State Transitions
The State Transitions panel visualizes changes in discrete values from your topic message paths. Use message path syntax to specify which values to track.
The panel displays data for specified topics across the entire visualization time range.
Current playback time will be indicated by a vertical gray bar.
Paths can point to any primitive value (numbers, booleans, enums, etc.), but will be most useful for enums.
note
Constants included in your ROS message definition will be displayed as a label for each "enum" plot. Limit enums to one per message definition, as Foxglove will not know which constant name to use in the event of multiple matches.
Settings
General
| field | description |
|---|---|
| Sync with other plots | Sync zooming and panning with other plots |
| Show points | Show a point for each incoming message |
X Axis
| field | description |
|---|---|
| Min | The minimum time value to display |
| Max | The maximum time value to display |
| Range | Width of the panel viewport (in seconds) |
Series
| field | description |
|---|---|
| Message path | Message path containing values for the series |
| Label | Label displayed in the legend for the series |
| Timestamp | Timestamp used for message ordering (Log time, Publish time, or ROS header stamp) |
User interactions
- Zoom by scrolling
- Pan by dragging
- Double-click to reset the view
- Hover over the chart to see state details at that time in a tooltip
- Click the chart to seek playback to that time