{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949073,-0.315057,0.000000,0.000000,0.116176,-0.349967,0.929530,0.000000,-0.292586,0.881382,0.370890,0.000000,-1867015.158273,5624163.437522,2350835.231497,1],    "boundingVolume": {    "region": [1.891259,0.379910,1.891367,0.380025,0.000000,67.897340]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_1259.b3dm"}}}