Update app.py

app.py

@@ -108,18 +108,6 @@ def apply_font_to_all_text(fig):
 
     return fig
 
-def save_radar_chart_image(fig):
-  """使用 kaleido 輸出 png 的記憶體檔案"""
-  img_bytes = pio.to_image(fig, format="png", engine="kaleido")
-  return img_bytes
-
-def create_composite_image(fig, student):
-    """使用 PIL 合成圖片，確保學生的成績在最上層"""
-    img_bytes = pio.to_image(fig, format="png", engine="kaleido")
-    img = Image.open(BytesIO(img_bytes)).convert("RGBA")
-    background = Image.new('RGBA', img.size, (255, 255, 255, 255))
-    composite = Image.alpha_composite(background, img)
-    return composite
 
 def main():
     st.title('學生成績雷達圖產生器')
@@ -144,28 +132,7 @@ def main():
                     st.plotly_chart(fig, use_container_width=True)
                 except Exception as e:
                     st.error(f"生成雷達圖時發生錯誤：{e}")
-
-            st.write("### 批次下載雷達圖")
-            comparison_rows = st.multiselect("選擇比較對象（可多選，如班平均或區標）", df['姓名'].tolist())
-
-            if comparison_rows:
-                st.write("### 選擇要下載的圖片")
-
-                image_bytes = {}
-                for student in df['姓名']:
-                   if student in comparison_rows:
-                      continue
-
-                   fig = create_radar_chart(df, [student] + comparison_rows, selected_columns)
-                   fig = apply_font_to_all_text(fig)
-                   image_bytes[student] = create_composite_image(fig, student)
-                
-                cols = st.columns(3)  # 排成三列
-                for i, student in enumerate(image_bytes.keys()):
-                    with cols[i % 3]:
-                        st.image(image_bytes[student], use_container_width=True)
-                        st.text(f"下載 {student}")
-                        
+            
 if __name__ == "__main__":
     import numpy as np
     main()