{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950692,-0.310137,0.000000,0.000000,0.173153,-0.530782,0.829632,0.000000,-0.256759,0.787067,0.560893,0.000000,-1639369.024151,5025314.537369,3557250.733533,1],    "boundingVolume": {    "region": [1.886075,0.595407,1.886191,0.595521,0.000000,8.789628]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1451347.b3dm"}}}