{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949430,-0.313978,0.000000,0.000000,0.175520,-0.530752,0.829153,0.000000,-0.259787,0.785565,0.561604,0.000000,-1658712.019947,5015737.487241,3561767.115124,1],    "boundingVolume": {    "region": [1.890127,0.596282,1.890226,0.596363,0.000000,8.726520]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1338383.b3dm"}}}