{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950148,-0.311800,0.000000,0.000000,0.174173,-0.530757,0.829434,0.000000,-0.258074,0.786428,0.561186,0.000000,-1647766.054882,5021238.578153,3559113.737535,1],    "boundingVolume": {    "region": [1.887833,0.595760,1.887933,0.595876,0.000000,8.819331]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1429229.b3dm"}}}