{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949311,-0.314340,0.000000,0.000000,0.175456,-0.529879,0.829725,0.000000,-0.260268,0.786013,0.560754,0.000000,-1661773.868480,5018582.081023,3556365.242284,1],    "boundingVolume": {    "region": [1.890489,0.595242,1.890626,0.595349,0.000000,7.592349]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/2_1368470.b3dm"}}}