{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950204,-0.311628,0.000000,0.000000,0.174212,-0.531200,0.829142,0.000000,-0.257839,0.786195,0.561619,0.000000,-1646274.487889,5019760.973734,3561868.651534,1],    "boundingVolume": {    "region": [1.887633,0.596237,1.887771,0.596446,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1397246.b3dm"}}}