{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949333,-0.314272,0.000000,0.000000,0.175692,-0.530721,0.829137,0.000000,-0.260025,0.785469,0.561628,0.000000,-1660229.379792,5015123.515427,3561923.652260,1],    "boundingVolume": {    "region": [1.890436,0.596311,1.890535,0.596393,0.000000,8.803256]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416543.b3dm"}}}