{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949113,-0.314936,0.000000,0.000000,0.175967,-0.530307,0.829343,0.000000,-0.260641,0.785484,0.561321,0.000000,-1664157.281934,5015215.663964,3559973.533576,1],    "boundingVolume": {    "region": [1.891117,0.595928,1.891254,0.596035,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1361084.b3dm"}}}