{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898660,-0.438646,0.000000,0.000000,0.283268,-0.580335,0.763525,0.000000,-0.333977,0.684223,0.648305,0.000000,-2133151.408256,4370218.847855,4113085.053482,1],    "boundingVolume": {    "region": [2.024805,0.705296,2.024970,0.705415,0.000000,28.690844]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1844140.b3dm"}}}