{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949104,-0.314962,0.000000,0.000000,0.116124,-0.349928,0.929551,0.000000,-0.292504,0.881431,0.370837,0.000000,-1866492.373113,5624478.511284,2350498.801465,1],    "boundingVolume": {    "region": [1.891159,0.379853,1.891267,0.379968,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_529.b3dm"}}}