{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949089,-0.315008,0.000000,0.000000,0.175996,-0.530259,0.829368,0.000000,-0.260708,0.785488,0.561284,0.000000,-1664584.599492,5015241.031048,3559739.584872,1],    "boundingVolume": {    "region": [1.891192,0.595884,1.891330,0.595990,0.000000,13.459489]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1374391.b3dm"}}}