{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950535,-0.310618,0.000000,0.000000,0.173758,-0.531723,0.828902,0.000000,-0.256929,0.786238,0.561976,0.000000,-1640463.668042,5020045.044371,3564133.297014,1],    "boundingVolume": {    "region": [1.886591,0.596723,1.886689,0.596822,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395306.b3dm"}}}