{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950502,-0.310717,0.000000,0.000000,0.173734,-0.531461,0.829075,0.000000,-0.257065,0.786377,0.561719,0.000000,-1641329.982121,5020926.785436,3562503.032860,1],    "boundingVolume": {    "region": [1.886695,0.596413,1.886793,0.596512,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1389344.b3dm"}}}