{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896514,-0.443015,0.000000,0.000000,0.283503,-0.573715,0.768425,0.000000,-0.339485,0.687004,0.642476,0.000000,-2168279.235148,4387872.304914,4076003.520889,1],    "boundingVolume": {    "region": [2.029671,0.697650,2.029839,0.697800,0.000000,53.214907]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_508810.b3dm"}}}