{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950342,-0.311208,0.000000,0.000000,0.173736,-0.530540,0.829665,0.000000,-0.257656,0.786809,0.560844,0.000000,-1645096.491019,5023665.318497,3556938.159111,1],    "boundingVolume": {    "region": [1.887210,0.595346,1.887310,0.595463,0.000000,8.812426]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1454688.b3dm"}}}