{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898785,-0.438390,0.000000,0.000000,0.283137,-0.580485,0.763460,0.000000,-0.333753,0.684258,0.648382,0.000000,-2131724.717721,4370448.076777,4113577.807926,1],    "boundingVolume": {    "region": [2.024521,0.705398,2.024686,0.705517,0.000000,16.855802]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1831833.b3dm"}}}