Layers are displayed in alphabetical order in the layer list, and this is does not relate to the order that entities appear in the z-axis of the drawing. the checkbox in the layer settings window.right-click on a layer and choose "Toggle Construction Layer".You can toggle between construction and normal mode three ways: All lines of a construction layer are infinite in length.A construction layer won't appear on printout.Note: Construction layers were previously known as help layers.Ī construction layer is designed to hold geometry construction lines: With this option enabled you can move objects to a layer by selecting the objects and then selecting the destination layer. In the Attributes dialog, drop down the Layer selection box and choose the desired layer.Īlternatively you can activate the option Application Preferences → Defaults → Modify layer of selected entities, at layer activation.Select the continue action button (double right arrow).See Selections for a detailed description of how to select objects Select the objects you want to change the layer of.From the menu select Modify->Attributes.This describes how to move one or more objects between layers. Sometimes it is necessary to change an object's layer. Optionally specify the Color, Width and Line Type.Layers are usually created to hold objects with common attributes. These sheets were then overlaid one on top of another to produce final drawings. The layers were often drawn on separate transparent sheets of paper. layers were used to show different aspects of a drawing - for example this could be a layer set up for showing centre lines on an engineering drawing or to show different building systems, such as wiring and air conditioning. Whether for Engineering, Architectural or Construction drawing etc. In traditional manual drafting, a similar approach was used. In the latter case for example you can change the colour of all the entities on the "axes" layer by setting the colour (red for example) for that layer. Each entity can have its own attributes or have its attributes defined by the layer it is placed on. Layers can have their own attributes also (colour, line width, line style etc.). you might want to put all axes in a drawing on a layer named 'axes' (see Figure 1 below). Typically entities with a common 'function' or common attributes are put on the same layer. Every entity in a drawing is on exactly one layer and a layer can contain lots of entities. A basic concept in computer aided drafting is the use of layers to organize a drawing.
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