{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898462,-0.439052,0.000000,0.000000,0.283835,-0.580831,0.762938,0.000000,-0.334026,0.683541,0.648998,0.000000,-2133475.321793,4365879.055836,4117493.768753,1],    "boundingVolume": {    "region": [2.025289,0.706229,2.025390,0.706303,0.000000,8.039624]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1817721.b3dm"}}}