{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898084,-0.439824,0.000000,0.000000,0.284304,-0.580525,0.762996,0.000000,-0.334640,0.683306,0.648929,0.000000,-2137394.597097,4364376.020536,4117057.482564,1],    "boundingVolume": {    "region": [2.026133,0.706065,2.026266,0.706287,0.000000,8.444342]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1820543.b3dm"}}}