{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950727,-0.310028,0.000000,0.000000,0.173442,-0.531875,0.828871,0.000000,-0.256431,0.786368,0.562022,0.000000,-1637283.898447,5020872.353848,3564428.079316,1],    "boundingVolume": {    "region": [1.885936,0.596744,1.886101,0.596913,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1387641.b3dm"}}}