{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949675,-0.313237,0.000000,0.000000,0.174759,-0.529835,0.829900,0.000000,-0.259410,0.786482,0.560493,0.000000,-1656295.483054,5021571.862992,3554711.351282,1],    "boundingVolume": {    "region": [1.889315,0.594849,1.889477,0.595114,0.000000,8.782894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357997.b3dm"}}}