{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950388,-0.311068,0.000000,0.000000,0.173641,-0.530516,0.829700,0.000000,-0.257551,0.786880,0.560792,0.000000,-1644427.306070,5024119.843920,3556607.826352,1],    "boundingVolume": {    "region": [1.887063,0.595283,1.887163,0.595400,0.000000,8.797394]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_1450568.b3dm"}}}