Add a knowledge graph to a link chart—ArcGIS Knowledge Server

Create a link chart to visualize, analyze, and explore a knowledge graph's content. You can create a blank link chart from the Investigation Contents pane or you can start from any of the views in which you work with a knowledge graph: maps, the knowledge graph view, data cards, global search and other link charts. You can select entities and relationships in the active view and add them to a new link chart.

When a link chart is created and opened, any entities you selected in the knowledge graph view, for example, are added. When you select and add a relationship, the relationship is added along with its origin and destination entities, even when those entities were not selected in the knowledge graph view. When you add entities and relationships to a link chart, a link chart layer is created in the Link Chart Contents pane. The entities and relationships added to the new link chart are arranged using the radial tree layout by default; this becomes the current layout for the new link chart. You can change how records are arranged by applying a different layout from the Context Toolbar.

Learn more about arranging records in a link chart

You can also add entities and relationships to an existing link chart from any of the places in which you work with a knowledge graph's content: maps, knowledge graph view, data cards, global search, and other link charts.

Whichever method you use to add content to a link chart, the layout currently in use for visualizing the link chart's content is automatically reapplied to the entire link chart.

Open a sublayer's attribute table to see the properties of the entities or relationships of that type.

Note:

Knowledge Studio only allows thirteen content items open at once. If you have reached the limit you will need to close a tab before you can open the link chart. If you created a new link chart, the link chart is created but not opened. Close a tab at the bottom of the view and click the new link chart in the Investigation Contents pane to open it.

Create a blank link chart

You can create a blank link chart directly from the Investigation Contents pane. Use any of the other methods listed to add data to your link chart.

In the Investigation Contents click Add Content
Click Link Chart

A new link chart is created in the Investigation Contents.

Add content from the knowledge graph view

You can add a single record, an entire entity type, or specific instances of an entity or relationship type to a link chart from the knowledge graph view. When you add content to a link chart, a link chart layer representing the entire knowledge graph is created and added to the link chart but only the selected records are included in the layer. New link charts appear in the Investigation Contents pane

Add a single entity or relationship

A record displayed in the details pane can be added directly to a link chart.

From the Knowledge Graph View Context Toolbar , click Add Record To .
Click the appropriate option to add a link chart layer to the link chart.
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

Add multiple entities or relationships

Multiple entities of an entity or relationship type can be added to a link chart from the knowledge graph view.

Use the check boxes to select entities or relationships from the record list.
From the record list, click Add Selection To .
Click the appropriate option to add a knowledge graph to the link chart.
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

Add an entire entity or relationship type

All instance of an entity or relationship type can be added to a link chart.

Hover over an entity or relationship type in the Knowledge Graph Contents pane and click Add Selection To .
Click the appropriate option to add a knowledge graph to the link chart.
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

Add an entire knowledge graph

All entities and relationships in the knowledge graph can be added to a link chart.

In the Knowledge Graph Contents pane, click Add Selection To next to the knowledge graph title.
Click the appropriate option to add a knowledge graph to the link chart.
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

The link chart opens in a tab and becomes the active view. The entities and relationships selected in the knowledge graph view are added and arranged using the appropriate link chart layout. The radial tree layout is applied to the records in new link charts by default and default symbology will be used. New link charts appear the Investigation Contents pane.

Add content from a link chart

After creating a link chart from an investigation's knowledge graph, you can add selected content from the existing link chart to another link chart.

Select the entities and relationships in the link chart that you want to add to the link chart
- Hold Ctrl and click the entities and relationships to add.
- Click Select All in the link chartContext Toolbar click the name of an existing link chart.
- Select records in the link chart sublayer record table
- Hold Ctrl and click the entities and relationships to unselect them.
- Click anywhere on the canvas to unselect all entities and relationships.
In the link chart Context Toolbar click Add Selection To .
Select the entities and relationships in the link chart that you want to add to the link chart
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

Add content from a map

After creating a map from an investigation's knowledge graph, you can add selected content from the existing link chart to another link chart.

Select the entities and relationships in the link chart that you want to add to the link chart
- Hold Ctrl and click the entities and relationships to add.
- Select records in the map sublayer record table
- Hold Ctrl and click the entities and relationships to unselect them.
- Click anywhere on the canvas to unselect all entities and relationships.
In the link chart Context Toolbar click Add Selection To .
Select the entities and relationships in the map that you want to add to the link chart
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

Add a knowledge graph layer from global search

Entity and relationship types returned in global search results can be added to new or existing link charts.

Select records by clicking the checkbox.
Click Add Selection To at the top of the search results pane.
Click the appropriate option to add the selected records to the link chart.
- Under Add to new..., click Link Chart to create a link chart in the project.
- Under Add to existing..., click the name of an existing link chart.

Toggle visibility of knowledge graph layers and sublayers

You can show or hide a link chart layer and entity type and relation type sublayers on a link chart.

Click Options next to the layer in the contents pane.
Click Toggle visibility to show or hide the knowledge graph layer or its sublayers.

Rename a link chart layer or sublayers

A link chart layer and its sublayers can be renamed in the link chart view. Changing the name will only change the display name of the layer in the Link Chart Contents pane of the current link chart. It will not change the layer's name across other link charts in the project, or the name of the entity or relationship type the layer represents.

Click Options next to the layer in the contents pane.
Click Rename .
The rename dialogue appears.
Enter the new layer name and click OK.

Remove knowledge graph records from a link chart

Entities and relationships can be removed from a link chart. Removed records will remain in other maps, link charts, and data cards in the project.

Select the entities and relationships you want to remove from the link chart
- Hold the Ctrl key and click the entities and relationships.
- Click Select All to select all entities and relationships.
- Select records in the entity or relationship type sublayer record table.
- Hold the Ctrl key and click selected entities and relationships on the canvas to unselect them.
- Click anywhere on the canvas to unselect all entities and relationships.
From the Context Toolbar, click Remove .

View Legend

Each entity type and relationship type in the link chart will have default symbology applied. Use the legend to see the symbology for each sublayer.

Click Toggle Legend in the link chart Context Toolbar

Change Basemap

Change the basemap to change the background color of a link chart.

Click Change Basemap in the link chart Context Toolbar.
Select the basemap to use as the background.

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