{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949623,-0.313393,0.000000,0.000000,0.175172,-0.530793,0.829201,0.000000,-0.259319,0.785770,0.561533,0.000000,-1655718.759950,5017046.878860,3561318.663090,1],    "boundingVolume": {    "region": [1.889511,0.596196,1.889610,0.596278,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443721.b3dm"}}}