{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950559,-0.310544,0.000000,0.000000,0.173548,-0.531220,0.829269,0.000000,-0.256983,0.786609,0.561432,0.000000,-1640802.397551,5022403.222865,3560676.731718,1],    "boundingVolume": {    "region": [1.886513,0.596066,1.886611,0.596165,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426757.b3dm"}}}