{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949364,-0.314178,0.000000,0.000000,0.175300,-0.529711,0.829865,0.000000,-0.260179,0.786191,0.560545,0.000000,-1661202.417684,5019716.090638,3555040.452780,1],    "boundingVolume": {    "region": [1.890306,0.594911,1.890468,0.595177,0.000000,8.770793]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1370830.b3dm"}}}