{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898322,-0.439339,0.000000,0.000000,0.284309,-0.581331,0.762380,0.000000,-0.333998,0.682931,0.649654,0.000000,-2133302.809817,4361992.420513,4121672.117596,1],    "boundingVolume": {    "region": [2.025606,0.707093,2.025712,0.707166,0.000000,15.332688]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/3_1802531.b3dm"}}}