{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949100,-0.314975,0.000000,0.000000,0.116126,-0.349916,0.929555,0.000000,-0.292518,0.881431,0.370826,0.000000,-1866578.385526,5624479.198448,2350429.321772,1],    "boundingVolume": {    "region": [1.891172,0.379841,1.891281,0.379956,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_348.b3dm"}}}