{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950343,-0.311204,0.000000,0.000000,0.173735,-0.530543,0.829663,0.000000,-0.257652,0.786808,0.560847,0.000000,-1645073.803836,5023658.728755,3556957.826399,1],    "boundingVolume": {    "region": [1.887207,0.595350,1.887306,0.595467,0.000000,8.812426]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1454730.b3dm"}}}