{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949051,-0.315122,0.000000,0.000000,0.115796,-0.348742,0.930038,0.000000,-0.292808,0.881849,0.369603,0.000000,-1868422.077090,5627125.884546,2342668.946922,1],    "boundingVolume": {    "region": [1.891328,0.378547,1.891434,0.378617,0.000000,74.522100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/16_9846.b3dm"}}}