{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950216,-0.311593,0.000000,0.000000,0.174162,-0.531115,0.829207,0.000000,-0.257831,0.786266,0.561523,0.000000,-1646217.707718,5020215.924052,3561257.765836,1],    "boundingVolume": {    "region": [1.887596,0.596121,1.887734,0.596330,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1341883.b3dm"}}}