technical-patterns-lab/docs/2026-01-22_枢轴点绘图问题记录.md
褚宏光 5455f8e456 Implement converging triangle detection pipeline and enhance documentation
- Added pipeline_converging_triangle.py for streamlined execution of detection, reporting, and chart generation.
- Introduced triangle_config.py for centralized parameter management across scripts.
- Updated plot_converging_triangles.py to utilize parameters from the new config file.
- Revised report_converging_triangles.py to reflect dynamic detection window based on configuration.
- Enhanced existing scripts for improved error handling and output consistency.
- Added new documentation files for usage instructions and parameter configurations.
2026-01-22 11:29:04 +08:00

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枢轴点绘图问题记录

日期2026-01-22
主题:收敛三角形图表中枢轴点位置异常与修复

背景现象

outputs/converging_triangles/charts 生成的图表中,标注的枢轴点(用于连线的关键点)出现挤在一起、位置不正确的问题。

根因分析

fit_pivot_line() 返回的 selected_ph / selected_pl枢轴点数组中的索引,而非检测窗口的真实索引。
绘图时直接用 selected_ph 作为 high_win/low_win 的索引,导致标注位置偏移到窗口开头。

问题代码路径:

  • scripts/plot_converging_triangles.py
  • 相关逻辑:selected_ph / selected_plph_idx / pl_idx 的索引映射

修复方式

将枢轴点索引转换为真实位置:

selected_ph_pos = ph_idx[selected_ph]
selected_pl_pos = pl_idx[selected_pl]

绘图时使用真实位置:

ax1.scatter(selected_ph_display, high_win[selected_ph_pos], ...)
ax1.scatter(selected_pl_display, low_win[selected_pl_pos], ...)

视觉优化

将枢轴点标注样式改为空心圆圈,避免遮挡价格曲线:

marker='o', facecolors='none', edgecolors='red/green', linewidths=1.5

更新文件

  • scripts/plot_converging_triangles.py
    • 修复枢轴点索引映射
    • 空心圆圈样式

验证步骤

重新生成图表:

python scripts/plot_converging_triangles.py

验证要点:

  • 红/绿空心圆应落在真实高点/低点位置
  • 不再出现“所有枢轴点挤在一起”的情况

如需进一步增强可视化,可新增“显示所有枢轴点”的开关,用于诊断与验证。