{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944321,-0.329026,0.000000,0.000000,0.183915,-0.527844,0.829190,0.000000,-0.272250,0.781372,0.561549,0.000000,-1738285.892979,4988967.146923,3561420.878146,1],    "boundingVolume": {    "region": [1.906011,0.596219,1.906126,0.596294,0.000000,8.768828]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851618.b3dm"}}}