{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950345,-0.311197,0.000000,0.000000,0.173726,-0.530532,0.829672,0.000000,-0.257649,0.786818,0.560833,0.000000,-1645053.858032,5023725.627612,3556873.135897,1],    "boundingVolume": {    "region": [1.887199,0.595334,1.887299,0.595451,0.000000,8.812426]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1454609.b3dm"}}}