{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950222,-0.311574,0.000000,0.000000,0.174152,-0.531120,0.829206,0.000000,-0.257815,0.786270,0.561525,0.000000,-1646117.579900,5020239.947480,3561270.100792,1],    "boundingVolume": {    "region": [1.887576,0.596124,1.887715,0.596332,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1341875.b3dm"}}}