{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948958,-0.315402,0.000000,0.000000,0.176159,-0.530013,0.829490,0.000000,-0.261073,0.785497,0.561103,0.000000,-1666914.771991,5015292.645245,3558584.080784,1],    "boundingVolume": {    "region": [1.891608,0.595664,1.891745,0.595771,0.000000,8.816941]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/6_1070128.b3dm"}}}