{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898085,-0.439823,0.000000,0.000000,0.284321,-0.580562,0.762961,0.000000,-0.334623,0.683275,0.648970,0.000000,-2137287.893718,4364178.887439,4117320.069228,1],    "boundingVolume": {    "region": [2.026131,0.706119,2.026264,0.706342,0.000000,35.525152]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1821145.b3dm"}}}