{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950024,-0.312176,0.000000,0.000000,0.174240,-0.530253,0.829742,0.000000,-0.258482,0.786620,0.560728,0.000000,-1650369.338461,5022458.836740,3556204.188529,1],    "boundingVolume": {    "region": [1.888197,0.595199,1.888361,0.595331,0.000000,8.820528]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1456728.b3dm"}}}