{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950362,-0.311145,0.000000,0.000000,0.173900,-0.531161,0.829232,0.000000,-0.257468,0.786412,0.561486,0.000000,-1643903.011527,5021144.666437,3561019.252435,1],    "boundingVolume": {    "region": [1.887118,0.596088,1.887270,0.596273,0.000000,8.819076]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_1431953.b3dm"}}}