{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950150,-0.311792,0.000000,0.000000,0.173834,-0.529738,0.830156,0.000000,-0.258294,0.787121,0.560112,0.000000,-1649164.202963,5025643.184417,3552288.775351,1],    "boundingVolume": {    "region": [1.887793,0.594456,1.887956,0.594587,0.000000,8.687905]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1458263.b3dm"}}}