{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898493,-0.438987,0.000000,0.000000,0.283904,-0.581079,0.762723,0.000000,-0.333882,0.683371,0.649251,0.000000,-2132558.848363,4364796.978541,4119104.574096,1],    "boundingVolume": {    "region": [2.025217,0.706562,2.025318,0.706636,0.000000,52.896269]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1819291.b3dm"}}}