A new spline
Add a new corner point: click. Add a new smooth point, Alt + click, or click and drag.
Select multiple points: Shift + click.
Refine a curve: click on the curve and drag.
Set an explicit tangent: click and drag on the handles. Set axis-aligned: Shift + click. Unset an explicit tangent: drag away.
Toggle between smooth and corner points: double-click.
Delete a point: delete (or backspace) key.
Nudge points by 1 px: arrow keys. Nudge by 10 px: Shift + arrow keys.
Copyright 2018 Raph Levien
Github repo: raphlinus/spline-research
Load from JSON