{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944297,-0.329093,0.000000,0.000000,0.183953,-0.527833,0.829189,0.000000,-0.272306,0.781352,0.561551,0.000000,-1738638.689156,4988835.953785,3561432.365419,1],    "boundingVolume": {    "region": [1.906082,0.596221,1.906197,0.596296,0.000000,8.768828]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851633.b3dm"}}}