{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949017,-0.315224,0.000000,0.000000,0.175985,-0.529821,0.829650,0.000000,-0.260976,0.785698,0.560866,0.000000,-1666298.129866,5016573.446784,3557077.379715,1],    "boundingVolume": {    "region": [1.891421,0.595378,1.891558,0.595484,0.000000,6.294912]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/3_1072190.b3dm"}}}