Filter and Sort the List of Layers

Work with Layers

Reconcile New Layers

 

Create and Modify Objects > Control the Properties of Objects > Work with Layers > 

Use New Layer Notification

Expand All Expand all collapsed sections. Collapse All Collapse all expanded sections.

Concept

Procedure

Quick Reference

You can be notified when new layers are added to the drawing before certain tasks, such as plotting, saving, or restoring a layer state.

It is important to be aware of new layers that have been added to a drawing or to an attached xref without your knowledge. You can avoid potential problems, such as plotting objects that were added to the drawing by the addition of a new layer.

You can control when to evaluate a drawing for new layers. You can specify which commands, such as SAVE or PLOT, trigger the program to check the layer list and alert you of new layers. This can include new layers that have been added to attached xrefs.

The LAYEREVAL and LAYERNOTIFY system variables work together to control whether the layer list is evaluated and when notification occurs. Both system variables are saved in the drawing so you have control over which drawings are checked for new layers. When a project is started, it may not be necessary to know when new layers have been created. For drawings that are nearing completion, it may be important to be aware if new information has been introduced into the drawing from the addition of new layers.

The LAYEREVALCTL controls the overall Unreconciled New Layer filter list in the Layer Properties Manager which is evaluated for new layers. When the New Layer Notification is checked (LAYEREVALCTL = 1), the new layer notification feature is enabled and functions based on the LAYEREVAL and LAYERNOTIFY drawing system variables. There should be no filter (Unreconciled Layer filter) displayed when LAYEREVALCTL = 0. If one is currently displayed, it will be turned off.

By default, LAYEREVAL is set to detect any new layers that have been added to attached xrefs but not in the drawing. LAYERNOTIFY is set to notify you of new layers when opening the drawing, when loading, reloading, or attaching xrefs, or when restoring a layer state. To make changes to these settings, you can either use the system variables or the Layer Settings dialog box.

When layer notification is turned on, an Unreconciled New Layers icon displays on the status bar.

At that time, you can choose to view the new layers by right-clicking the icon and clicking the View Unreconciled New Layers link from the menu. When you click the link, the Layer Properties Manager opens, and the Unreconciled New Layers filter is automatically selected. All new layers that have been added to the drawing or attached xrefs are displayed in the list view.

The new layers are unreconciled because they have not yet been reviewed. The process of manually marking them as reconciled removes them from the Unreconciled New Layers list. (See Reconcile New Layers for more information.) Until you reconcile the layers, the notification bubble will display each time the command that triggered the notification is used.

By using the LAYERNOTIFY system variable or the Layer Settings dialog box, you can turn off layer notification but still have the layer list evaluated for new layers. Although the notification bubble does not display, you can still check for new layers by right-clicking the alert icon on the status bar. From the shortcut menu, click the View Unreconciled New Layers option.