{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950255,-0.311472,0.000000,0.000000,0.173985,-0.530802,0.829444,0.000000,-0.257805,0.786526,0.561171,0.000000,-1646054.430544,5021867.268097,3559019.374379,1],    "boundingVolume": {    "region": [1.887488,0.595742,1.887588,0.595859,0.000000,8.812534]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1429075.b3dm"}}}