{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857962,-0.513713,0.000000,0.000000,0.262791,-0.438892,0.859253,0.000000,-0.440630,0.735905,0.514090,0.000000,-2812890.334288,4697859.858891,3259873.187854,1],    "boundingVolume": {    "region": [2.110221,0.539884,2.110386,0.540009,0.000000,21.930233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/3_331503.b3dm"}}}