{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852970,-0.521960,0.000000,0.000000,0.269305,-0.440089,0.856619,0.000000,-0.446318,0.729359,0.518494,0.000000,-2849243.115234,4656142.724420,3287845.301249,1],    "boundingVolume": {    "region": [2.119897,0.545046,2.119989,0.545130,0.000000,211.379700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_21382.b3dm"}}}