{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949464,-0.313876,0.000000,0.000000,0.175322,-0.530342,0.829457,0.000000,-0.259799,0.785884,0.561152,0.000000,-1658784.137622,5017765.152217,3558895.748174,1],    "boundingVolume": {    "region": [1.890019,0.595736,1.890118,0.595817,0.000000,8.540952]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1363920.b3dm"}}}