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Emergency Management

The Emergency Management feature displays active incidents and emergency events sourced from the CORD2 system on the Cesium map.

Enabling Emergency Management​

In the sidebar under Live Observation → UCF, click Emergency Management. The app fetches current events and plots them as billboards on the map.

Event Pins​

Each emergency event is displayed as a colored pin billboard at its reported location. Pin colors reflect event severity or type.

Clicking a pin:

  1. Flies the camera to the event location
  2. Opens an info box with event details including:
    • Event title and type
    • Timestamp
    • Severity level
    • Location description
    • Associated images (displayed in a carousel)

When an event includes photo documentation, images are shown in a slide carousel within the info box. Navigation arrows and dot indicators allow browsing through multiple images. Images are proxied through /proxy-image to bypass CORS restrictions.

Data Source​

Event data comes from the CORD2 Firebase Cloud Function:

Server flow:
1. POST to Firebase Identity Toolkit → get anonymous idToken
2. GET https://us-central1-cord2-6c88c.cloudfunctions.net/api/events
   with Authorization: Bearer {idToken}

This two-step auth is required because the CORD2 Cloud Function validates Firebase auth tokens. The server performs this exchange server-side using the EM_FIREBASE_API_KEY environment variable.

Implementation Notes​

  • Event entities are stored in emEventEntities[]
  • The emEventsVisible boolean tracks layer visibility
  • Events are fetched once on first toggle and re-used for subsequent show/hide operations
  • clearEmergencyEvents() removes all event entities from the viewer