{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950655,-0.310251,0.000000,0.000000,0.173514,-0.531674,0.828985,0.000000,-0.256651,0.786417,0.561853,0.000000,-1638686.868290,5021182.516952,3563353.531197,1],    "boundingVolume": {    "region": [1.886204,0.596575,1.886302,0.596674,0.000000,12.082541]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1393159.b3dm"}}}