{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950706,-0.310093,0.000000,0.000000,0.173433,-0.531723,0.828970,0.000000,-0.256516,0.786445,0.561875,0.000000,-1637823.534648,5021365.334178,3563491.898857,1],    "boundingVolume": {    "region": [1.886004,0.596566,1.886170,0.596735,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1393932.b3dm"}}}