{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949118,-0.314920,0.000000,0.000000,0.175958,-0.530308,0.829344,0.000000,-0.260627,0.785489,0.561320,0.000000,-1664073.278176,5015249.931556,3559964.585932,1],    "boundingVolume": {    "region": [1.891100,0.595927,1.891237,0.596033,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1361080.b3dm"}}}