{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950249,-0.311492,0.000000,0.000000,0.115347,-0.351882,0.928910,0.000000,-0.289080,0.881878,0.372456,0.000000,-1844650.360858,5627354.100600,2360767.195969,1],    "boundingVolume": {    "region": [1.887496,0.381602,1.887622,0.381705,0.000000,9.867863]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/17_66865.b3dm"}}}