Node LibraryDatasets

Create ontology

Overview

Names the ontology the rest of the flow works in, and lets you build one without leaving the graph.

Use it when a flow needs a vocabulary that no dataset carries yet, or to point several nodes at the same set.

Create ontology Labeling

How it works

1

Use existing shows an ontology picker on its own, and nothing is created or changed.

2

Create or edit shows a picker that also creates: type a name no ontology has yet and press Enter.

3

In that mode, typing a class name the set does not hold and pressing Enter opens a dialog for its geometry, colour, kind, hotkey and description. Create appends it to the set as a new version.

4

When it runs, pins the ontology’s current version and passes it downstream through the Ontology output.

FAQ

Nothing in your datasets, assets or annotations. In Create or edit mode it creates an ontology or appends classes to one, which is metadata.

No. The ontology is built while you configure the node, so a run only resolves the reference and hands it on.

Either no ontology is selected in the input the current Mode shows, or the selected ontology has no classes yet. Add a class in the Ontology input, or on the ontology’s page under Classes.

Only after the next run. The output names the ontology version that was current when the node ran.

On the ontology’s own page under Classes. Order matters there because it becomes a model’s output order.

Inputs

Mode
selectDefaults to useRequired

Whether this node points at an existing ontology, or builds one. Key: ONTOLOGY_MODE.

Options:

  • Use existing (use)
  • Create or edit (edit)
Ontology
ontologyRequired

Class list the rest of the flow works in. Visible when ONTOLOGY_MODE is use. Key: ONTOLOGY.

Ontology
ontologyRequired

Type a name no ontology has yet and press Enter to create it, then type a class name the ontology does not hold to add it. Visible when ONTOLOGY_MODE is edit. Key: ONTOLOGY_DRAFT.

Outputs

Ontology
ontology

The ontology version the rest of the flow works in. Key: ONTOLOGY.

JSON config

Machine-readable node interface for automation and advanced usage.

{
  "name": "Create ontology",
  "description": "Defines the ontology the rest of the flow works in. Pick one that already exists, or create one right here and fill it with classes without leaving the graph.",
  "category": "Datasets",
  "namespace": null,
  "templateKey": "dataset_ops/create_ontology",
  "version": "v1",
  "inputs": [
    {
      "key": "ONTOLOGY_MODE",
      "label": "Mode",
      "type": "select",
      "description": "Whether this node points at an existing ontology, or builds one.",
      "required": true,
      "default": "use",
      "visibleWhen": null,
      "options": {
        "control": "tabs",
        "options": [
          {
            "label": "Use existing",
            "value": "use"
          },
          {
            "label": "Create or edit",
            "value": "edit"
          }
        ]
      }
    },
    {
      "key": "ONTOLOGY",
      "label": "Ontology",
      "type": "ontology",
      "description": "Class list the rest of the flow works in.",
      "required": true,
      "default": null,
      "visibleWhen": {
        "key": "ONTOLOGY_MODE",
        "operator": "equals",
        "value": "use"
      }
    },
    {
      "key": "ONTOLOGY_DRAFT",
      "label": "Ontology",
      "type": "ontology",
      "description": "Type a name no ontology has yet and press Enter to create it, then type a class name the ontology does not hold to add it.",
      "required": true,
      "default": null,
      "visibleWhen": {
        "key": "ONTOLOGY_MODE",
        "operator": "equals",
        "value": "edit"
      },
      "options": {
        "creatable": true,
        "selectable": true
      }
    }
  ],
  "outputs": [
    {
      "key": "ONTOLOGY",
      "label": "Ontology",
      "type": "ontology",
      "description": "The ontology version the rest of the flow works in.",
      "artifact": false,
      "badge": false,
      "badgeOpens": null,
      "hidden": false
    }
  ]
}