{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949363,-0.314181,0.000000,0.000000,0.175236,-0.529511,0.830006,0.000000,-0.260225,0.786325,0.560336,0.000000,-1661498.609846,5020566.991706,3553709.182762,1],    "boundingVolume": {    "region": [1.890309,0.594658,1.890471,0.594924,0.000000,8.789339]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1379542.b3dm"}}}