{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950172,-0.311726,0.000000,0.000000,0.174097,-0.530665,0.829509,0.000000,-0.258036,0.786519,0.561076,0.000000,-1647525.187356,5021818.178217,3558412.149146,1],    "boundingVolume": {    "region": [1.887756,0.595626,1.887855,0.595743,0.000000,8.805452]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1428477.b3dm"}}}