CronoFilter

The CronoFilter panel manages custom chronological horizons (time periods) that can be used for temporal filtering and exported with Heriverse context data. The panel appears in the EM tab when Landscape mode is active.

Panel Layout

Header:

  • Label: Chronological Horizons

Operations:

  • Auto from Epochs button: automatically generates horizons from the epoch data of all loaded graphs

  • Save button: exports horizons to a .cf.json file

  • Load button: imports horizons from a previously saved .cf.json file

Horizons List:

Each row in the list displays:

  • Enabled checkbox: toggle whether the horizon is included in exports

  • Color swatch: click to change the horizon color

  • Label: editable name of the horizon

  • Time range: start_time - end_time displayed on the right

List controls on the right side:

  • + button: add a new empty horizon

  • - button: remove the selected horizon

  • Up/Down arrows: reorder horizons in the list

Edit Selected Horizon (when an item is selected):

  • Label text field

  • Start Time and End Time integer fields (negative values for BC dates)

  • Color picker and Enabled checkbox

Status:

  • Shows the count of enabled horizons vs total: Status: N/M horizons enabled

Workflow

Auto-generating horizons from epochs:

  1. Load one or more GraphML files in Landscape mode (each may contain EpochNodes with time boundaries)

  2. Click Auto from Epochs

  3. The system collects all epoch time boundaries, creates breakpoints, and generates a horizon for each interval

  4. Each horizon is assigned a label and color from the best-matching epoch

  5. Edit labels, colors, and time boundaries as needed

Manually creating horizons:

  1. Click the + button to add a new horizon

  2. Set the label, start time, end time, and color in the edit area

  3. Toggle the enabled checkbox to include or exclude the horizon

Saving and loading:

  • Click Save to export all horizons to a .cf.json file

  • Click Load to import horizons from a file, replacing the current list

  • The file format stores version, type, and all horizon data (label, start, end, color as hex, enabled status)