{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852955,-0.521984,0.000000,0.000000,0.269293,-0.440042,0.856647,0.000000,-0.446353,0.729370,0.518448,0.000000,-2849467.050560,4656212.919211,3287553.774849,1],    "boundingVolume": {    "region": [2.119925,0.544993,2.120018,0.545077,0.000000,46.592433]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_4304.b3dm"}}}