{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897201,-0.441622,0.000000,0.000000,0.285332,-0.579682,0.763253,0.000000,-0.336122,0.682867,0.648626,0.000000,-2146855.847643,4361562.452531,4115128.912655,1],    "boundingVolume": {    "region": [2.028150,0.705743,2.028254,0.705812,0.000000,9.896672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_1837133.b3dm"}}}