{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949479,-0.313831,0.000000,0.000000,0.175419,-0.530722,0.829194,0.000000,-0.259679,0.785644,0.561543,0.000000,-1658017.455632,5016241.080440,3561383.863987,1],    "boundingVolume": {    "region": [1.889972,0.596209,1.890071,0.596291,0.000000,8.782828]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1443938.b3dm"}}}