Update app.py

app.py

@@ -118,7 +118,7 @@ def create_radar_chart(df, selected_rows, selected_columns, student_name=""):
     return fig
 
 def generate_radar_image(fig):
-    """生成图片(强制重置配置)"""
+    """生成圖片(強制重置配置與更新字型設定)"""
     try:
         # 每次生成前重置kaleido配置
         pio.kaleido.scope.default_font = CHINESE_FONT
@@ -126,6 +126,41 @@ def generate_radar_image(fig):
         pio.kaleido.scope.default_width = 1200
         pio.kaleido.scope.default_height = 900
         pio.kaleido.scope.default_scale = 2
+
+        # 強制更新圖表內所有文字字型設定
+        fig.update_layout(
+            font=dict(
+                family=CHINESE_FONT,
+                size=14
+            ),
+            title=dict(
+                font=dict(
+                    family=CHINESE_FONT,
+                    size=24
+                )
+            ),
+            legend=dict(
+                font=dict(
+                    family=CHINESE_FONT,
+                    size=14
+                )
+            ),
+            polar=dict(
+                radialaxis=dict(
+                    tickfont=dict(
+                        family=CHINESE_FONT,
+                        size=14
+                    )
+                ),
+                angularaxis=dict(
+                    tickfont=dict(
+                        family=CHINESE_FONT,
+                        size=16
+                    )
+                )
+            )
+        )
+
         return pio.to_image(fig, format="png", engine="kaleido")
     except Exception as e:
         st.error(f"圖片生成失敗: {str(e)}")