interactionPreviewChanged

Occurs during interactive changes, before the user completes the current change and GeometryEditor.geometry then occurs. The interaction preview is the geometry displayed on screen during an ongoing interaction. The interaction preview geometry consists of the GeometryEditor.geometry with the ongoing changes applied. These changes are represented visually by feedback symbols such as GeometryEditorStyle.feedbackVertexSymbol and GeometryEditorStyle.feedbackLineSymbol. The preview updates continuously as the ongoing interaction is being performed. For example, when a GeometryEditorElement is being created, moved, scaled or rotated.

The event provides information about the interaction in progress including:

• A preview of the Geometry that is being created or updated during the interaction.

• The type of interaction that is occurring.

• The element that is being interacted with.

Cancelling or completing the interaction results in the event being raised with a null parameter, this helps to differentiate the end of one interaction and start of the next.

Because this event is raised continuously during ongoing interactions, avoid using it to trigger resource-intensive operations. To optimize performance, unsubscribe from the event when it is no longer needed.

See also