{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895909,-0.444239,0.000000,0.000000,0.283882,-0.572514,0.769181,0.000000,-0.340760,0.687220,0.641569,0.000000,-2176414.537357,4389236.635980,4070233.556319,1],    "boundingVolume": {    "region": [2.031066,0.696488,2.031175,0.696596,0.000000,57.944838]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_618820.b3dm"}}}