{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950650,-0.310265,0.000000,0.000000,0.173396,-0.531285,0.829259,0.000000,-0.256749,0.786675,0.561447,0.000000,-1639308.043620,5022825.057758,3560769.377453,1],    "boundingVolume": {    "region": [1.886220,0.596083,1.886317,0.596182,0.000000,8.809058]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/1_1426926.b3dm"}}}