{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897908,-0.440182,0.000000,0.000000,0.282584,-0.576430,0.766730,0.000000,-0.336564,0.686543,0.644503,0.000000,-2149643.789469,4384964.728604,4088895.863729,1],    "boundingVolume": {    "region": [2.026535,0.700338,2.026661,0.700407,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852543.b3dm"}}}