Staircase interpolation between points (line and area charts).
<insightdock/series_style.h>
enum class StepMode : int;
| Name | Description |
|---|---|
None | Straight segments (default). |
After | Hold each value until the next x ("step-post"): horizontal first, then vertical. |
Before | Jump to the next value immediately ("step-pre"): vertical first, then horizontal. |
Middle | Change halfway between two points. |