A dataset represents one extracted series. Use separate datasets for separate curves.

Review datasets

Select the dataset you want to inspect. Visibility controls can help compare a series against the source image; use locking where available to reduce unintended edits.

Edit points

Pay particular attention to steep turns, crossings, thick lines, and ambiguous pixels. Use the point-editing controls to correct inaccurate points.

Undo and redo

Undo and redo supported edits as needed. After several changes, inspect the entire series rather than only the last edited point.

The aim is to represent the plotted curve, not pixel noise introduced by compression, anti-aliasing, or line thickness.