{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943392,-0.331681,0.000000,0.000000,0.185806,-0.528483,0.828361,0.000000,-0.274170,0.779816,0.562777,0.000000,-1750551.505290,4979055.198500,3569223.097098,1],    "boundingVolume": {    "region": [1.908818,0.597701,1.908943,0.597781,0.000000,8.660467]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_1254994.b3dm"}}}