{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950661,-0.310231,0.000000,0.000000,0.173580,-0.531911,0.828819,0.000000,-0.256583,0.786263,0.562099,0.000000,-1638254.196140,5020206.224185,3564917.172363,1],    "boundingVolume": {    "region": [1.886150,0.596837,1.886315,0.597006,0.000000,7.794818]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1326866.b3dm"}}}