{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857732,-0.514097,0.000000,0.000000,0.263004,-0.438803,0.859233,0.000000,-0.440950,0.735690,0.514123,0.000000,-2814928.461685,4696491.712578,3260083.830332,1],    "boundingVolume": {    "region": [2.110669,0.539923,2.110833,0.540048,0.000000,8.458100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/4_338098.b3dm"}}}