{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857698,-0.514154,0.000000,0.000000,0.263229,-0.439111,0.859006,0.000000,-0.440881,0.735465,0.514504,0.000000,-2814493.254703,4695060.768483,3262503.481326,1],    "boundingVolume": {    "region": [2.110735,0.540367,2.110900,0.540492,0.000000,25.256966]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/7_393595.b3dm"}}}