{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950520,-0.310664,0.000000,0.000000,0.173739,-0.531579,0.828998,0.000000,-0.256997,0.786318,0.561833,0.000000,-1640894.819923,5020552.909347,3563225.467798,1],    "boundingVolume": {    "region": [1.886639,0.596550,1.886736,0.596649,0.000000,14.295793]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1392398.b3dm"}}}