{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950369,-0.311125,0.000000,0.000000,0.173836,-0.531002,0.829348,0.000000,-0.257488,0.786528,0.561315,0.000000,-1644026.295377,5021881.297270,3559930.758266,1],    "boundingVolume": {    "region": [1.887123,0.595915,1.887222,0.596032,0.000000,8.449482]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1342783.b3dm"}}}