{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898338,-0.439305,0.000000,0.000000,0.284089,-0.580935,0.762763,0.000000,-0.334142,0.683290,0.649203,0.000000,-2134216.829815,4364277.113643,4118798.753951,1],    "boundingVolume": {    "region": [2.025571,0.706498,2.025672,0.706573,0.000000,43.122198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1818832.b3dm"}}}