{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948728,-0.316093,0.000000,0.000000,0.176466,-0.529650,0.829657,0.000000,-0.261698,0.785465,0.560856,0.000000,-1670903.110420,5015086.537143,3557014.328538,1],    "boundingVolume": {    "region": [1.892357,0.595307,1.892453,0.595531,0.000000,8.794527]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/14_1180850.b3dm"}}}