{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949241,-0.314551,0.000000,0.000000,0.175911,-0.530859,0.829002,0.000000,-0.260213,0.785263,0.561828,0.000000,-1661433.533258,5013817.752958,3563191.664529,1],    "boundingVolume": {    "region": [1.890729,0.596583,1.890830,0.596604,0.000000,9.626413]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1418743.b3dm"}}}