{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858243,-0.513243,0.000000,0.000000,0.263023,-0.439827,0.858703,0.000000,-0.439943,0.735671,0.515014,0.000000,-2808508.197401,4696380.225590,3265738.662160,1],    "boundingVolume": {    "region": [2.109673,0.540961,2.109838,0.541086,0.000000,48.306900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_465952.b3dm"}}}