dasd

.gitignore

@@ -4,6 +4,7 @@ __pycache__/
 .venv/
 .build-venv/
 venv/
+client/
 *.egg-info/
 dist/
 build/

README.md

@@ -26,6 +26,7 @@ python main.py static/test.mp4
 1. **文件 → 打开视频**
 2. 在首帧依次点击 **O**（圆心）、**M**（初始尾端参考）
 3. 拖动滑块到目标帧，点击 **M2**（当前尾端），右侧显示角度
+4. 在画面上按 **A** / **D** 可按“跳帧数”向前 / 向后跳转
 
 ### 测量模式
 
@@ -34,6 +35,7 @@ python main.py static/test.mp4
 3. 逐帧点击 M2，每点完一帧自动进下一帧
 4. 点击 **「停止测量」** 或跑完全部帧后自动停止
 5. **「导出测量数据 (CSV)」** 保存角度 + 每帧标注截图
+6. 测量中按 **A** / **D** 按“跳帧数”跳转，按 **→** 跳过当前帧并记录 0
 
 ### 方向矫正
 

agent.md

@@ -0,0 +1,51 @@
+# Actuator Agent Guide
+
+## Project
+
+- Python/PyQt6 desktop tool for reading actuator angles from video frames.
+- Application entry point: `main.py`.
+- Core modules: `actuator/angle_calc.py`, `actuator/video_reader.py`, and `actuator/automation.py`.
+
+## Environment
+
+- Use the project-local `uv` virtual environment: `client/`.
+- Python version: 3.10.
+- Install or refresh dependencies:
+
+```bash
+uv pip install --python client/bin/python -r requirements.txt
+```
+
+## Run And Verify
+
+```bash
+client/bin/python main.py
+```
+
+For Wayland:
+
+```bash
+QT_QPA_PLATFORM=xcb client/bin/python main.py
+```
+
+Smoke-test GUI initialization without a display:
+
+```bash
+QT_QPA_PLATFORM=offscreen timeout 5s client/bin/python main.py
+```
+
+An exit status caused by `timeout` is expected when the GUI initializes and remains open.
+
+## Frame Navigation
+
+- Set the "跳帧数" control to choose a frame-jump step (1-10000).
+- `A`: move backward by the selected step.
+- `D`: move forward by the selected step.
+- During measurement, `A`/`D` only navigate and do not create measurements for skipped frames.
+- During measurement, `Right` skips the current frame and records angle `0`; if M2 is selected, it records the measurement and advances one frame.
+
+## Change Guidelines
+
+- Keep GUI text in Chinese to match the existing application.
+- Run `client/bin/python -m py_compile main.py actuator/*.py` after Python changes.
+- Do not commit the local `client/` environment; it is ignored by Git.

main.py

@@ -24,7 +24,7 @@ from PyQt6.QtWidgets import (
     QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
     QLabel, QPushButton, QSlider, QFileDialog, QGroupBox,
     QDoubleSpinBox, QFormLayout, QMessageBox, QSplitter, QCheckBox,
-    QSizePolicy,
+    QSizePolicy, QSpinBox,
 )
 
 from actuator import VideoReader, signed_angle, curvature_from_three_points
@@ -55,6 +55,7 @@ class FrameView(QLabel):
         self.setAlignment(Qt.AlignmentFlag.AlignCenter)
         self.setStyleSheet("background: #1a1a1a; border: 1px solid #333;")
         self.setMouseTracking(True)
+        self.setFocusPolicy(Qt.FocusPolicy.StrongFocus)
         self.setAcceptDrops(True)
 
         self._frame: Optional[np.ndarray] = None
@@ -375,10 +376,19 @@ class MainWindow(QMainWindow):
         self.slider.setMaximum(0)
         self.slider.valueChanged.connect(self._on_slider)
         nl.addWidget(self.slider)
+        step_row = QHBoxLayout()
+        step_row.addWidget(QLabel("跳帧数:"))
+        self.spin_frame_step = QSpinBox()
+        self.spin_frame_step.setRange(1, 10000)
+        self.spin_frame_step.setValue(1)
+        self.spin_frame_step.setSuffix(" 帧")
+        self.spin_frame_step.setToolTip("A/D 快捷键和导航按钮的跳转步长")
+        step_row.addWidget(self.spin_frame_step)
+        nl.addLayout(step_row)
         bn = QHBoxLayout()
-        self.btn_prev = QPushButton("◀")
+        self.btn_prev = QPushButton("A ◀")
         self.btn_prev.clicked.connect(self._prev_frame)
-        self.btn_next = QPushButton("▶")
+        self.btn_next = QPushButton("D ▶")
         self.btn_next.clicked.connect(self._next_frame)
         bn.addWidget(self.btn_prev)
         bn.addWidget(self.btn_next)
@@ -486,13 +496,23 @@ class MainWindow(QMainWindow):
             self._show_frame(value)
 
     def _prev_frame(self) -> None:
-        if self._video and not self._measuring:
-            self._show_frame(max(0, self._current_frame_idx - 1))
+        self._jump_frames(-self.spin_frame_step.value())
 
     def _next_frame(self) -> None:
-        if self._video and not self._measuring:
-            self._show_frame(min(self._video.frame_count - 1,
-                                 self._current_frame_idx + 1))
+        self._jump_frames(self.spin_frame_step.value())
+
+    def _jump_frames(self, offset: int) -> None:
+        """按偏移量跳转，测量时不为未测帧创建记录。"""
+        if self._video is None:
+            return
+        target = max(0, min(self._video.frame_count - 1,
+                            self._current_frame_idx + offset))
+        if target == self._current_frame_idx:
+            return
+        if self._measuring:
+            self._go_to_frame(target)
+        else:
+            self._show_frame(target)
 
     # ══════════════ 测量模式 ═════════════════════════════
 
@@ -527,6 +547,12 @@ class MainWindow(QMainWindow):
         self._update_display()
 
     def _on_key_pressed(self, key: int) -> None:
+        if key == Qt.Key.Key_A:
+            self._prev_frame()
+            return
+        if key == Qt.Key.Key_D:
+            self._next_frame()
+            return
         if not self._measuring:
             return
         if key == Qt.Key.Key_Right:
@@ -535,9 +561,7 @@ class MainWindow(QMainWindow):
             else:
                 self._record_skip()
         elif key == Qt.Key.Key_Left:
-            if self._current_frame_idx > 0:
-                self._current_frame_idx -= 1
-                self._show_frame(self._current_frame_idx)
+            self._jump_frames(-1)
 
     def _record_skip(self) -> None:
         """跳过当前帧，记录 0"""