{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949084,-0.315025,0.000000,0.000000,0.176027,-0.530322,0.829321,0.000000,-0.260706,0.785438,0.561355,0.000000,-1664578.329027,5014923.205498,3560187.235187,1],    "boundingVolume": {    "region": [1.891210,0.595969,1.891348,0.596075,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373634.b3dm"}}}