fix the finger 2D canvas orientation and the 3D arrow size

The unrolled canvas put the finger's +x where the 3D default view puts screen-left, and the 3D flow arrows rasterised as 0.23 px hairlines because their stroke was 2 % of their own sub-millimetre length. The 2D presentation is now the derived half turn (persisted, set from the plot-settings dialog) and the 3D stroke is one canvas pixel — the width the 2D canvas draws — verified numerically and with real-GL snapshots.
2026-10-04 10:03:46 +08:00
parent 9b1a3fb922
commit dda6c74fb7
14 changed files with 1383 additions and 15 deletions
@@ -32,6 +32,7 @@
  "plot_deadband_raw": 0.0,
  "image_view_mode": "arrows_pure",
  "arrow_rotation_deg": 90,
+  "finger_2d_orientation": "rotate180",
  "settings_expanded": false,
  "view_preset": "custom",
  "splitter_sizes": [340, 480, 400]