{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949678,-0.313229,0.000000,0.000000,0.116070,-0.351911,0.928809,0.000000,-0.290660,0.881251,0.372710,0.000000,-1854730.631432,5623357.280927,2362381.567126,1],    "boundingVolume": {    "region": [1.889318,0.381878,1.889456,0.381978,0.000000,6.302559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/20_64415.b3dm"}}}