{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950731,-0.310018,0.000000,0.000000,0.173437,-0.531878,0.828870,0.000000,-0.256423,0.786369,0.562024,0.000000,-1637231.725898,5020882.689282,3564437.422323,1],    "boundingVolume": {    "region": [1.885926,0.596746,1.886091,0.596915,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1387645.b3dm"}}}