{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949610,-0.313433,0.000000,0.000000,0.174928,-0.529979,0.829772,0.000000,-0.259532,0.786306,0.560684,0.000000,-1657076.865087,5020451.415512,3555921.448877,1],    "boundingVolume": {    "region": [1.889522,0.595078,1.889684,0.595344,0.000000,8.063366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1369228.b3dm"}}}