{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897457,-0.441101,0.000000,0.000000,0.283305,-0.576408,0.766480,0.000000,-0.337156,0.685973,0.644800,0.000000,-2153427.166568,4381328.631024,4090789.647953,1],    "boundingVolume": {    "region": [2.027558,0.700727,2.027685,0.700796,0.000000,11.629821]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/9_859544.b3dm"}}}