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Layers

From: AutoCAD 2008 Essential Training

Video: Layers

Layers are used in AutoCAD to organize our drawings. By placing our entities on different layers, we have the ability to turn line work on and off, as well as control colors, linetypes, and lineweights. Let's talk a little bit about layers. I'm going to open a drawing, I'm going to come up and click my Open icon and inside the Select File dialog, we are going to look inside chapter 10 within our Exercise Files directory and we are going to open up the number one drawing, the Retro Controller. So, I will highlight that guy and click open to bring him up on my screen. Now, this is a mechanical example.

Layers

Layers are used in AutoCAD to organize our drawings. By placing our entities on different layers, we have the ability to turn line work on and off, as well as control colors, linetypes, and lineweights. Let's talk a little bit about layers. I'm going to open a drawing, I'm going to come up and click my Open icon and inside the Select File dialog, we are going to look inside chapter 10 within our Exercise Files directory and we are going to open up the number one drawing, the Retro Controller. So, I will highlight that guy and click open to bring him up on my screen. Now, this is a mechanical example.

This happens to be a drawing of a 1980s video game controller. Let's pretend for just a second that I created this drawing using a traditional pencil and paper and maybe I gave the paper to you and you looked at it and said, this is nice but it's awfully busy, can you give me a copy of this drawing without the dimensions? Well, I can't since it's all on one sheet of paper, unless I get a bottle of whiteout or an eraser, I have no way of giving you a copy without the dimensions. Let's look at it a different way. What if I drafted the controller on a piece of paper and then I laid a clear sheet of plastic on top of my paper and I drafted the dimensions on the plastic.

Now, when I give you the drawing, if you would like to see it without the dimensions, all we have to do is peel the plastic bag and the dimensions are gone. That is exactly how layers work. Each layer represents a virtual sheet of plastic. We use layers in AutoCAD to organize our drawing. For instance, we'll put dimensions on a layer, we'll put our centerlines on the layer. We may put our text and callouts on our layer. The more logical layers that we use, the more control we have over our drawing. For instance, if I wanted to plot this drawing without dimensions, I could just turn my dimensions off because they are on their own layer.

If I wanted to plot this drawing without center lines or callouts or a title block, as long as I have everything organized by layer, I have control when I plot. Let's make some adjustments to the layers in this drawing. Let's say I would like to turn off my dimensions. If I come up to my Layers toolbar, I'm going to click the dropdown right here, this is my Layer Control and when I do, I get a pop-up menu, that shows me the name of every layer in this drawing. I'm going to come down to my Dimensions layer and I am going to move over and click this little light bulb, this guy will turn the layer off and then I will click outside in Model space to clear the menu.

Now, my dimensions are removed from screen. Having my dimensions on their own layer, gives me the ability to plot this drawing without the dimensions if I wish. Let's turn off our center lines. I'm going to go back to my Layer Control and click, I'm going to come down to my centerlines layer and I will move over and click the light bulb and we will turn those off. Once again I'm going to click out in Model space to clear the menu. Those guys are now gone. Not only do layers give us more control when we plot, they also give us more control when we draft on screen, because I'm sure you will agree that what we see now is a lot less cluttered than what we started with.

If we use a logical organization of layers, I can turn off the components that I don't happen to be working on at that time and reduce my geometry to just what I need to do my job. Let's turn those layers back on. I'm going to go back up to my Layer Control and click the dropdown. I'm then going to move down and click the light bulb to turn on my centerline's layer. I will click the light bulb to turn on my dimensions layer and then I click outside in Model space to clear the menu. When it comes right down to it, layers give us more control over our drawing.

If we use a system of logically named layers to organize line work, we give ourselves more options when plotting or viewing geometry on screen.

