{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950267,-0.311436,0.000000,0.000000,0.173856,-0.530477,0.829679,0.000000,-0.257849,0.786761,0.560822,0.000000,-1646333.323568,5023359.030249,3556799.412063,1],    "boundingVolume": {    "region": [1.887451,0.595320,1.887550,0.595437,0.000000,8.711136]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1454532.b3dm"}}}