{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950712,-0.310075,0.000000,0.000000,0.173327,-0.531434,0.829178,0.000000,-0.256565,0.786649,0.561567,0.000000,-1638139.687549,5022658.771236,3561536.381556,1],    "boundingVolume": {    "region": [1.886019,0.596229,1.886117,0.596328,0.000000,8.819616]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/3_1427631.b3dm"}}}