{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949072,-0.315060,0.000000,0.000000,0.175846,-0.529710,0.829750,0.000000,-0.260872,0.785839,0.560717,0.000000,-1665633.339872,5017469.778335,3556130.772383,1],    "boundingVolume": {    "region": [1.891248,0.595198,1.891385,0.595304,0.000000,8.820004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375241.b3dm"}}}