{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949064,-0.315084,0.000000,0.000000,0.176054,-0.530294,0.829333,0.000000,-0.260759,0.785434,0.561336,0.000000,-1664916.132628,5014895.456739,3560069.158811,1],    "boundingVolume": {    "region": [1.891272,0.595946,1.891410,0.596053,0.000000,28.770337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373828.b3dm"}}}