Show transcript

This video is part of

Image for AutoCAD 2008 Essential Training
AutoCAD 2008 Essential Training

87 video lessons · 9534 viewers

Jeff Bartels
Author

 
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  1. 3m 25s
    1. Welcome
      1m 6s
    2. Introduction to AutoCAD
      1m 28s
    3. Using the exercise files
      51s
  2. 23m 3s
    1. Modelspace
      2m 19s
    2. Toolbars
      3m 22s
    3. Pulldowns
      3m 36s
    4. AutoCAD's command line
      1m 44s
    5. Dockable palettes
      3m 21s
    6. The Status bar
      2m 58s
    7. Saving your workspace
      2m 10s
    8. Essential settings
      3m 33s
  3. 19m 1s
    1. Opening an AutoCAD drawing
      3m 0s
    2. Mouse functions
      2m 1s
    3. Zooming, panning, and regen
      5m 10s
    4. The multiple-document environment
      3m 23s
    5. Saving your work
      2m 32s
    6. Using templates
      2m 55s
  4. 16m 32s
    1. The Line command
      3m 16s
    2. ORTHO and POLAR modes
      5m 44s
    3. The Circle command
      3m 26s
    4. The Heads-Up display
      4m 6s
  5. 15m 48s
    1. Defining units of measure
      6m 12s
    2. Drafting with architectural units
      5m 0s
    3. Drafting with metric units
      4m 36s
  6. 20m 49s
    1. Cartesian coordinates
      5m 48s
    2. Object snaps
      10m 27s
    3. Automating object snaps
      4m 34s
  7. 23m 26s
    1. Rectangle
      4m 20s
    2. Ellipse
      5m 58s
    3. Hatch
      8m 33s
    4. Polygon
      4m 35s
  8. 23m 19s
    1. Move and Copy
      6m 43s
    2. Rotate
      5m 4s
    3. Offset
      6m 1s
    4. Erase
      2m 5s
    5. Undo and Redo
      3m 26s
  9. 12m 34s
    1. Windows and crossing windows
      4m 48s
    2. Removing from selections
      3m 42s
    3. Using key-ins
      4m 4s
  10. 1h 4m
    1. Trim and Extend
      6m 53s
    2. Fillet
      5m 1s
    3. Chamfer
      6m 35s
    4. Array
      8m 1s
    5. Mirror
      6m 52s
    6. Stretch
      5m 49s
    7. Scale
      5m 17s
    8. Grips
      7m 37s
    9. Explode
      4m 16s
    10. Polyline edit
      7m 46s
  11. 26m 0s
    1. Layers
      3m 30s
    2. The Layer Properties Manager
      9m 6s
    3. Layer control
      4m 29s
    4. The ByLayer property
      5m 26s
    5. The Layer Previous command
      3m 29s
  12. 43m 5s
    1. Single-line text
      3m 46s
    2. Text justification
      7m 2s
    3. Text styles
      7m 30s
    4. Multi-line text
      6m 28s
    5. Editing
      3m 24s
    6. Bulleted and numbered lists
      4m 5s
    7. Symbols
      6m 17s
    8. Spell-checking
      4m 33s
  13. 28m 58s
    1. Creating dimensions
      8m 35s
    2. Dimension styles
      6m 40s
    3. Callouts
      6m 40s
    4. Tweaking dimensions
      7m 3s
  14. 14m 48s
    1. The Distance command
      4m 15s
    2. The Property Changer
      6m 30s
    3. The Quick Calculator
      4m 3s
  15. 25m 8s
    1. Creating and inserting blocks
      10m 15s
    2. Using blocks
      5m 46s
    3. Modifying blocks
      4m 9s
    4. Building your library
      4m 58s
  16. 48m 29s
    1. Quick plots
      6m 40s
    2. Selecting a pen table
      5m 35s
    3. Layouts pt. 1: Choosing paper
      3m 21s
    4. Layouts pt. 2: Inserting a title block
      3m 11s
    5. Layouts pt. 3: Cutting a viewport
      6m 17s
    6. Layouts pt. 4: Reusing layouts
      4m 14s
    7. Scale factors
      3m 58s
    8. Sizing modelspace text
      7m 15s
    9. Sizing modelspace dimensions
      4m 47s
    10. Sizing linetypes
      3m 11s
  17. 9m 57s
    1. Drawing compatibility
      3m 4s
    2. E-transmitting
      3m 10s
    3. Saving to the Design Web format
      3m 43s
  18. 18s
    1. Goodbye
      18s

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