{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950376,-0.311103,0.000000,0.000000,0.173604,-0.530335,0.829823,0.000000,-0.257618,0.786989,0.560608,0.000000,-1644856.515632,5024810.047657,3555441.957262,1],    "boundingVolume": {    "region": [1.887100,0.595062,1.887199,0.595179,0.000000,8.819856]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1453386.b3dm"}}}