{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950697,-0.310122,0.000000,0.000000,0.173232,-0.531052,0.829442,0.000000,-0.256687,0.786890,0.561174,0.000000,-1638916.369351,5024188.163648,3559037.861218,1],    "boundingVolume": {    "region": [1.886060,0.595746,1.886176,0.595861,0.000000,8.747232]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1343501.b3dm"}}}