{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949679,-0.313226,0.000000,0.000000,0.116069,-0.351913,0.928809,0.000000,-0.290657,0.881252,0.372711,0.000000,-1854712.309890,5623360.757176,2362387.635799,1],    "boundingVolume": {    "region": [1.889373,0.381923,1.889395,0.381935,0.000000,6.302559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/20.b3dm"}}}