0.260437,0.785353,0.561599,0.000000,-1662859.137184,5014384.363476,3561738.815837,1],    "boundingVolume": {    "region": [1.890933,0.596264,1.891071,0.596370,0.000000,17.365746]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1448172.b3dm"}}}