{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944322,-0.329021,0.000000,0.000000,0.183920,-0.527867,0.829174,0.000000,-0.272242,0.781359,0.561572,0.000000,-1738229.403848,4988881.143970,3561567.930246,1],    "boundingVolume": {    "region": [1.906006,0.596247,1.906121,0.596322,0.000000,8.810837]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851816.b3dm"}}}