Archetypes

Leaf archetypes

Simple one-to-one field mappings:

{
  temperature: { archetype: "Scalars" },
  message: { archetype: "TextLog" },
  description: { archetype: "TextDocument" },
}

Map multiple sub-fields to a single Rerun archetype:

{
  position: {
    archetype: "Points3D",
    x: "x", y: "y", z: "z",
    label: "name",
  },
}

Use each to iterate over arrays and log each element:

{
  detections: {
    archetype: "Points3D",
    each: ".",
    x: "position.x", y: "position.y", z: "position.z",
    label: "class",
  },
}

The each field specifies the path to the array. Use "." when the field itself is the array. Each element is logged individually.

Recurse into sub-messages:

{
  position: {
    fields: {
      x: { archetype: "Scalars" },
      y: { archetype: "Scalars" },
      z: { archetype: "Scalars" },
    }
  },
}

Use dot notation to access nested fields:

{
  target: {
    archetype: "Points3D",
    x: "pose.position.x",
    y: "pose.position.y",
    z: "pose.position.z",
  },
}