{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949980,-0.312310,0.000000,0.000000,0.174691,-0.531372,0.828931,0.000000,-0.258337,0.785807,0.561933,0.000000,-1649453.536729,5017292.916560,3563861.296241,1],    "boundingVolume": {    "region": [1.888351,0.596616,1.888489,0.596825,0.000000,8.760017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1407429.b3dm"}}}