Layers
Layers are virtual levels in a drawing, analogous to acetate tabs (overlays) in traditional drafting. Layers enable you to sort objects in your drawing by type, by creation order, or by any criteria that suits the way you work. You can also use layers to protect certain objects from being edited or deleted.
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Layer 0 is the default layer, and all objects are placed here unless otherwise specified, or unless another layer is created and made active. Layer $CONSTRUCTION is created when construction geometry is created (see Construction Geometry). Neither of these default layers can be deleted, but you can change their properties.
Layer Set: See See Layer Sets.
Columns in Layers window: Use the horizontal scroll bar to see all columns. You can sort the list by clicking on any column heading; the list will be sorted according to the selected parameter.
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Layer Prefix: By default, the layers are named "Layer 1, Layer 2," etc. You can change or remove the prefix. The @ symbol is a placeholder for the automatic layer number.
Note: Many of the functions available from the Layer toolbar are also available by right clicking and opening the local menu.
Creating a New Layer
- Open the Layer manager by selecting Format / Layers, or by clicking the Layers icon on the toolbar. A dialog opens. In the dialog, right click on Layer and select new layer. Then assign a name for the layer in the Layer column (or accept the default name).
- Adjust the various layer settings, such as color and line style.
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