{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949122,-0.314907,0.000000,0.000000,0.175671,-0.529469,0.829941,0.000000,-0.260806,0.786063,0.560433,0.000000,-1665210.486358,5018897.768671,3554325.422275,1],    "boundingVolume": {    "region": [1.891108,0.594813,1.891203,0.595003,0.000000,8.819396]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/28_1372493.b3dm"}}}