{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949056,-0.315106,0.000000,0.000000,0.176224,-0.530762,0.828998,0.000000,-0.260671,0.785107,0.561834,0.000000,-1664357.408920,5012817.994499,3563233.481612,1],    "boundingVolume": {    "region": [1.891314,0.596591,1.891415,0.596612,0.000000,8.426633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1338560.b3dm"}}}