rig.cad.reference_plane

Unbounded flat datum to build against. Format when present.

This is not a solid. Do not put it on the same entity as rig.cad.cuboid / boolean, and never list it in boolean.operands - a datum has no volume to add or subtract. It does not cut anything either; a clipped view is rig.bim.viewpoint.

The plane has no edges. A host draws whatever patch suits the current view.

a moves the plane onto an entity so the datum tracks it when the model rebuilds; normal stays authored either way, since one entity fixes a point but not an orientation. A host that cannot resolve a ignores the component rather than falling back to origin. A normal of zero length is ignored the same way.

Give the datum a readable label with rig.meta.named.

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://rig.works/schemas/rig.cad.reference_plane.schema.json",
  "title": "rig.cad.reference_plane",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "origin": {
      "$ref": "./_defs.schema.json#/$defs/vec3"
    },
    "normal": {
      "$ref": "./_defs.schema.json#/$defs/vec3"
    },
    "a": {
      "$ref": "./_defs.schema.json#/$defs/entity"
    }
  }
}