{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897924,-0.440150,0.000000,0.000000,0.282525,-0.576362,0.766803,0.000000,-0.336572,0.686620,0.644416,0.000000,-2149693.322065,4385458.518576,4088343.930899,1],    "boundingVolume": {    "region": [2.026499,0.700225,2.026626,0.700294,0.000000,16.220429]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_883992.b3dm"}}}