{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949113,-0.314937,0.000000,0.000000,0.116072,-0.349802,0.929605,0.000000,-0.292498,0.881491,0.370701,0.000000,-1866451.736678,5624855.899528,2349633.662356,1],    "boundingVolume": {    "region": [1.891132,0.379706,1.891240,0.379821,0.000000,57.910820]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76084.b3dm"}}}