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Table Of Contents
states and layer properties you want to restore later. For example, you can
choose to restore only the Frozen/Thawed setting of the layers in a drawing,
ignoring all other settings. When you restore that named layer state, all settings
remain as they are currently set except whether each layer is frozen or thawed.
Save Layer Property Override Settings
When layers contain viewport property overrides, those settings are saved to
a layer state when the viewport that contains overrides is active.
If the layer state is saved from model space, any layer property override settings
are not included. This is because only one value can be saved for each layer
property in a layer state. If layer property overrides need to be saved in the
layer state, make the viewport active on the layout tab and then save the layer
state.
Restore Layer Settings
When you restore a layer state, the layer settings (layer states and layer
properties) that were specified when the layer state was saved are restored.
You can specify specific settings to restore in the Layer States Manager. The
layer property settings that are not selected remain unchanged in the drawing.
If the drawing contains layers that were added since a layer state was saved,
you can add those layers. By editing the layer state and using the Select Layers
to Add to Layer State dialog box you can select the layers you want to add to
the layer state.
NOTE To be notified when new layers are added to the drawing, use the
LAYEREVAL and LAYERNOTIFY system variables.
When restoring layer states, the following additional behaviors can occur
When restoring a layer state, the layer that was current when the layer
state was saved is made current. If that layer no longer exists, the current
layer does not change.
If a layout viewport is active when a layer state is restored, and the Visibility
in Current VP restore option is selected, all layers that need to be visible
in the viewport are turned on and thawed in model space. All layers that
should not be visible in the viewport are set to VP Freeze in the current
viewport and the model space visibility is unchanged.
The Layers panel on the RIBBON contains controls for selecting and restoring
saved layer states, including a button to access the Layer States Manager. The
name of the last restored layer state is displayed in the Layers panel. When
506 | Chapter 16 Control the Properties of Objects