{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950471,-0.310813,0.000000,0.000000,0.173837,-0.531595,0.828968,0.000000,-0.257111,0.786249,0.561878,0.000000,-1641625.033961,5020109.409855,3563512.039646,1],    "boundingVolume": {    "region": [1.886796,0.596605,1.886894,0.596704,0.000000,11.384751]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1394024.b3dm"}}}