{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949731,-0.313067,0.000000,0.000000,0.115407,-0.350101,0.929575,0.000000,-0.290753,0.882036,0.370776,0.000000,-1855313.975414,5628339.224397,2350109.968565,1],    "boundingVolume": {    "region": [1.889148,0.379754,1.889286,0.379935,0.000000,8.097589]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_73681.b3dm"}}}