feat: change API router structure

analysis.py

@@ -1,5 +1,4 @@
 from datetime import datetime
-import numpy as np
 import io
 import base64
 from fastapi import APIRouter
@@ -81,19 +80,17 @@ class Params(BaseModel):
     font_size: int | None = Field(default=10, alias="fontSize")
     arrow_size: int | None = Field(default=20, alias="arrowSize")
     edge_width: float | None = Field(default=1, alias="edgeWidth")
+    distance: float | None = 0.2
 
 
 def sociogram_image(params: Params):
-    print(params)
     plt.figure(figsize=(16, 10), facecolor="none")
     ax = plt.gca()
     ax.set_facecolor("none")  # Set the axis face color to none (transparent)
     ax.axis("off")  # Turn off axis ticks and frames
 
     G = sociogram_data()
-    pos = nx.spring_layout(
-        G, scale=2, k=1 / np.sqrt(G.number_of_edges()), iterations=50, seed=42
-    )
+    pos = nx.spring_layout(G, scale=2, k=params.distance, iterations=50, seed=None)
     nx.draw_networkx_nodes(
         G,
         pos,