{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949599,-0.313467,0.000000,0.000000,0.175023,-0.530205,0.829608,0.000000,-0.259509,0.786140,0.560927,0.000000,-1656928.227391,5019395.635859,3557470.385796,1],    "boundingVolume": {    "region": [1.889589,0.595465,1.889688,0.595547,0.000000,19.445033]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/2_1457514.b3dm"}}}