{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948836,-0.315770,0.000000,0.000000,0.176401,-0.530056,0.829412,0.000000,-0.261352,0.785320,0.561220,0.000000,-1668700.170954,5014166.841494,3559328.692294,1],    "boundingVolume": {    "region": [1.891996,0.595806,1.892133,0.595912,0.000000,8.775112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/8_1147521.b3dm"}}}