{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949223,-0.314603,0.000000,0.000000,0.175431,-0.529313,0.830091,0.000000,-0.260602,0.786291,0.560209,0.000000,-1663901.410822,5020345.412862,3552903.338244,1],    "boundingVolume": {    "region": [1.890787,0.594543,1.890882,0.594733,0.000000,10.490028]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/26_1380519.b3dm"}}}