toggle cutoff line only in quick preview

WebSite/src/App.tsx

@@ -31,6 +31,8 @@ import {
   Server,
   AlertCircle,
   Info,
+  Eye,
+  EyeOff,
   X
 } from 'lucide-react';
 
@@ -239,6 +241,7 @@ export default function App() {
   // --- Simulation State (Workspace) ---
   const [cervicalRotation, setCervicalRotation] = useState(14.5);
   const [transitionWidth, setTransitionWidth] = useState(90);
+  const [showPreviewCutoffLine, setShowPreviewCutoffLine] = useState(true);
   const [isSimulating, setIsSimulating] = useState(restoredDeformationJob?.job.status === 'running');
   const [progress, setProgress] = useState(restoredDeformationJob ? progressFromJob(restoredDeformationJob.job, restoredDeformationJob.progress) : 0);
   const [toastMessage, setToastMessage] = useState("");
@@ -665,7 +668,8 @@ export default function App() {
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify({
             inputDir: selectedInputDir,
-            angleDegrees: cervicalRotation
+            angleDegrees: cervicalRotation,
+            showCutoffLine: showPreviewCutoffLine
           }),
           signal: controller.signal
         });
@@ -688,7 +692,7 @@ export default function App() {
       controller.abort();
       window.clearTimeout(timer);
     };
-  }, [currentPage, selectedInputDir, cervicalRotation]);
+  }, [currentPage, selectedInputDir, cervicalRotation, showPreviewCutoffLine]);
 
   const handleRunSimulation = async () => {
     if (isSimulating) return;
@@ -901,6 +905,17 @@ export default function App() {
                       <div className="flex justify-between text-xs font-bold mb-2 text-slate-600"><span>过渡平滑宽度</span><span className="text-blue-600 font-mono">{transitionWidth}</span></div>
                       <input type="range" min="50" max="160" step="10" value={transitionWidth} onChange={e => setTransitionWidth(parseInt(e.target.value, 10))} className="w-full h-1.5 bg-slate-100 rounded-lg appearance-none cursor-pointer accent-blue-600 opacity-80 hover:opacity-100 transition-opacity" />
                     </div>
+                    <button
+                      onClick={() => setShowPreviewCutoffLine(value => !value)}
+                      className={`w-full py-2.5 rounded-xl text-xs font-black transition-all flex items-center justify-center gap-2 border ${
+                        showPreviewCutoffLine
+                          ? 'bg-yellow-50 text-yellow-700 border-yellow-200 hover:bg-yellow-100'
+                          : 'bg-slate-50 text-slate-500 border-slate-200 hover:bg-slate-100'
+                      }`}
+                    >
+                      {showPreviewCutoffLine ? <Eye size={14} /> : <EyeOff size={14} />}
+                      {showPreviewCutoffLine ? '隐藏预览分界线' : '显示预览分界线'}
+                    </button>
                   </div>
 
                   <div>

head_extension_app.py

@@ -355,18 +355,12 @@ def run_deformation(input_dir, output_dir, angle_degrees, transition_width, prog
     output_paths["legacy_soft"] = legacy_soft_dir
 
     progress("正在生成四状态过程对比图...")
-    preview_paths = make_four_state_preview(
+    preview_paths = make_four_state_preview(state_images, Path(output_dir), angle_degrees)
-        state_images,
-        Path(output_dir),
-        angle_degrees,
-        vol_info.coordinates_cutoff,
-    )
     make_output_preview_from_images(
         state_images["original"],
         state_images["soft_transition"],
         Path(output_dir),
         angle_degrees,
-        vol_info.coordinates_cutoff,
     )
     return output_paths, preview_paths
 
@@ -604,12 +598,12 @@ class HeadExtensionApp:
                 self.status.set("正在读取 DICOM 生成预览...")
                 self.cached_volume = load_dicom_volume(self.input_dir.get())
             before = crop_head_neck(sagittal_mip(self.cached_volume))
-            after = preview_deform_2d(before, float(self.angle.get()))
+            before_with_line = draw_cutoff_line(before, self.cached_volume.shape[0])
-            after = draw_cutoff_line(after, self.cached_volume.shape[0])
+            after = preview_deform_2d(before_with_line, float(self.angle.get()))
 
             canvas = Image.new("RGB", (1120, 610), (0, 0, 0))
             draw = ImageDraw.Draw(canvas)
-            before_panel = fit_image(before, 520, 500)
+            before_panel = fit_image(before_with_line, 520, 500)
             after_panel = fit_image(after, 520, 500)
             canvas.paste(before_panel, (30, 80))
             canvas.paste(after_panel, (570, 80))

web_backend.py

@@ -547,15 +547,18 @@ def start_job(kind, worker, owner=None, params=None, remember_user_task=True):
     return get_job(job_id)
 
 
-def make_preview(input_dir, angle_degrees):
+def make_preview(input_dir, angle_degrees, show_cutoff_line=True):
     volume = load_dicom_volume(input_dir)
     before = crop_head_neck(sagittal_mip(volume))
-    after = preview_deform_2d(before, float(angle_degrees))
+    before_display = draw_cutoff_line(before, volume.shape[0]) if show_cutoff_line else before
-    after = draw_cutoff_line(after, volume.shape[0])
+    after = preview_deform_2d(before_display, float(angle_degrees))
+
+    canvas_image = Image.new("RGB", (1440, 520), (0, 0, 0))
+    canvas_image.paste(fit_image(before_display, 700, 520), (0, 0))
+    canvas_image.paste(fit_image(after, 700, 520), (740, 0))
 
     canvas = BytesIO()
-    preview = fit_image(after, 720, 520)
+    canvas_image.save(canvas, format="PNG")
-    preview.save(canvas, format="PNG")
     encoded = base64.b64encode(canvas.getvalue()).decode("ascii")
     return {
         "image": f"data:image/png;base64,{encoded}",
@@ -721,7 +724,13 @@ class Handler(BaseHTTPRequestHandler):
 
             body = self.read_json()
             if parsed.path == "/api/preview":
-                self.send_json(make_preview(body["inputDir"], body.get("angleDegrees", 12)))
+                self.send_json(
+                    make_preview(
+                        body["inputDir"],
+                        body.get("angleDegrees", 12),
+                        bool(body.get("showCutoffLine", True)),
+                    )
+                )
                 return
 
             if parsed.path == "/api/deformation/package":