{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897650,-0.440708,0.000000,0.000000,0.285513,-0.581543,0.761767,0.000000,-0.334768,0.681868,0.650373,0.000000,-2138228.031276,4355220.391346,4126247.893204,1],    "boundingVolume": {    "region": [2.027108,0.707962,2.027260,0.708190,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796966.b3dm"}}}