{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950645,-0.310281,0.000000,0.000000,0.173410,-0.531296,0.829249,0.000000,-0.256759,0.786661,0.561462,0.000000,-1639373.219793,5022734.732782,3560866.129011,1],    "boundingVolume": {    "region": [1.886237,0.596102,1.886334,0.596201,0.000000,8.809058]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/1_1427191.b3dm"}}}