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PeogeSOFT IntelliCAD – Controlling layer visibility

A layer can be visible or invisible.
Entities on invisible layers are not displayed and do not print.
By controlling layer visibility, you can turn off unnecessary information, such as construction lines or notes.
By changing layer visibility, you can put the same drawing to multiple uses.

For example, if you are drawing a floor plan, you can draw the layout of light fixtures on one layer and the location of plumbing lines on another.
By selectively turning layers on and off, you can print the electrical engineering drawings and the plumbing drawings from the same drawing file.
For even more convenience, you can control the visibility of layers within individual viewports, so that layers that display in one viewport are invisible in other viewports in the same drawing.

When you turn a layer off, entities drawn on that layer are no longer visible.
When you turn the layer back on, the entities on that layer are redisplayed.

To turn layers on or off

1 Do one of the following:
  • Choose Settings > Explore Layers.
  • On the Settings toolbar, click the Explore Layers tool.
  • Type explayers and then press Enter.
2 In the Layer Name list, select the layer you want to turn on
   or off.
3 Do one of the following:
  • Choose View > On/Off.
  • Right-click the layer you want to change, and from the
     shortcut menu, select Properties and turn the layer on
     or off.
  • Click the setting in the On/Off column. The On/Off
     column shows the new setting.
4 To complete the command and return to your drawing,
     close the window.

You can also freeze layers to improve the performance of operations such as zooming and panning or producing hidden lines or shaded images.
When a layer is frozen, entities drawn on that layer are no longer visible.
To control the visibility of external reference layers and save any changes made to them in the current drawing, turn on the XRef Layer Visibility system variable.

To turn on XRef Layer Visibility

1 Do one of the following:
  • Choose Settings > Explore Layers.
  • On the Settings toolbar, click the Explore Layers tool.
  • Type explayers and then press Enter
2 Choose View > XRef Layer Visibility.

NOTE You can also turn on this variable by typing visretain.

To freeze or thaw layers

1 Do one of the following:
  • Choose Settings > Explore Layers.
  • On the Settings toolbar, click the Explore Layers tool.
  • Type explayers and then press Enter.
2 In the Layer Name list, select the layers you want to freeze
   or thaw.
3 Do one of the following:
  • Choose View > Freeze/Thaw.
  • Right-click the layer you want to change, and from the
     shortcut menu, select Properties and freeze or thaw
     the layer.
  • Click the setting in the All Viewports column. The All
     Viewports column shows the new setting.
4 To complete the command and return to your drawing,
   close the window.



Originally posted by ProgeSOFT from Learning IntelliCAD

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