{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949894,-0.312571,0.000000,0.000000,0.174674,-0.530829,0.829282,0.000000,-0.258664,0.786072,0.561412,0.000000,-1651536.829723,5018974.854783,3560548.983913,1],    "boundingVolume": {    "region": [1.888609,0.595988,1.888780,0.596193,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1349989.b3dm"}}}