{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949749,-0.313013,0.000000,0.000000,0.115364,-0.350038,0.929604,0.000000,-0.290711,0.882081,0.370702,0.000000,-1855047.658850,5628623.307452,2349642.925196,1],    "boundingVolume": {    "region": [1.889090,0.379674,1.889229,0.379856,0.000000,42.444313]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73574.b3dm"}}}