{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948832,-0.315782,0.000000,0.000000,0.176330,-0.529820,0.829577,0.000000,-0.261415,0.785475,0.560974,0.000000,-1669101.494300,5015150.527050,3557764.820713,1],    "boundingVolume": {    "region": [1.892030,0.595450,1.892125,0.595673,0.000000,8.656075]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1070918.b3dm"}}}