{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943851,-0.330371,0.000000,0.000000,0.184592,-0.527368,0.829342,0.000000,-0.273414,0.781128,0.561323,0.000000,-1745712.409968,4987406.859163,3559983.106469,1],    "boundingVolume": {    "region": [1.907445,0.595926,1.907540,0.596041,0.000000,8.746410]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1271063.b3dm"}}}