{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896517,-0.443009,0.000000,0.000000,0.283417,-0.573550,0.768580,0.000000,-0.339549,0.687146,0.642290,0.000000,-2168689.659003,4388776.534937,4074819.461119,1],    "boundingVolume": {    "region": [2.029664,0.697408,2.029833,0.697557,0.000000,61.014776]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_508624.b3dm"}}}