{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948767,-0.315976,0.000000,0.000000,0.176015,-0.528511,0.830478,0.000000,-0.261863,0.786282,0.559632,0.000000,-1671949.311597,5020282.641704,3549236.720655,1],    "boundingVolume": {    "region": [1.892234,0.593830,1.892330,0.594053,0.000000,8.693412]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1093676.b3dm"}}}