{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949086,-0.315016,0.000000,0.000000,0.116112,-0.349825,0.929591,0.000000,-0.292567,0.881453,0.370735,0.000000,-1866894.611988,5624616.505807,2349853.406837,1],    "boundingVolume": {    "region": [1.891216,0.379743,1.891324,0.379858,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76510.b3dm"}}}