{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896900,-0.442233,0.000000,0.000000,0.282294,-0.572525,0.769757,0.000000,-0.339478,0.688500,0.640876,0.000000,-2168218.954580,4397398.942886,4065824.706052,1],    "boundingVolume": {    "region": [2.028792,0.695583,2.028975,0.695695,0.000000,31.543337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_450933.b3dm"}}}