{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949102,-0.314969,0.000000,0.000000,0.116115,-0.349891,0.929566,0.000000,-0.292516,0.881443,0.370799,0.000000,-1866568.341683,5624556.090972,2350254.468024,1],    "boundingVolume": {    "region": [1.891167,0.379811,1.891275,0.379926,0.000000,70.386220]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_77363.b3dm"}}}