{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898338,-0.439304,0.000000,0.000000,0.284092,-0.580942,0.762757,0.000000,-0.334139,0.683284,0.649210,0.000000,-2134195.813664,4364241.073213,4118847.503157,1],    "boundingVolume": {    "region": [2.025570,0.706508,2.025671,0.706583,0.000000,43.122198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1818911.b3dm"}}}