{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949076,-0.315048,0.000000,0.000000,0.176036,-0.530304,0.829330,0.000000,-0.260729,0.785441,0.561341,0.000000,-1664722.628418,5014939.592781,3560097.286267,1],    "boundingVolume": {    "region": [1.891235,0.595952,1.891372,0.596058,0.000000,28.770337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373802.b3dm"}}}