{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950527,-0.310641,0.000000,0.000000,0.173777,-0.531738,0.828889,0.000000,-0.256943,0.786219,0.561996,0.000000,-1640554.831175,5019923.707319,3564261.370647,1],    "boundingVolume": {    "region": [1.886614,0.596748,1.886712,0.596846,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395600.b3dm"}}}