{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950755,-0.309943,0.000000,0.000000,0.173122,-0.531055,0.829464,0.000000,-0.256546,0.786958,0.561143,0.000000,-1638010.970770,5024625.685379,3558838.352488,1],    "boundingVolume": {    "region": [1.885857,0.595656,1.886002,0.595875,0.000000,8.813958]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/12_1340257.b3dm"}}}