{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949091,-0.315002,0.000000,0.000000,0.116052,-0.349661,0.929661,0.000000,-0.292576,0.881524,0.370560,0.000000,-1866949.657323,5625065.912448,2348741.161023,1],    "boundingVolume": {    "region": [1.891201,0.379554,1.891309,0.379670,0.000000,52.365640]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/18_74792.b3dm"}}}