{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949101,-0.314972,0.000000,0.000000,0.116106,-0.349861,0.929579,0.000000,-0.292522,0.881455,0.370767,0.000000,-1866607.196405,5624626.605091,2350056.184000,1],    "boundingVolume": {    "region": [1.891169,0.379778,1.891277,0.379893,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76873.b3dm"}}}