{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948230,-0.317584,0.000000,0.000000,0.116489,-0.347809,0.930301,0.000000,-0.295180,0.881338,0.368934,0.000000,-1883555.808516,5623856.186869,2338426.292913,1],    "boundingVolume": {    "region": [1.893924,0.377823,1.894029,0.377901,0.000000,12.753600]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/12_18271.b3dm"}}}