{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858505,-0.512805,0.000000,0.000000,0.262611,-0.439647,0.858921,0.000000,-0.439680,0.736084,0.514647,0.000000,-2806831.880710,4699012.420933,3263408.360854,1],    "boundingVolume": {    "region": [2.109164,0.540533,2.109328,0.540658,0.000000,94.497633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_270994.b3dm"}}}