{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898078,-0.439835,0.000000,0.000000,0.284311,-0.580521,0.762996,0.000000,-0.334648,0.683302,0.648929,0.000000,-2137448.218589,4364349.906133,4117057.328398,1],    "boundingVolume": {    "region": [2.026146,0.706065,2.026278,0.706287,0.000000,9.340035]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820561.b3dm"}}}