BCE-Dates in interval/availability in czml

CesiumJS
1
  1. I’m trying to visualize historical events that go back BC. As far as i understand, the interval/availability-parameters are defined in ISO8601, with

MINIMUM_VALUE = freezeObject(JulianDate.fromIso8601(‘0000-01-01T00:00:00Z’));

JulianDate is starting at noon on Monday, January 1, 4713 BC and it would be nice having the posibility to extend the ISO8601-timestamp to understand dates BC or to define the interval/availability in JulianDate.

  1. czml-code something like:
    “clock”: {
    “interval”: “-001012-01-01T00:00:00Z/+002012-01-01T00:00:00Z”,
    “currentTime”: “-001012-01-01T00:00:00Z”,
    “multiplier”: 900000
    }
    },
    {
    “id”: 0,
    “name”: “Siege of Jerusalem (587 BC)”,
    “availability”: “-000587-01-01T00:00:00Z/+002012-01-01T00:00:00Z”,

**3. Context. Why do you need to do this? We might know a better way to accomplish your goal.**I don’t know if there is already a way to do this, but i cannot change to dates of the historical events :slight_smile:

**4. The Cesium version you’re using, your operating system and browser.**Cesium 1.43 / Arch Linux / Firefox

Thanks you very much,

Jörg