{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950133,-0.311844,0.000000,0.000000,0.174185,-0.530710,0.829461,0.000000,-0.258119,0.786441,0.561146,0.000000,-1648053.448430,5021326.563048,3558858.252505,1],    "boundingVolume": {    "region": [1.887880,0.595711,1.887979,0.595828,0.000000,8.773887]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1428857.b3dm"}}}