{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897865,-0.440271,0.000000,0.000000,0.282760,-0.576646,0.766502,0.000000,-0.336531,0.686304,0.644774,0.000000,-2149435.393182,4383444.318456,4090623.623658,1],    "boundingVolume": {    "region": [2.026633,0.700693,2.026760,0.700762,0.000000,7.160731]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_852919.b3dm"}}}