{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950782,-0.309861,0.000000,0.000000,0.172999,-0.530834,0.829631,0.000000,-0.256530,0.787140,0.560894,0.000000,-1637908.744962,5025784.366537,3557259.590980,1],    "boundingVolume": {    "region": [1.885785,0.595408,1.885901,0.595523,0.000000,8.769996]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_1448766.b3dm"}}}