{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949071,-0.315061,0.000000,0.000000,0.176204,-0.530787,0.828986,0.000000,-0.260630,0.785108,0.561851,0.000000,-1664095.202969,5012826.958017,3563342.599112,1],    "boundingVolume": {    "region": [1.891266,0.596611,1.891368,0.596633,0.000000,34.722888]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_1420878.b3dm"}}}