{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950290,-0.311367,0.000000,0.000000,0.174015,-0.531093,0.829252,0.000000,-0.257658,0.786370,0.561457,0.000000,-1645114.582311,5020878.499744,3560836.260470,1],    "boundingVolume": {    "region": [1.887352,0.596053,1.887503,0.596238,0.000000,8.617396]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_1431580.b3dm"}}}