{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858753,-0.512390,0.000000,0.000000,0.262306,-0.439618,0.859029,0.000000,-0.439380,0.736390,0.514466,0.000000,-2804912.165503,4700962.329576,3262258.201270,1],    "boundingVolume": {    "region": [2.108680,0.540322,2.108844,0.540447,0.000000,15.319766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/7_252197.b3dm"}}}