{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944294,-0.329102,0.000000,0.000000,0.183960,-0.527838,0.829184,0.000000,-0.272311,0.781344,0.561558,0.000000,-1738673.713061,4988789.464155,3561480.067414,1],    "boundingVolume": {    "region": [1.906091,0.596231,1.906206,0.596305,0.000000,8.815695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_851699.b3dm"}}}