{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950520,-0.310663,0.000000,0.000000,0.173794,-0.531747,0.828879,0.000000,-0.256959,0.786204,0.562010,0.000000,-1640656.233895,5019827.672818,3564349.355770,1],    "boundingVolume": {    "region": [1.886638,0.596764,1.886736,0.596863,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395768.b3dm"}}}