{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950288,-0.311372,0.000000,0.000000,0.174017,-0.531091,0.829253,0.000000,-0.257662,0.786370,0.561455,0.000000,-1645142.924201,5020878.303783,3560823.528433,1],    "boundingVolume": {    "region": [1.887357,0.596050,1.887508,0.596236,0.000000,8.617396]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_1431565.b3dm"}}}