{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857749,-0.514069,0.000000,0.000000,0.263165,-0.439104,0.859030,0.000000,-0.440820,0.735530,0.514465,0.000000,-2814102.753371,4695471.138823,3262251.435357,1],    "boundingVolume": {    "region": [2.110636,0.540321,2.110800,0.540446,0.000000,14.881633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/7_390412.b3dm"}}}