Deleting a Layer
You can delete a data Layer that you have created from an existing data source. The original data source for the Layer is not deleted from Horizons.
You may not have permissions to delete some Layers. You can delete Works Plans and Treatment Set Layers. You can not delete a survey Layer or a Network Layer.
Once a Layer has been deleted, the process cannot be undone. An error message will be displayed if you attempt to delete a Layer currently in use by the Analysis module. You can check where a Layer is used.
How to check Layer usage
Priority
In Analysis Priorities, select a prioritisation. When you hover over a row, a tool tip shows the Layer that the priority uses.
Treatment Set
This can use a Super-section Layer as its Network. Open the settings for a Treatment Set by clicking the gear icon at top right. Check the** Filter Network** field.
Works Plan
View the Treatment Set used and then view its settings as above, to see the Layer that it uses.
To delete a data Layer
- In Explorer, in the Layer drop-down, select the Layer to delete.
- Click the Layer Options icon for the required Layer.
- Click the Delete Layer icon.
- Click Yes to confirm that the Layer should be deleted.