{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950215,-0.311594,0.000000,0.000000,0.174162,-0.531112,0.829209,0.000000,-0.257832,0.786267,0.561521,0.000000,-1646228.972800,5020222.715269,3561243.083953,1],    "boundingVolume": {    "region": [1.887598,0.596118,1.887736,0.596327,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1432463.b3dm"}}}