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Value Panel

The Value Panel highlights one signal in large text for quick inspection.

Overview

The displayed value follows timeline state:

  • In live follow mode, the panel shows the latest value.
  • In paused mode (live or trace), it shows the value at the timeline cursor.
  • During playback, it updates as the cursor advances.

When there is no sample exactly at cursor time, the panel uses step-before lookup (latest sample at or before the cursor).

Value Panel

Edit view for the value panel.

Using the Value Panel

Adding a Signal

To display a signal in a Value panel:

  1. Add a Value panel: Click Add Panel in the timeline toolbar, then select Value
  2. Drag a signal: Drop any signal from the tree onto the panel
  3. View updates: The panel updates from live/latest or cursor-time data depending on timeline state

Value Display Features

Enum Mapping

When signals have associated value tables (enums), the panel translates numeric values to readable labels.

Example mappings:

  • Status code 0 -> "OK"
  • Mode value 3 -> "AUTO"
  • Error code 255 -> "CRITICAL_FAULT"

When available, mapped and raw values are shown together (for example: AUTO (3)).

Data Type Support

The Value panel handles all Zelos data types:

Type Display Example
Integer 42
Float 3.14159
String "Active"
Boolean true or false
Enum RUNNING
Null null

Signal Chip

Signal Chip

Signal chip for a value panel.

At the bottom of each Value panel, a signal chip provides:

  • Signal name: Full path or shortened based on settings
  • Scope context: Trace/agent labels when needed
  • Data type: Shown on hover (int, float, string, etc.)
  • Quick removal: X button to clear the panel
  • Drag capability: Move signal to other panels

Panel Settings

Access settings through the panel menu (...) -> Edit Panel:

Display Options

Panel Title

Set a custom title. If empty, the panel uses the signal name.

Display Full Name

Toggle between:

  • Full path: robot/sensors.temperature
  • Short name: temperature

Font Size

Choose from six text-size options.

Single Signal Display

Each Value panel displays one signal. To monitor multiple values:

  • Create multiple Value panels
  • Arrange them in a grid layout
  • Save the arrangement as a reusable layout

Export Data

Value panels use the same export flow as other panel types:

  1. Click the panel menu (...)
  2. Select Export Data
  3. Choose CSV or JSON
  4. Export includes the selected timeline range for that signal

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Pro Tip

Pair Value panels with Plot panels: Value for instant state, Plot for trend context.