{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949298,-0.314377,0.000000,0.000000,0.175745,-0.530682,0.829150,0.000000,-0.260117,0.785453,0.561608,0.000000,-1660815.792209,5015020.892437,3561795.624744,1],    "boundingVolume": {    "region": [1.890548,0.596287,1.890646,0.596369,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1415905.b3dm"}}}