{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949624,-0.313390,0.000000,0.000000,0.175165,-0.530780,0.829210,0.000000,-0.259319,0.785780,0.561519,0.000000,-1655720.323353,5017109.655527,3561230.094164,1],    "boundingVolume": {    "region": [1.889508,0.596180,1.889607,0.596261,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443541.b3dm"}}}