{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858248,-0.513235,0.000000,0.000000,0.263013,-0.439819,0.858710,0.000000,-0.439939,0.735681,0.515002,0.000000,-2808487.851919,4696445.792616,3265662.381220,1],    "boundingVolume": {    "region": [2.109664,0.540947,2.109828,0.541072,0.000000,48.306900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_464473.b3dm"}}}